Spm Trial 2013 Physics Qa SBP

SULIT Fizik Kertas 1 Ogos 2013 1 ¼ Jam

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BAHAGIAN PENGURUSAN SEKOLAH BERASRAMA PENUH DAN SEKOLAH KECEMERLANGAN KEMENTERIAN PENDIDIKAN MALAYSIA PENTAKSIRAN DIAGNOSTIK AKADEMIK SBP 2013 PERCUBAAN SIJIL PELAJARAN MALAYSIA

FIZIK Kertas 1 1 Jam 15 Minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

1. 2.

Kertas soalan ini adalah dalam dwibahasa. Soalan dalam bahasa Inggeris mendahului soalan yang sepadan dalam bahasa Melayu. INFORMATION FOR CANDIDATES MA KLUM AT UNTUK UNTUK CALON CALON

1. 2. 3. 4.

This question paper consist of 50 questions. Kertas soalan ini mengandungi 50 soalan. Answer all questions. Jawab semua soalan. The diagrams in the questions provided are not n ot drawn to scale unless stated. Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan. You may use non-programmable scientific calculator. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogramkan.

Kertas ini mengandungi 32 halaman bercetak 2012 Hak Cipta BPSBPSK 4531/1 © 2012 Hak

[L ih at H alaman Se Sebelah belah

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The following information may be useful. The symbols have their usual meaning . Maklumat berikut mungkin berfaedah. Simbol-simbol menpunyai makna yang biasa.

1. 2.

a = v - u t 2 2 v = u + 2as

3.

s = ut + ½ at

4.

16

Power, P = energy time Kuasa, P = tenaga masa

17.

1 = f

1 u

18.

λ =

ax D

2

momentum = mv momentum = mv

+

1 v

5.

F = ma

6.

Kinetic energy = ½ mv 2 Tenaga kinetik = ½ mv

19.

n = sin i sin r

7.

Potential energy = mgh Tenaga keupayaan = mgh

20.

n = real depth apparent depth

8.

Elastic potential energy = 1/2 Fx Tenaga keupayaan kenyal = 1/2 Fx

9.

ρ=m V

10.

11.

2

Pressure, P = hρg hρg Tekanan, P = hρg Pressure, P = F A Tekanan, P = F A

12.

Heat, Q = mcӨ Haba, Q = mcӨ

13.

pV = constant T pV = pemalar T

n = dalam nyata dalam ketara 21

Q = It

22

V = IR

23

Power, P = IV Kuasa, P = IV

24.

Ns = N p

25.

Efficiency = Is Vs x 100% I p V p Kecekapan = I s V s x 100% I p V p

26

g = 10 m s

Vs V p

-2

2

14

E = mc

15

v = f λ

4531/1 © 2012 Hak 2012 Hak Cipta BPSBPSK http://www.chngtuition.blogspot.com

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The following information may be useful. The symbols have their usual meaning . Maklumat berikut mungkin berfaedah. Simbol-simbol menpunyai makna yang biasa.

1. 2.

a = v - u t 2 2 v = u + 2as

3.

s = ut + ½ at

4.

16

Power, P = energy time Kuasa, P = tenaga masa

17.

1 = f

1 u

18.

λ =

ax D

2

momentum = mv momentum = mv

+

1 v

5.

F = ma

6.

Kinetic energy = ½ mv 2 Tenaga kinetik = ½ mv

19.

n = sin i sin r

7.

Potential energy = mgh Tenaga keupayaan = mgh

20.

n = real depth apparent depth

8.

Elastic potential energy = 1/2 Fx Tenaga keupayaan kenyal = 1/2 Fx

9.

ρ=m V

10.

11.

2

Pressure, P = hρg hρg Tekanan, P = hρg Pressure, P = F A Tekanan, P = F A

12.

Heat, Q = mcӨ Haba, Q = mcӨ

13.

pV = constant T pV = pemalar T

n = dalam nyata dalam ketara 21

Q = It

22

V = IR

23

Power, P = IV Kuasa, P = IV

24.

Ns = N p

25.

Efficiency = Is Vs x 100% I p V p Kecekapan = I s V s x 100% I p V p

26

g = 10 m s

Vs V p

-2

2

14

E = mc

15

v = f λ

4531/1 © 2012 Hak 2012 Hak Cipta BPSBPSK http://www.chngtuition.blogspot.com

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Which of the following is a derived quantity? Yang manakah yang berikut adalah kuantiti terbitan? A B C D

2.

3

Mass Jisim Temperature Suhu Electric Charge Cas elektrik Electric current Arus elektrik

Diagram 1 shows speed limit 50 kmh-1? Rajah 1 menunjukkan menunjukkan had kelajuan 50 kmj -1? What is speed limit in ms -1? Berapakah had kelajuan dalam ms -1?

Diagram 1 Rajah 1 A B C D

833.33 13.89 1.389 0.014

4531/1 © 2012 Hak 2012 Hak Cipta BPSBPSK

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Which of the shooting marks on the target show the highest precision? Kesan tembakan pada papan sasar yang manakah menunjukkan kepersisan yang paling inggi ? A

B

C

D

Diagram 2 shows a boy sliding down from P to Q. Rajah 2 menunjukkan seorang budak menggelongsor turun daripada P ke Q.

Diagram 2 Rajah 2 What is the speed of the boy at Q? Berapakah laju budak itu di Q? A B C D

4.47 ms -1 6.32 ms -1 20.00 ms-1 40.00 ms-1

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Diagram 3 shows a displacement, s - time, t graph of an object. Rajah 3 menunjukkan suatu graf sesaran - masa, t bagi suatu objek.

Diagram 3 Rajah 3 Which of the following is true to describe the motion of the object? Yang manakah antara berikut adalah benar untuk menerangkan gerakan objek itu? Displacement Sesaran

6.

Velocity Halaju

A

Increases uniformly Bertambah seragam

Zero Sifar

B


Uniform Seragam

C

Uniform Seragam


D



Diagram 4 shows a man jumping out of a boat onto a jetty. He noticed that the boat moves backwards as he jumped. Rajah 4 menunjukkan seorang lelaki melompat keluar sebuah bot ke atas jeti. Dia mendapati bot itu bergerak ke belakang semasa dia melompat.

Diagram 4 Rajah 4 Which of the following physics concepts is best to explain the situation in Diagram 4?


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Yang manakah antara konsep-konsep fizik berikut adalah terbaik untuk menerangkan situasi dalam Rajah 4?

7.

A

Inertia Inersia

B

Impulsive force Daya impuls

C

Principle of conservation of energy Prinsip keabadian tenaga

D

Principle of conservation of momentum Prinsip keabadian momentum

A man is standing on a weighing machine inside a lift which moves with a constant velocity. Seorang lelaki sedang berdiri di atas sebuah mesin penimbang di dalam sebuah lift yang bergerak dengan halaju seragam. The reading of the weighing machine is Bacaan mesin penimbang adalah A

zero sifar

B

less than the weight of the man kurang daripada berat lelaki itu

C

equal to the weight of the man sama dengan berat lelaki itu

D

more than the weight of the man lebih daripada berat lelaki itu


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Diagram 5 shows a force 30 N is pulling an object of mass 2 kg through a smooth pulley. Rajah 5 menunjukkan suatu daya 30 N sedang menarik sebuah objek berjisim 2 kg melalui sebuah takal yang licin.

Diagram 5 Rajah 5 What is the net force applied to the object? Berapakah daya bersih yang dikenakan ke atas objek itu? A B C D 9.

10 N 28 N 30 N 50 N

Diagram 6 shows a hammer of mass 0.5 kg is lifted vertically at height 120 cm. Rajah 6 menunjukkan sebuah penukul berjisim 0.5 kg diangkat tegak pada ketinggian 120 cm.

Diagram 6 Rajah 6


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What is the work done to lift the hammer? Berapakah kerja yang dilakukan untuk mengangkat penukul itu? A B C D 10.

0.6 J 6.0 J 60.0 J 600.0 J

Diagram 7 shows a F-x graph of two springs, K and L. Rajah 7 menunjukkan satu graf F-x bagi dua spring, K dan L.

Diagram 7 Rajah 7 Which of the following statements is true? Yang manakah antara pernyataan-pernyataan berikut adalah benar ?

A

K is stiffer than L K lebih keras daripada L

B

K is thicker than L K adalah lebih tebal daripada L

C

K has bigger elastic potential energy K mempunyai tenaga keupayaan kenyal yang lebih besar

D

K will extend more when an equal force is exerted K akan lebih meregang apabila daya yang sama dikenakan


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Diagram 8 shows two cyclists during a race. Rajah 8 menunjukkan dua orang penunggang basikal semasa perlumbaan.

Diagram 8 Rajah 8 Which of following is NOT a method to reduce air resistance? Yang manakah antara berikut adalah BUKAN satu kaedah untuk mengurangkan rintangan udara?

12.

A

Wearing fit attire Memakai pakaian ketat

B

Using big size wheel Menggunakan saiz tayar yang besar

C

Wearing aerodynamic shape helmet Memakai topi keledar berbentuk aerodinamik

D

Cyclist bends his body Penunggang basikal membongkokkan tubuhnya

Diagram 9 shows a simple mercury barometer. The barometer reading is h cm of mercury. Rajah 9 menunjukkan sebuah barometer merkuri ringkas. Bacaan barometer ialah h cm merkuri.

Diagram 9


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Rajah 9 What is the physical quantity measured by h? Apakah kuantiti fizikal yang diukur oleh h? A Gas pressure Tekanan gas B Mercury pressure Tekanan Merkuri C Atmospheric pressure Tekanan atmosfera 13.

Diagram 10 shows two identical containers containing liquid R and liquid S. The horizontal distance of the spurts for both liquids is the same. Rajah 10 menunjukkan dua bekas yang serupa mengandungi cecair R dan cecair S. Jarak ufuk pancutan bagi kedua-dua cecair itu adalah sama.

Diagram 10 Rajah 10 Which of the following is the correct comparison between the density of liquid R and liquid S? Antara pernyataan berikut yang manakah benar mengenai perbandingan antara ketumpatan cecair R dan cecair S? A

Density of liquid R = density of liquid S Ketumpatan cecair R = ketumpatan S

B

Density of liquid R > density of liquid S Ketumpatan cecair R > ketumpatan S

C

Density of liquid R < density of liquid S Ketumpatan cecair R < ketumpatan S


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Diagram 11 shows a hydraulic compressing machine. Rajah 11 menunjukkan sebuah mesin pemampat .

F 1

F 2

Diagram 11 Rajah 11 Which comparison is true about the forces F 1 and F 2? Perbandingan manakah betul mengenai daya-daya F 1 dan F 2? A B C

15.

F 1 = F 2 F 1 > F 2 F 1 < F 2

Diagram 12 shows an oil drum of volume V floating with

3 4

of its volume submerged

under water. Rajah 12 menunjukkan sebuah tong minyak berisipadu V sedang terapung dengan

3 4

daripada isipadunya tenggelam di bawah air.

Diagram 12 Rajah 12 If the density of water is ρ, the buoyant force acting on the oil drum is Jika ketumpatan air ialah ρ, daya julangan yang bertindak ke atas tong minyak i alah A B C

1 4 3 4

V  g V  g

Vρg


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D Vρ Diagram 13 shows three cuboids P, Q and R floating on water surface. Rajah 13 menunjukkan tiga kuboid P, Q dan R yang terapung di atas permukaan air.

Diagram 13 Rajah 13 Which of the following is the descending order for the density of object P, Q and R ? Antara yang berikut, manakah ialah ketumpatan objek P, Q dan R dalam urutan menurun? A Q = R = P B P > Q > R C R > P > Q D P > R > Q 17.

Which of the following statements is true about Pascal’s Principle? Antara pernyataan berikut, yang manakah benar mengenai Prinsip Pascal? A

Force is applied to an enclosed fluid, the pressure will be transmitted equally in all direction. Daya dikenakan kepada sistem bendalir tertutup, tekanan akan dipindahkan secara seragam kesemua arah.

B

Pressure is applied to an enclosed fluid, the force will be transmitted equally in all direction. Tekanan dikenakan kepada sistem bendalir tertutup, daya akan dipindahkan secara seragam kesemua arah.

C

Pressure is applied to an enclosed fluid, the pressure will be transmitted directly proportional to an area. Tekanan dikenakan kepada sistem bendalir tertutup, tekanan akan dipindahkan secara berkadar terus dengan luas permukaan.

D

Force is applied to an enclosed fluid, the pressure will be transmitted inversely proportional to an area. Daya dikenakan kepada sistem bendalir tertutup, tekanan akan dipindahkan secara berkadar sonsang dengan luas permukaan.


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Which diagram shows the correct liquid level in the U-tube? Rajah manakah menunjukkan aras cecair yang betul di dalam tiub-U? A

B

Air flow liran udara


C

D


19.


Diagram 14 shows cold milk being poured into hot coffee. Rajah 14 menunjukkan susu sejuk dituangkan ke dalam kopi panas.

Diagram 14 Rajah 14 Which statement is correct when the mixture is at the thermal equillibrium? Pernyataan manakah yang betul apabila campuran itu berada dalam keadaan keseimbangan terma? A

Temperature of mixture is lower than cold milk Suhu campuran itu lebih rendah daripada suhu susu sejuk

B

Temperature of mixture is higher than hot coffee Suhu campuran itu lebih tinggi daripada suhu kopi panas


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C

Net rate of heat transfer of the cold milk is lower than the hot coffee Kadar pemindahan haba susu sejuk adalah lebih rendah daripada kopi panas

D

Net rate of heat transfer between the cold milk and the hot coffee is zero Kadar pemindahan haba bersih antara susu sejuk dan kopi panas adalah sifar

Diagrams 15 shows a lead block, an iron block and aluminium block. All the blocks has the same mass and same initial temperature and let to be cold. All the blocks have different specific heat capacity. After 15 minutes the temperature of the blocks are recorded. Rajah 15 menunjukkan satu blok plumbum, satu blok besi dan satu blok aluminium. Semua blok itu mempunyai jisim dan suhu awal yang sama dan dibiarkan menyejuk. Ketiga-tiga logam itu mempunyai muatan haba tentu, c yang berbeza. Selepas 15 minit suhu ketigatiga logam itu di rekodkan.

Diagram 15 Rajah 15 Which comparison is correct about the temperature of lead block, θP , iron block, θ Q , and aluminium block, θ R is correct? Perbandingan yang manakah betul tentang suhu bagi blok plumbum, θ P , blok besi, θ Q , dan blok aluminium, θ R ? A

θP > θ Q > θ R

B

θ Q > θ P > θ R

C

θ R > θ P > θ Q

D

θ R > θ Q > θ P


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5 400 J of heat is used to increase the temperature of 0.8 kg metal block. The specific heat capacity of the metal block is 450 J kg -1 oC-1. What is the rise in temperature of the metal block ? 5 400 J haba digunakan untuk meningkatkan suhu sebuah blok logam berjisim 0.8 kg.Muatan haba tentu blok logam itu ialah 450 J kg -1 oC -1 . Berapakah peningkatan suhu blok logam itu? A

9.6 C

B

12.0 C

C

15.0 C

D

360.0 C



 



Diagram 16 shows the heating curve of a substance. Rajah 16 menunjukkan lengkung pemanasan suatu bahan.

Diagram 16 Rajah 16 Which statement is correct about the heat absorbed by the substance? Pernyataan manakah betul tentang haba yang diserap oleh bahan itu? Stages

Statement

Peringkat

Pernyataan

A

PQ

B

QR

C

RS

D

ST

It strengthen the bonds between the substance molecules Menguatkan ikatan antara molekul bahan It breaks the bonds between the substance molecules Memutuskan ikatan antara molekul bahan It decreases the kinetic energy of the substance molecules Menurunkan tenaga kinetik molekul bahan It weakens the forces between the substance molecules Melemahkan daya antara molekul bahan


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After a long journey the air pressure in a car tyre is increased. This can be explain by Selepas satu perjalanan yang jauh, tekanan udara di dalam kereta akan bertambah. Ini dapat diterangkan oleh Boyle’s law. Hukum Boyle. Charles’ law. Hukum Charles. Pressure’s law. Hukum Tekanan.

A B C

24.

16

Diagram 17 shows student P and student Q standing in front of a plane mirror at a distance of 3.0 m and 7.0 m respectively. Rajah 17 menunjukkan pelajar P dan pelajar Q berdiri di hadapan sebuah cermin satah pada jarak 3.0 m dan 7.0 m masing-masing.

Diagram 17 Rajah 17 What is the distance between student Q and the image s tudent P? Apakah jarak antara pelajar Q dengan imej pelajar P? A B C D

4.0 m 10.0 m 13.0 m 14.0 m


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Diagram 18 shows a layer of oil floating on water. Which light ray in Diagram18 is correct? Rajah 18 menunjukkan satu lapisan minyak terapung di atas air. Sinar manakah dalam Rajah 18 yang betul?

Diagram 18 Rajah 18

26.

Diagram 19 shows the formation of the image of an object by a convex lens. Rajah 19 menunjukkan pembentukan imej satu objek oleh satu kanta cembung.

Diagram 19 Rajah 19 What is focal length of the lens? Berapakah jarak fokus bagi kanta? A B C D

0.2 cm 1.2 cm 5.0 cm 6.0 cm


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Diagram 20 shows a ray diagram of a concave mirror. Rajah 20 menunjukkan rajah sinar bagi satu cermin cekung.

P C

F

Diagram 20 Rajah 20 Which of the following shows the correct relationship between the object distance, u and the focal length, f? Yang manakah menunjukkan hubungan yang betul di antara jarak objek, u dan panjang fokus, f? A B C D 28.

u>f u=f u > 2f u = 2f

Which pair of lenses can be used to construct a telescope? Pasangan kanta yang manakah boleh digunakan untuk membina teleskop? A

Two concave lenses with focal lengths of 6 cm and 9 cm Dua kanta cekung dengan jarak fokus 6 cm dan 9 cm

B

Two convex lenses with focal lengths of 10 cm and 80 cm Dua kanta cembung dengan jarak fokus 10 cm dan 80 cm

C

Two concave lenses with focal lengths of 10 cm and 80 cm Dua kanta cekung dengan jarak fokus 10 cm dan 80 cm

D

A convex lens with focal lengths of 6 cm and a concave with focal length 9 cm Kanta cembung dengan jarak-jarak focus 6 cm dank anta cekung dengan jarak fokus 9 cm


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Diagram 21 shows the displacement- time graph of a wave. Rajah 21 menunjukkan graf sesaran – masa bagi satu gelombang.

Diagram 21 Rajah 21 What is the frequency of the wave ? Berapakah frekuensi gelombang ? A 8 Hz. B ⅛ Hz C 4 Hz. D ¼ Hz

30.

Which diagram shows an example of a longitudinal wave ? Rajah yang manakah menunjukkan contoh gelombang membujur ? A

Light traveling from a lamp to a screen. Cahaya merambat dari sebuah lampu ke skrin


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B

A water ripple caused by a dipper moving up and down Riak gelombang air dihasilkan oleh pencelup bergetar atas dan bawah.

C

A spring pushed backwards and forwards Spring digerakkan ke depan dan ke belakang

D

A spring moves up and down Spring digerakkan ke atas dan ke bawah

Diagram 22 shows water waves change direction when they move from shallow water region to deep water region. Rajah 22 menunjukkan arah gelombang air berubah apabila merambat dari kawasan air cetek ke kawasan air dalam.

Diagram 22 Rajah 22 What is the name of this phenomena ? Apakah nama fenomena ini ?


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33.

21 A

refraction pembiasan

B

reflection pantulan

C

diffraction belauan

D

interference interferens

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Diagram 23 shows an inteference pattern of water waves from two coherent sources P and Q. Rajah 23 menunjukkan corak interferens gelombang air dari dua sumber koheren P dan Q. Which point is the node ? Titik yang manakah adalah nod ?

Diagram 23 Rajah 23 A system is oscillated at a frequency equivalent to its natural frequency by an external force. Suatu sistem diayunkan pada satu frekuensi yang setara dengan frekuensi aslinya oleh satu daya luar. This phenomenon is called Fenomena ini dikenali sebagai A B C D

Damping Pelembapan Resonance Resonans Rectification Rektifikasi Pitching Kelangsingan


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Radio waves , visible light and X- rays are all part of the electromagnetic spectrum. What is the correct order of wavelength in ascending order ? Gelombang radio , cahaya nampak dan sinar X adalah sebahagian dari spektrum electromagnet. Apakah susunan yang betul bagi panjang gelombang dalam tertib menaik ? Shortest Paling pendek A B C D

longest paling panjang

Radio waves Gelombang radio Radio waves Gelombang radio X- rays Sinar X

Visible light Cahaya nampak X-rays Sinar X Radio waves Gelombang radio

X-ray Sinar X Visible light Cahaya nampak Visible light Cahaya nampak

X- rays Sinar X

Visible light Cahaya nampak

Radio waves Gelombang radio

35. Diagram 24.1 shows a connection of a simple circuit. The ammeter reading is 0.60 A and the voltmeter reading is 6.0 V. A second identical resistor is now connected in parallel with the first resistor, as shown in Diagram 24.2. Rajah 24.1 menunjukkan sambungan bagi satu litar ringkas. Bacaan ammeter adalah 0.60 A dan bacaan voltmeter adalah 6.0 V. Perintang kedua yang se rupa disambung secara selari dengan perintang pertama tadi, seperti dalam Rajah 24.2.

Diagram 24.1

Diagram 24.2

Rajah 24.1

Rajah 24.2

What are the ammeter and voltmeter readings in t he circuit shown in Diagram 24.2?


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Berapakah bacaan ammeter dan voltmeter dalam Rajah 24.2?

Ammeter reading Bacaan Ammeter

Voltmeter reading Bacaan Voltmeter

1.20 1.20

12.0 6.0

0.30 0.30

12.0 12.0

A B C D

36.

Diagram 25 is a graph which shows the relationship between the potential difference with current of four differenct conductor, J,K,L and M. Rajah 25 ialah graf yang menunjukkan hubungan antara beza keupayaan dengan arus bagi empat konduktor yang berlainan jenis J,K,L dan M.

Diagram 25 Rajah 25 Which conductor has the highest resistance? Konduktor yang manakah mempunyai rintangan yang paling tinggi? A B C D

J K L M


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In the following circuits, all the resistors and lamps are similar. In which circuit is the lamp the brightest? Tiap perintang dan lampu dalam litar-litar berikut adalah serupa. Dalam litar manakah lampu menyala dengan paling cerah?

A

B

C

D

A dry cell has e.m.f of 1.5 V. When it is connected to an external resistor, the potential difference is 1.3 V and the current is 0.2 A. Satu selkering mempunyai d.g.e 1.5 V. Bila disambung kepada perintang luar, beza keupayaan ialah 1.3 V dan arus ialah 0.2 V. What is value of the internal resistance of the dry cell? Berapakah rintangan dalam sel kering itu ? A B C D

0.2 Ω 6.5 Ω 1.0 Ω 7.5 Ω


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39. Diagram 26 shows a right hand which represents the Fleming Right-Hand Rule.

Rajah 26 menunjukkan tangan kanan yang mewakili Petua Tangan Kanan Fleming.

X

Diagram 26 Rajah 26 X represent the X mewakili A

Motion Gerakan

B

Current Arus

C

Magnetic field Medan magnet

D

Potential difference Beza keupayaan

40. Table 1 shows the characteristic for transmission of electricity. Which of the following is most suitable for transmission of electrical by National Grid Network?

Jadual 1 menunjukkan ciri-ciri penghantaran elektrik. Yang manakah berikut paling sesuai untuk penghantaran elektrik oleh Sistem Rangkaian Grid Nasional.

A B C D

Type of current

Magnitude of current

Magnitude of voltage

Jenis Ar us

M agni tud arus

M agnitud voltan

Direct current

Low

Very high

Arus terus

Rendah

Sangat tinggi

Alternating current

Very high

Low

Arus ulangalik

Sangat tinggi

Rendah

Direct current

Very high

Low

Arus terus

Sangat tinggi

Rendah

Alternating current

Low

Very high

Arus ulangalik

Rendah

Sangat tinggi

Table 1 Jadual 1


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An ideal transformer has 400 turns on the primary coil and 580 turns on the secondary coil. When a 240 V supply is acted on the primary coil, an 8 A current flows through it. What is the value of the output current at the secondary coil? Satu transformer yang ideal mempunyai 400 lilitan pada gegelung primer dan 580 lilitan pada gegelung sekunder. Apabila satu bekalan 240 V dikenakan pada gelung primer, arus 8 A mengalir melaluinya. Berapakah nilai arus yang mengalir pada gegelung sekunder? A 1.8 A B 2.6 A C 4.3 A D 5.5 A

42.

What is the direction of motion of the copper rod when the current flows in the circuit in Diagram 27? Apakah arah gerakan rod kuprum bila arus mengalir dalam litar pada Rajah 27?

Diagram 27 Rajah 27


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Diagram 30 shows a selonoid and a soft ion bar. Rajah 30 menunjukkan solenoid dan bar besi lembut. Soft iron bar switch Insulated wire

DC supply

Diagram 28 Rajah 28 How would the magnetic field around the solenoid change if the soft iron bar is move slowly into the solenoid? Apakah perubahan yang berlaku kepada kekuatan medan magnet pada solenoid jika bar besi lembut digerakkan perlahan-lahan kedalam solenoid? A Decrease in strength

Kekuatan berkurang B Increase the strength

Kekuatan bertambah C No change

Tiada perubahan 44. Diagram 29 shows a circuit connected to the cathode ray oscilloscope (CRO). Rajah 29 menunjukkan satu litar yang disambungkan kepada osiloskop sinar katod (OSK).

Diagram 29 Rajah 29


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Which of the following traces displayed on the CRO is correct when diode P is reversed ? Antara surihan berikut, yang manakah surihan yang betul dipaparkan pada OSK apabila diod P disongsangkan ?

A

B

C

D


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45. Which of the following circuits does not lights up the bulb? Antara litar berikut, yang manakah tidak akan menyalakan mentol? A C

B D

46.

Which of the following is true regarding cathode rays? Antara berikut yang manakah benar tentang sinar katod? A

It is positively charged. Ia bercas positive

B

It has same characteristics as beta rays. Ia mempunyai sifat yang sama seperti sinar beta.

C

It travels at the same speed as gamma rays. Ia merambat pada laju sama dengan sinar gamma.

D

It deflects towards south pole of a magnetic bar. Ia terpesong ke kutub selatan suatu bar magnet.


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Diagram 30.1 shows the combination of three logic gates. Rajah 30.1 menunjukkan kombinasi tiga get logik. Diagram 30.2 shows the input signals P and Q . Rajah 30.2 menunjukkan isyarat input P dan Q

Voltage [voltan]

[masa]

Voltage [voltan]

[masa] Diagram 30.1 Rajah 30.1

Diagram 30.2 Rajah 30.2

Which of the following shows the output signal X? Antara berikut yang manakah menunjukkan isyarat output X?


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48.

31

A nuclide X is represented by Satu nukleus X dihasilkan oleh kemudian satu zarah β. What is the Nuclide X? Apakah nuklid X?

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. It emits one α particle and then one β particle. . Nukleus Z mengeluarkan satu zarah α dan

A

C 49.

The diagram 31 shows the paths of three types of radioactive X, Y and Z in a uniform magnetic field. Gambarajah 31menunjukkan lintasan tiga jenis sinar radioaktif X, Y dan Z didalam medan magnet yang seragam. Y X

Z

Diagram 31 Rajah 31 What is the name of the radioactive X, Y and Z? Apakah nama radioaktif X, Y dan Z?

A

X α

Y β

Z γ

B

α

γ

β

C

β

α

γ

D

β

γ

α


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Which graph shows how the count rate for radioactive decay varies with time? Yang manakah graf yang menunjukkan bagaimana bilangan kadar bagi pereputan radioaktif yang berubah dengan masa? A

Count Rate / Pembilang kadar 80

40 20

Time /masa

B


40 20

Time /masa

C

Count Rate / Pembilang kadar 80 40 20 Time /masa D


40 20 Time /masa

END OF QUESTION PAPER KERTAS SOALAN TAMAT


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SULIT Fizik Kertas 1 Ogos 2013 2 ½ Jam

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NAMA:...................................................................

Tingkatan :..............



JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU Arahan: 1.

Tulis nama dan tingkatan anda pada ruang yang disediakan.

Untuk Kegunaan Pemeriksa Bahagian

Soalan

Markah

1

2. Kertas soalan ini adalah dalam dwibahasa.

2 3.

Calon dibenarkan menjawab keseluruhan atau sebahagian soalan sama ada dalam bahasa Inggeris atau bahasa Melayu.

3 4 A

4. Jawapan kepada Bahagian A hendaklah ditulis dalam ruang yang disediakan dalam kertas soalan.

5 6 7 8

5. Rajah tidak dilukis mengikut skala kecuali dinyatakan.

9 6. Markah maksimum yang diperuntukkan ditunjukkan kurungan pada hujung tiap-tiap soalan atau

dalam

B

11 C

7. Penggunaan kalkulator saintifik yang tidak boleh diprogramkan adalah dibenarkan.

10 12

Jumlah Besar

Kertas ini mengandungi 27 halaman bercetak 4531/2 © 2013 Hak Cipta BPSBPSK

[L ih at Hal aman Sebelah

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The following information may be useful. The symbols have their usual meaning. Maklumat berikut mungkin berfaedah. Simbol-simbol mempunyai makna yang biasa.

1.

a =

16.

2.

v2 = u2 + 2as

3.

s = ut

+ ½ at2

17.

V = IR

4.

Momentum = mv

18.

Power, P = IV Kuasa

5.

F = ma

19.

6.

Kinetic energ = ½ mv2

20.

Gravitational potential energy = mgh

=

Kuasa, P =

Tenaga kinetik 7.

Power, P

Efficiency = Kecekapan

21.

Tenaga keupayaan graviti 8.

Elastic potential energy = ½ Fx

22.

n =

23.

n=

Tenaga keupayaan kenyal 9.

ρ=

10.

Pressure, P = hg

n =

Tekanan 11.

Pressure, P =

24.

λ =

25.

Q= It

26.

E = I (R + r)

27.

eV = ½ mv2

28.

g = 10 ms -2

Tekanan 12.

13.

Heat, Q = mc Haba = Constant ( pemalar)

14.

E = m c2

15.

v= f 


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SECTION A Bahagian A

[60 marks] [60 markah] Answer all questions in this section Jawab semua soalan dalam bahagian ini. 1

Diagram 1.1 shows a vernier callipers. Rajah 1.1 menunjukkan sebuah angkup vernier. X

Diagram 1.1 Rajah 1.1 (a)

(b)

Name the physical quantity measured by the vernier callipers. Namakan kuantiti fizik yang diukur oleh angkup vernier. ............................................................................................................................... [1 mark] [1 markah] Name the part labelled X. Namakan bahagian yang berlabel X. ............................................................................................................................... [1 mark] [1 markah]

(c)

State the function of X. Nyatakan fungsi X. ............................................................................................................................... [1 mark] [1 markah]


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What is the reading of a vernier callipers shown in Diagram 1.2? Berapakah bacaan yang ditunjukkan oleh angkup vernier dalam Rajah 1.2?

Diagram 1.2 Rajah 1.2 ............................................................................................................................... [1 mark] [1 markah] 2.

Diagram 2 shows a worker lifting a load of mass 10 kg using a smooth pulley system. The worker applies a force of 110 N to pull up the load at a distance of 0.5 m. Rajah 2 menunjukkan seorang pekerja mengangkat beban berjisim 10 kg dengan menggunakan sistem takal yang licin. Pekerja itu menggunakan daya 110 N untuk menarik beban keatas pada jarak 0.5 m.

Diagram 2 Rajah 2 (a)

(b)

What is meant by work? Apakah yang dimaksudkan dengan kerja? …………………………………………………………………………….......… [ 1 mark] [1 markah] Calculate Hitungkan (i) the work done by the worker kerja yang dilakukan oleh pekerja tersebut

[ 2 marks] [2 markah]


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(ii)

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the acceleration of the load pecutan beban itu. [ 2 marks] [2 markah]


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Diagram 3.1 shows the structure of a cathode ray oscilloscope (CRO). Rajah 3.1 menunjukkan struktur sebuah osiloskop sinar katod (OSK).


State the process involved in producing electrons from electrode X. Nyatakan proses yang terlibat dalam penghasilan elektron daripada elektrod X. ……………………………..……………………………………………………….. [1 mark ] [1 markah]

(b)

Describe the type of motion of the electron moving from Y to Z Nyatakan jenis gerakan bagi elektron yang bergerak dari Y ke Z.

(c)

…………………………..………………………………………………………….. [1 mark ] [1 markah] A student uses the CRO to study the output voltage from a signal generator. Diagram 3.2 shows the trace displaced on the scre en and the settings of the CRO. Seorang pelajar menggunakan OSK itu untuk mengkaji voltan output daripada sebuah penjana isyarat. Rajah 3.2 menunjukkan surih yang dihasilkan pada skrin dan pelarasan OSK itu.



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Determine the peak voltage of the signal generator. Tentukan voltan puncak bagi penjana isyarat itu.

[1 mark ] [1 markah] (ii)

Determine the frequency of the signal generator. Tentukan frekuensi bagi penjana isyarat itu.

[2 marks] [2 markah] (iii) Sketch the new trace in Diagram 3.3 if the time-base setting is now set at 0.01 s / div. Lakarkan surih baru dalam Rajah 3.3 jika dasar-masa ditetapkan pada 0.01 s / bhg.

4 0.01 s / div

V / div

Diagram 3.3 Rajah 3.3 [1 mark ] [1 markah]


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Diagram 4.1 shows a metal block of mass 1 kg at initial temperature 30 C is heated by 12 V, 48 W immersion heater for 15 minutes. Rajah 4.1 menunjukkan sebuah blok logam berjisim 1 kg pada suhu awal 30 0C dipanaskan oleh pemanas rendam 12 V, 48 W selama 15 minit.


What is meant by specific heat capacity? Apakah yang dimaksudkan dengan muatan haba tentu? ............................................................................................................................... [1 mark] [1 markah]

(b)

If the final temperature is 90 0C, calculate the specific heat capacity of metal block. Jika suhu akhir ialah 90 0C , hitung muatan haba tentu bagi blok logam itu.

[2 marks] [2 markah] (c)

Diagram 4.2 shows a phenomenon which occur in our daily life. Rajah 4.2 menunjukkan satu fenomena yang berlaku dalam kehidupan seharian kita.



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Using the physics concept, explain how the phenomenon occurs. Menggunakan konsep fizik,terangkan bagaimana fenomena ini berlaku. …………………………………………………………………………... …………………………………………………………………………... …………………………………………………………………………... [3 marks] [3 markah]

(ii)

Name the phenomenon that occurs Namakan fenomena yang berlaku …………………………………………………………………………... [ 1 mark] [1 markah]

5

Diagram 5.1, Diagram 5.2 and Diagram 5.3 show identical metal blocks of mass 40 g which are in three different situations. Rajah 5.1, Rajah 5.2 dan Rajah 5.3 menunjukkan blok logam yang serupa berjisim 4 0 g berada dalam tiga situasi yang berbeza.





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Based on Diagram 5.1 and Diagram 5.2: Berdasarkan Rajah 5.1 dan Rajah 5.2: (i)

Compare the reading of the spring balances. Bandingkan bacaan neraca-neraca spring itu. ………………………………………………………………………………... [1 mark] [1 markah]

(ii)

State the physical quantity that causes the difference in the spring balance reading. Nyatakan kuantiti fizik yang menyebabkan perbezaan dalam bacaan neraca spring.

………………………………………………………………………………... [1 mark] [1 markah] (b) Based on Diagram 5.2 and Diagram 5.3: Berdasarkan Rajah 5.2 dan Rajah 5.3: (i)

Compare the reading of the spring balances. Bandingkan bacaan neraca-neraca spring itu.

……………………………………………………………………………….... [1 mark] [1 markah] (ii) Compare the density of the water to the density of the cooking oil. Bandingkan ketumpatan air dengan ketumpatan minyak masak. ……………………………………………………………………………….... [1 mark] [1 markah] (iii) State the relationship between the density of liquid and the physical quantity stated in your answer in 5(a)(ii). Nyatakan hubungan antara ketumpatan suatu cecair dengan kuantiti fizik yang dinyatakan dalam jawapan anda dalam 5(a)(ii). ………………………………………………………………………………… [1 mark] [1 markah]


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Compare the pressure at point X and point Y in Diagram 5.2. Explain your answer. Bandingkan tekanan di titik X dan titik Y dalam Rajah 5.2. Jelaskan jawapan anda. ………………………………………………………………………………… ………………………………………………………………………………… [2 marks] [2 markah]

(ii)

Write an equation involving difference in pressure, P, surface area of the object, A and the physical quantity stated in 5a(ii). Tuliskan satu persamaan melibatkan perbezaan tekanan, P, luas keratan rentas bagi objek, A dan kuantiti fizik yang dinyatakan di 5 a(ii). ………………………………………………………………………………… [1 mark] [1 markah]

6.

Diagram 6.1 and Diagram 6.2 show two arrangements of the apparatus in the laboratory to study the interference of sound waves. Rajah 6.1 dan Rajah 6.2 menunjukkan dua susunan radas dalam makmal bagi mengkaji interferens gelombang bunyi.



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What type of wave is the sound wave? Apakah jenis gelombang bagi gelombang bunyi? …………………………………………………………………………….......… [1 mark] [1 markah]

(b)

Explain how loud sound and soft sound occurs. Terangkan bagaimana bunyi kuat dan bunyi perlahan berlaku. ………………………………………………………………………………....... ……………………………………………………………………………........... [2 marks] [2 markah]

(c)

Observe Diagram 6.1 and Diagram 6.2. Perhatikan Rajah 6.1 dan Rajah 6.2. (i)

Compare the distance between the two loud speakers, a. Bandingkan jarak antara dua pembesar suara. ………………………………………………………………................... [1 mark] [1 markah]


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(ii)

(iii)

(d)

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Compare the distance between two consecutive loud sounds, x. Bandingkan jarak antara dua bunyi kuat berturutan. ………………………………………………………………................... [1 mark] [1 markah] Relate a and x. Hubungkaitkan a dan x.

………………………………………………………………................... [1 mark] [1 markah] State two physical quantities that should be remain constant throughout the experiment. Nyatakan dua kuantiti fizik yang mesti kekal malar sepanjang eksperimen. (i)

…………………………………………………………......................….

(ii)

……………………………………………………………....................... [2 marks]

Diagram 7.1 shows an image is formed by a curved mirror. Rajah 7.1 menunjukkan satu imej yang dibentuk oleh satu cermin melengkung.


Name the light phenomenon occurs. Namakan fenomena cahaya yang berlaku. ................................................................................................................................ [1 mark] [1 markah


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Complete the ray diagram in Diagram 7.2 to show the formation of image. Lengkapkan gambarajah gambarajah sinar dalam Rajah 7.2 untuk menunjukkan pembentukan imej.

Diagram 7.2 Rajah 7.2 [3 marks] [3 markah] markah] (ii)

State one characteristic of the image formed. Nyatakan satu ciri ciri bagi imej yang terbentuk. .......................................... ................................................................ ............................................ .............................................. ............................. ..... [1 mark] [1 markah] markah]

(c)

Explain how to use a concave mirror to heat up water in a container using solar energy. Terangkan bagaimana menggunakan menggunakan cermin cekung untuk memanaskan air di dalam sebuah bekas menggunakan tenaga suria. ......................................... ............................................................... ............................................ ............................................ .............................................. ........................ ......................................... ............................................................... ............................................ ............................................ .............................................. ........................ [2 marks] [2 markah] markah]

4531/2 © 2013 Hak 2013 Hak Cipta BPSBPSK BPSBPSK

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Diagram 7.3 shows a microscope. You are given two convex lenses P and Q, with focal lengths of 7 cm and 5 cm respectively . Both of the lenses are used to build a microscope. Rajah 7.3 menunjukkan menunjukkan satu mikroskop. Anda diberi dua dua kanta cembung P dan dan Q dengan jarak fokus 7 cm dan 5 cm masing-masing. Kedua-dua kanta digunakan untuk membina mikroskop.

Diagram 7.3 Rajah 7.3 (i) Based on the two lenses given, state which is suitable to be used as objective lens. Berdasarkan dua kanta cembung cembung yang diberi, nyatakan yang yang manakah sesuai digunakan sebagai kanta objek. ............................................ .................................................................. ............................................ ............................................ ....................................... ................. [1 mark] [1 markah] markah] Reason: Sebab: ............................................ .................................................................. ............................................ ............................................ ...................................... ................ [1 mark] [1 markah] markah] (ii) Name (ii) Name one additional component component that can be used at the microscope to get a clearer image. Namakan satu komponen tambahan yang boleh digunakan pada mikroskop untuk menghasilkan imej yang lebih jelas. ............................................ .................................................................. ............................................ ............................................ ....................................... ................. [1 mark] [1 markah] markah]


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Diagram 8 shows one bulb connected to one dry cell. Rajah 8 menunjukkan menunjukkan satu mentol disambungkan kepada kepada satu sel kering.

Diagram 8 Rajah 8 (a)

(b)

What is meant by the label “9V, 20W ” on the bulb? the bulb? Apakah yang dimaksudkan dimaksudkan dengan label 9 V, 20W pada mentol itu? ............................................ .................................................................. ............................................ .............................................. ....................................... ............... [ 1 mark ] [1 markah] markah] Based on Diagram 8, calculate Berdasarkan Rajah 8 , hitungkan (i)

current flowing through the bulb. arus mengalir melalui mentol.

[2 marks] [2 markah] markah] (ii)

resistance of the filament of the bulb? rintangan bagi filamen mentol tersebut?

[2 marks] [2 markah] markah]


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Table 8.1 shows three different types of filament to be used in bulb in Diagram 8 above. Jadual 8.1 menunjukkan tiga jenis filamen berbeza yang akan digunakan di dalam mentol pada Rajah 8 diatas. Filament Filamen

P Q R

Power supplied to the bulb Kuasa dibekalkan kepada mentol 20Js30Js50Js

Power produced (Light) Kuasa dihasilkan (Cahaya) 15Js28Js43Js

Table 8.1 Jadual 8.1 (i)

(ii)

State the effect of thickness of wire of the filament to the rate of energy loss in the filament. Nyatakan kesan ketebalan dawai filamen terhadap kadar kehilangan tenaga pada filamen. ……………………………………………………………………........... [1 mark] [1 markah] Calculate the efficiency of each filaments P,Q, and R. Hitungkan kecekapan setiap filamen P,Q dan R.

[4 marks] [4 markah] (iii)

Suggest the most suitable filament to be used in the bulb. Justify your choice. Cadangkan filamen yang paling sesuai digunakan di dalam mentol. Berikan alasan bagi pilihan anda itu ………………………………………………………………................... ………………………………………………………………................... [2 marks] [2 markah]


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Section B Bahagian B

[20 marks] [20 markah] Answer any one question from this section. Jawab mana-mana satu soalan daripada bahagian ini.

9

Diagram 9.1 (a) and Diagram 9.2 (a) show two identical springs ar e compressed by two identical trolleys at different compression distance. Diagram 9.1 (b) and Diagram 9.2 (b) show the position of the trolleys after the compression force is released due to the elasticity of the spring. Rajah 9.1 (a) dan Rajah 9.2 (a) menunjukkan dua spring yang serupa dimampatkan oleh dua buah troli yang serupa pada jarak mampatan yang berbeza. Rajah 9.1 (b) dan 9.2 (b) menunjukkan kedudukan kedua-dua troli apabila daya mampatan dilepaskan disebabkan oleh kekenyalan spring-spring itu.

(a)

(i)

What is the meaning of elasticity? Apakah maksud kekenyalan? [1 mark] [1 markah]

(ii)

Using Diagram 9.1 and Diagram 9.2, compare the compression distance of the springs, the distance moved by the trolley and the elastic potential energy stored in the spring.


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Relate the compression distance of the spring with the distance moved by the trolley to make a deduction regarding the relationship between the compression distance of the spring and the elastic potential energy stored in the spring. Menggunakan Rajah 9.1 dan Rajah 9.2, bandingkan jarak mampatan spring, jarak troli bergerak dan tenaga keupayaan kenyal yang tersimpan dalam spring. Hubungkaitkan jarak mampatan spring dengan jarak troli bergerak untuk membuat kesimpulan tentang hubungan antara jarak mampatan spring dengan tenaga keupayaan kenyal yang tersimpan dalam spring. [5 marks] [5 markah] (b)

When the spring is compressed, its length decreases and returns back to its original length after compressive force is removed due to elasticity property of a material. Based on the forces between atoms, explain why the spring is elastic. Apabila spring dimampatkan, panjangnya akan berkurang dan kembali semula kepada panjang asal apabila daya mampatan dilepaskan disebabkan oleh sifat kenyal bahan. Berdasarkan kepada daya antara atom, terangkan mengapa spring bersifat kenyal. [4 marks] [4 markah]

(c)

Diagram 9.3 shows a trampoline. It uses the elastic property of a material to rebounce a person upwards. Rajah 9.3 menunjukkan sebuah trampolin. Ia menggunakan sifat kenyal bahan yang boleh melantun pengguna ke atas.



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You are required to give some suggestions to improve the design of the trampoline so that it can be used by the children safely and can jump higher. Anda dikehendaki memberi beberapa cadangan untuk memperbaiki rekabentuk trampolin supaya ianya dapat digunakan oleh kanak-kanak dengan selamat dan dapat melompat dengan lebih tinggi. Explain the suggestions based on the following aspects : Terangkan cadangan itu berdasarkan aspek-aspek berikut : (i) (ii) (iii) (iv) (v)

10.

the number of spring used bilangan spring yang digunakan spring constant pemalar spring the material used for frame bahan yang digunakan untuk bingkai the material used for fabric bahan yang digunakan untuk fabrik extra fitting or design of the trampoline to ensure safety pemasangan tambahan atau rekabentuk trampolin untuk memastikan keselamatan terjamin. [10 marks] [10 markah]

Diagram 10.1 and diagram 10.2 show coils of wire connected to ammeter, switch and d.c power supply. Rajah 10.1 dan 10.2 menunjukkan gelungan dawai disambung kepada ammeter, suis dan bekalan arus terus.

Diagram 10.1

Diagram 10.2

Rajah 10.1

Rajah 10.2


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When the switch is on the magnetic field pattern is formed as shown in the diagram above. Apabila suis dihidupkan corak medan magnet terbentuk seperti dalam rajah di atas. (a) What is meant by magnetic field? Apakah maksud medan magnet ?

[ 1 mark] [1 markah]

(b) Using Diagram 10.1 and Diagram10.2 compare the number of turns of the coils, the pattern of the magnetic field and the ammeter reading. [ 3 marks] Berdasarkan Rajah 10.1 dan Rajah 10.2, bandingkan bilangan lilitan gelung, corak medan magnet dan bacaan ammeter . [3 markah] (c) State the relationship between the strength of magnetic field and, Nyatakan hubungan antara kekuatan medan magnet dengan,

(d)

(i) the pattern of magnetic field. corak medan magnet .

[1 mark] [1 markah]

(ii)

[1 mark] [1 markah]

the number of turns of the coil. bilangan lilitan gelung.

Diagram 10.3 shows two thin copper strip KL and MN connected to circuit. Rajah 10.3 menunjukkan dua jalur kepingan kuprum nipis KL dan MN yang disambung kepada satu litar.



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(i)

What happens to the copper strip KL and MN, when the switch is on. [ 1 mark] Apa yang berlaku kepada jalur kuprum KL and MN apabila suis dihidupkan. [1 markah]

(ii)

Explain your answer by drawing a catapult field. Terangkan jawapan anda dengan melukis medan lastik .


(e)Diagram 10.4 shows an incomplete parts of a simple ele ctric motor. Rajah 10.4 menunjukkan sebuah motor elektrik ringkas dengan bahagian yang tidak lengkap.

Diagram10.4 Rajah 10.4 You are required to give some suggestions and modification of additional components to make an efficient direct current motor. Explain the suggestions based on the following aspects: Anda dikehendaki memberi beberapa cadangan dan pengubahsuaian bagi beberapa komponen untuk membuat sebuah motor arus terus y ang efisien. (i) Number of turns of the coil Bilangan lilitan gelung (ii) Additional components to enable the coil to rotates continously Komponen-komponen tambahan untuk membolehkan gelung berputar berterusan. (iii) Shape of the permanent magnet Bentuk magnet kekal (iv) Type of the core for the motor. Jenis teras untuk motor itu. [10 marks] [10 markah]


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Section C Bahagian C

[20 marks] [20 markah] Answer any one question from this section. Jawab mana-mana satu soalan daripada bahagian ini. 11.

Diagram 11.1 shows a weather balloon is used to carry a radiosonde instrument for collecting data about the atmosphere. The weather balloon rises up in the air due to Archimedes’ Principle Rajah 11.1 menunjukkan sebuah belon kaji cuaca digunakan untuk membawa peralatan radioson untuk mengumpul data mengenai atmosfera. Belon kaji cuaca naik ke atas disebabkan oleh Prinsip Archimedes.

Diagram 11.1 Rajah 11.1 (a) (b)

(c)

State the Archimedes’ principle. [1 mark] Nyatakan Prinsip Archimedes. [1 markah] Explain why a weather balloon that is rising up in the air will stop at certain altitude. [4 marks] Terangkan mengapa belon udara panas yang bergerak naik ke atas akan berhenti pada satu ketinggian tertentu. [4 markah] Diagram 11.2 shows four boats, P, Q, R and S, with different specificati ons. You are required to determine the most suitable boat that can carry many passengers, move with high speed and safe. Study the specifications of all the four boats from the following aspects. Rajah 11.2 menunjukkan empat buah bot P, Q, R dan S dengan spesifikasi yang berbeza. Anda dikehendaki menentukan bot yang paling sesuai digunakan untuk membawa penumpang yang ramai, bergerak dengan laju yang tinggi dan selamat. Kaji spesifikasi keempat-empat bot itu dari aspek berikut:


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The material used to build the body of the boat Bahan yang digunakan untuk membina badan bot . The volume of the boat Isipadu bot The distance of the Plimsol line from the surface of the sea Jarak garis Plimsol dari permukaan air laut . The size of the propeller Saiz kipas.

Volume is 50m 3 Isipadu 50m 3

Boat P Bot P

Plimsoll line Garisan Plimsol Fibre composite Gentian komposit

Propeller Kipas

Volumen is 100m3 Isipadu 100m3 Plimsoll line Garisan Plimsol

Boat Q Bot Q

Fibre composite Gentian komposit

Propeller Kipas

Volumen is 10 0m3 Isipadu 100m3 Plimsoll line Garisan Plimsol Boat R Bot R

Steel Besi keluli


Propeller Kipas

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Volumen is 100m Isipadu 100m3 Plimsoll line Garisan Plimsol

Boat S Bot S

Propeller Kipas

Steel Besi keluli

Diagram 11.2 Rajah 11.2 Explain the suitability of the above aspects and hence, determine t he most suitable boat to carry heavy load and move with high speed. Justify your choice. Terangkan kesesuaian aspek-aspek di atas dan seterusnya tentukan bot yang paling sesuai untuk membawa muatan yang berat dan bergerak dengan laju yang tinggi. Berikan sebab bagi pilihan anda. [ 10 marks] [10 markah] (d) The weight of a boat without load is 15000 N. The boat is then loaded with a heavy box. The volume of the immersed portion of the boat is 5.0 m 3. Berat bot tanpa muatan ialah 15000 N. Bot kemudian diisi dengan sebuah kotak yang berat. Isipadu bahagian bot yang tenggelam ialah 5.0 m 3. (i)

(ii)

Calculate the buoyant force exerted to the boat. [ Density of sea water is 1020 kgm -3] Hitungkan daya keapungan yang bertindak pada bot itu. [ Ketumpatan air laut adalah 1020 kgm -3]

[3 marks] [3 markah]

Calculate the maximum weight of the box so that the boat will not sink completely. [2 marks] Hitungkan berat maksimum kotak supaya bot itu tidak tenggelam sepenuhnya. [2 markah]


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Diagram 12 shows a Geiger Muller tube is connected to a counter that reads the background reading. Rajah 12 menunjukkan sebuah tiub Geiger Muller yang disambungkan kepada pembilang yang memberikan bacaan latar belakang.


(a)

(b)

Name one source that produced the background reading. Namakan satu punca yang menghasilkan bacaan latar belakang.

[1 mark] [1 markah]

Diagram 12.2 shows a charged electroscope. When a radioactive source is brought near the metal plate of the electroscope the gold leaf collapsed. Rajah 12.2 menunjukkan sebuah elektroskop bercas. Apabila satu sumber radioaktif dibawa mendekati plat logam elektroskop itu daun emas akan menguncup.

Diagram 12.2 Rajah 12.2 (i) (ii)

Name the type of radiation emitted by the source. Namakan jenis pancaran yang dipancarkan oleh sumber . Explain why the gold leaf collapsed. Terangkan mengapa daun emas itu menguncup.


[1 mark] [1 markah] [3 marks] [3 markah]

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(c)

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Radioisotopes is used to detect the position of blood clots (thrombosis) in the blood vessels. You are required to investigate the characteristics of the radioisotopes as shown in Table 12. Radioisotop digunakan untuk mengesan kedudukan darah beku di dalam salur darah. Anda dikehendaki untuk menyiasat ciri-ciri radioisotop seperti ditunjukkan dalam Jadual 12. Radioisotope Radioisotop

J K L M

State of Matter Keadaan Jirim Liquid Cecair Liquid Cecair Solid Pepejal Solid Pepejal

Half life Setengah hayat 6 days 6 hari 15 hours 15 jam 140 days 140 hari 28 years 28 tahun

Type of radiation Jenis Sinaran Gamma Gama Gamma Gama Beta Beta

Type of detector Jenis Pengesan

GM tube Tiub GM GM tube Tiub GM Spark counter Pembilang Bungapi Spark counter Pembilang Bungapi

Table 12 Jadual 12 Explain the suitability of each characteristics of the radioisotope to be used to detect the blood clots in the blood vessels. Determine the most suitable radioisotope that can be used to detect the position of the blood clots.Give reasons for your choice. [10 marks] Terangkan kesesuaian setiap ciri radioisotop yang akan digunakan untuk mengesan kedudukan darah beku dalam salur darah. Tentukan radioisotop yang paling sesuai yang boleh digunakan untuk mengesan kedudukan darah beku itu. Beri sebab-sebab untuk pilihan anda. [10 markah] (d)

A nuclear reaction is represented by the following equation: Satu tindak balas nuklear diwakili oleh persamaan berikut : 235 U 92

+ 01n → 141 + 55 Cs

93 37 Rb

+ 2 01n + energy

Mass of: Jisim bagi: 235 U 92 1 n 0

= 235.04392 u

= 1.00867 u


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141 55 Cs 93 Rb 37

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= 140.91963 u

= 92.92157 u

1 u = 1.66 x 10 -27 kg Speed of light = 3.0 x 10 8 ms-1 Based on the equation,calculate: Berdasarkan persamaan itu, hitungkan (i)

the mass defect in kg cacat jisim dalam kg.

(ii)

the energy released. tenaga yang dibebaskan [5 marks] [5 markah]

END OF QUESTION PAPER KERTAS SOALAN TAMAT


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4531/3

NAMA:....................................................

Tingkatan :....................



JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

1. 2.

3.

4. 5 6.

7 8

Kertas soalan ini mengandungi dua bahagian : Bahagian A dan Bahagian B. Jawab semua soalan dalam Bahagian A. Tuliskan jawapan bagi Bahagian A dalam ruang yang disediakan dalam kertas soalan. Jawab satu soalan daripada Bahagian B. Tuliskan jawapan Bahagian B pada ruangan yang disediakan. . Jawab Bahagian B dengan lebih terperinci. Jawapan mestilah jelas dan logik. Tunjukkan kerja mengira, ini membantu anda mendapat markah. Gambarajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan. Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukkan dalam kurungan. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh di programkan. Masa yang dicadangkan untuk menjawab Bahagian ialah 60 minit dan Bahagian B ialah 30 minit.

Kegunaan Pemeriksa

Bahagian

A

B

Soalan

Markah Penuh

1

16

2

12

3

12

4

12

Markah

JUMLAH

Kertas ini mengandungi 21 halaman bercetak 4531/3 © 2013 Hak Cipta BPSBPSK

[L ih at H alaman Sebel ah

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Section A Bahagian A

[28 marks] [28 markah] Answer all questions in this section Jawab semu a soalan dalam bahagian ini. 1

A student carries out an experiment to investigate the relationship between the image distance, v, and the linear magnification m, of a convex lens. The apparatus is set up as shown in Diagram 1.1 Seorang pelajar menjalankan eksperimen untuk mengkaji hubungan antara jarak imej, v dan pembesaran linear,m untuk sebuah kanta cembung. Susunan alat radas ditunjukkan dalam Rajah 1.1.

At the beginning, the object is placed at the distance u = 6.3 cm from the lens. The screen is adjusted until a t sharp image is formed. The image distance, v is then measured by using the metre rule. The above procedure is repeated by varying the values of u to be 6.5 cm, 6.7 cm, 6.9 cm, and 7.1 cm. Diagram 1.2, 1.3, 1.4, 1.5 and 1.6 on page 3, page 4 and page 5 show reading of the metre rule when the image distance, v, is measured. Pada permulaan, objek diletakkan pada jarak objek u = 6.3 cm daripada kanta. Skrin dilaraskan sehingga satuimej tajam terbentuk . Jarak imej , v kemudian diukur mengunakan pembaris meter. Prosedur di atas diulang dengan nilai u =6.5 cm, 6.7 cm,6.9 cm, dan 7.1 cm. Rajah 1.2, 1.3, 1.4, 1.5 dan 1.6 pada halaman 3, halaman 4 dan halaman 5 menunjukkan bacan pembaris meter bila jarak imej, v, diukur.


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For the experiment described on page 2, identify, Bagi eksperimen yang diterangkan di halaman 2 , kenal pasti ;

(i)

(ii)

The manipulated variable, Pembolehubah yang dimanipulasikan, ..............................................................……………………………….... ............ [ 1 mark ] [1 markah] The responding variable Pembolehubah bergerak balas, ............................................................ ..……………………………….... ............ [ 1 mark ] [1 markah]

(iii)

A fixed variable, Pembolehubah yang dimalarkan,


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..............................................................……………………………….... ........... [ 1 mark ] [1 markah]

(b)

(i)

Based on Diagram 1.2, 1.3, 1.4, 1.5 and 1.6 on page 3, page 4 and page 5 , measure the image distance, v . Berdasarkan rajah di 1.2, 1.3, 1.4, 1.5 dan 1.6 pada halaman 3, halaman 4 dan halaman 5 , ukur jarak imej, v.

(ii)

For each value of v, in 1 b(i), calculate the linear magnification using the formula below: Untuk setiap nilai v di b(i), hitung pembesaran linear dengan mengunakan rumus di bawah:

m= (iii) Tabulate your results for u , v and m in the space below. Jadualkan data anda bagi semua nilai u, v dan m dalam ruang di bawah.

[7 marks ] [7 markah] (c )

On the graph paper on page 7, draw a graph of v against m. Pada kertas graf di halaman 7, lukiskan graf v melawan m.


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(d)

Based on the graph on page 7, state the relationship between v and m . Berdasarkan graf anda di halaman 7, nyatakan hubungan antara v dan m.

..............................................................……………………………….... ............ [ 1 mark ] [1 markah]


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Graph of v against m Graf v melawan m


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The graph R against

1 I

in Diagram 2 shows the results of the experiment to determine

the electromotive force, E and the internal resistance, r of a battery. Graf R melawan

1 I

di dalam Rajah 2 menunjukkan keputusan satu eksperimen untuk

menentukan daya gerak elektrik, E dan rintangan dalam, r bagi suatu bateri. (a) Based on the graph in Diagram 2 on page 11, Berdasarkan graf dalam Rajah 2 di halaman 11, (i)

What happen when R increases? Apakah yang berlaku jika R meningkat?

………………………………………………………………………………………… . [1 mark ]

[1 markah]

(ii) Determine the value of the internal resistance , r when the value 1 = 0.0 A-1 I -1 Tentukan nilai rintangan dalam, r apabila nilai 1 = 0.0 A I

………………………………………………………………………………………….. [1 mark ]

[1 markah] (b) Determine the gradient of the graph. Tentukan kecerunan graf.

[3 marks ]

[1 markah]


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(c) The equation to find the electromotive force , E of the battery is given by the equation , Persamaan untuk menentukan nilai daya gerak elektrik, E bagi suatu bateri diberikan oleh persamaan berikut,

E = IR + Ir Based on your answer in (b) , determine the electromotive force , E of the battery. Berdasarkan pada jawapan kamu di (b), tentukan daya gerak elektrik, E bagi bateri itu.

[3 marks ]

[3 markah]

(d) By using graph on page 11, what is the current flow, when R = 10.5 . Dengan mengunakkan graf pada halaman 11, berapakah nilai arus yang mengalir, apabila R= 10.5  .

[3 marks ]

[3 markah] (e) State one precaution that should be taken during this experiment. Nyatakan satu langkah berjaga-jaga yang patut diambil ketika eksperimen ini.

………………………………………………………………………………………………… ………………………………………………………………………………………………… [1 mark ] [1 markah]


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Graph R Graph R against R melawan

1 I

1 I

R/ Ω

11.0

10.0

9.0

8.0

7.0

6.0

5.0

4.0

3.0

1.0 1

0.0 0.5

1.0

1. 5

2. 0

I

/ A

-1.0

-2.0 Diagram 2 Rajah 2


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4531/3 Section B Bahagian B

[12 marks] [12 markah] Answer any one question from this section Jawab mana-mana satu soalan daripada bahagian ini.

3

Diagram 3.1 and Diagram 3.2 show that a foot feels more painful when it is step on by a high heel shoe compare compare to a flat one. Rajah 3.1 dan Rajah 3.2 menunjukkan menunjukkan kaki merasa lebih sakit apabila dipijak oleh kasut bertumit tinggi berbanding kasut tapak rata.




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Based on the observation: Berdasarkan pemerhatian anda: anda: (a)

State one suitable inference. Nyatakan satu inferens yang sesuai.

(b)

State one suitable hypothesis. Nyatakan satu hipotesis hipotesis yang sesuai. sesuai.

(c)

[1 mark] [1 markah]

[1 mark] [1 markah] markah]

With the use of apparatus such as load, ruler and others apparatus, describe an experiment to investigate the hypothesis h ypothesis stated in 3 (b). Dengan mengunakan mengunakan radas seperti beban, pembaris dan lain-lain, terangkan terangkan satu eksperimen untuk menyiasat hipotesis yang dinyatakan dinyatakan pada 3(b). In your description, state clearly the following: Dalam penerangan anda, nyatakan dengan dengan jelas perkara berikut : (i)

Aim of the experiment. Tujuan eksperimen.

(ii)

Variables in the experiment. Pembolehubah dalam dalam eksperimen.

(iii)

List of apparatus and materials. Senarai radas dan bahan

(iv)

Arrangement of the apparatus. Susunan radas.

(v)

The procedure of the experiment which include one method of controlling the manipulated variable and one method of measuring the responding variable. Prosedur eksperimen termasuk satu kaedah kaedah mengawal pembolehubah dimanipulasikan dan satu kaedah mengukur pembolehubah bergerak balas.

(vi)

The way you would tabulate the data. Cara untuk menjadualkan data.

(vii)

The way you would analyse the data. Cara menganalisis data. [10 marks ] [10 markah] markah]


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The lamp of the bicycle lights up when the magnet in the dynamo is rotated by turning the wheel. Diagram 4.1 shows a lady cycles her bicycle with moderate velocity . Diagram 4.2 shows a bicycle cyclist cycles his bicycle with high velocity. It is found that his bicycle’s lamp lights up brighter. Lampu sebuah basikal menyala apabila magnet di dalam dinamo itu berputar oleh putaran tayar. Rajah 4.1 menunjukkan seorang wanita mengayuh basikalnya dengan kelajuan sederhana. Rajah 4.2 pula menunjukkan seorang pelumba basikal mengayuh basikalnya dengan halaju yang tinggi. . Didapati nyalaan lampunya lebih terang.

Magnet

Dynamo Dinamo


Diagram 4.2 R ajah 4.2

Based on the observation above and your knowledge of electromagnet; Berdasarkan pemerhatian diatas dan pengetahuan berkaitan elektromagnet: (a)

State one suitable inference. Nyatakan satu inferens yang sesuai.

[1 mark] [ 1 markah]

(b)

State one suitable hypothesis. Nyatakan satu hipotesis yang sesuai.

[1 mark] [ 1 markah]

(c)

With the use of apparatus such as a bar magnet, a coil of a copper wire and others describe one experiment framework to investigate the hypothesis stated in 4(b).


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Dengan menggunakan alatan seperti magnet bar, gegelung dawai kuprum dan lain-lain, terangkan satu eksperimen untuk menyiasat hipotesis yang nyatakan di 4(b). In your description state clearly the following : Dalam penerangan anda jelaskan perkara berikut : (i)

Aim of the experiment. Tujuan eksperimen.

(ii)

Variables in the experiment. Pembolehubah dalam eksperimen.

(iii)

List of apparatus and materials. Senarai radas dan bahan

(iv)

Arrangement of the apparatus. Susunan radas.

(v)

The procedure of the experiment which include one method of controlling the manipulated variable and one method of measuring the responding variable. Prosedur eksperimen termasuk satu kaedah mengawal pembolehubah dimanipulasikan dan satu kaedah mengukur pembolehubah bergerak balas.

(vi)

The way you would tabulate the data. Cara untuk menjadualkan data..

(vii)

The way you would analyse the data. Cara anda menganalisis data. [10 marks] [10 markah] END OF QUESTION PAPER KERTAS SOALAN TAMAT


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PENTAKSIRAN DIAGNOSTIK AKADEMIK SBP SIJIL PELAJARAN MALAYSIA 2013 MATAPELAJARAN FIZIK SKEMA JAWAPAN KERTAS 1

NO. SOALAN

JAWAPAN

NO. SOALAN

JAWAPAN

1

C

26

C

2

B

27

D

3

D

28

B

4

B

29

D

5

B

30

C

6

D

31

A

7

C

32

D

8

A

33

B

9

B

34

D

10

D

35

B

11

B

36

A

12

C

37

D

13

C

38

C

14

C

39

B

15

B

40

D

16

C

41

D

17

A

42

A

18

A

43

A

19

D

44

B

20

A

45

C

21

C

46

C

22

B

47

D

23

C

48

C

24

B

49

B

25

B

50

A

4531/1 © 2013 Hak

Cipta BPSBPSK

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PENTAKSIRAN DIAGNOSTIK AKADEMIK SBP SIJIL PELAJARAN MALAYSIA 2013 MATAPELAJARAN: FIZIK SKEMA JAWAPAN KERTAS 2 No 1

Answer

Marks

(a)

length

1

(b)

Tail

1

(c)

to measure depth

1

(d)

0.42 cm

1

Total

No 2

(a)

4

Answer Product of an applied force and displacement / distance //Force X distance

(b) M1 M2 (c) M1 M2

W=FXS = 110 x0.5 = 55 J / Nm F = ma 110 – 100 = 10 (a) 10 = 10 a -2 a = 1 ms

Marks 1

Total 1

1 1

2

2 1 1

Total

No 3

5

Answer

Marks

(a)

Thermionic emission

1

(b)

Uniform acceleration

1

(c) (i) (ii)

VP = 4 V T = 3 x 0.02 = 0.06 s f = 16.7 Hz

1 1

Sinusoidal with one complete cycle

1

(iii)

Total

1

Total

Total

No 4

(a) (b)

(c)

6

Answer The amount of heat energy required to increase the the temperature of 1kg mass by 10 C. Pt = mcӨ c = 48(900) 60 = 720 J kg-1 0C-1 M1 Land has a smaller specific heat capacity than sea // Land faster increase in temperature // Land is warmer than the sea M2 Air above the land is heated up and rises M3 Cooler air from the sea moves towards the land

Marks 1

Total 1

2

2

1

3

1 1

Or diagram

(d)

M1 Label Sea(cold), Land (Hot) M2 Show Hot air on land rises up M3 Show Cold air moves towards the sea Sea breeze

No

5

Answer

(a)(i) (ii)

1

1 7

Marks

Total

Spring balance reading: diagram 5.1 > 5.2

1

Buoyant force / Upthrust

1

2

2

(b)(i)

Spring balance reading: diagram 5.3 > 5.2

1

(ii)

Density of water > density of oil

1

(iii)

As density of liquid increases, buoyant force increases

1

(c)(i)

pressure at Y > pressure at X // vice versa // Y is at greater depth than X // pressure is directly proportional to depth.

1

Buoyant force = (Difference in pressure) x A

1

(ii)

1

Total

No 6

(a)

3 8

Answer Longitudinal waves // Mechanical wave

(b)

3

1. Loud sound - when antinodes/crest/trough overlapped/meet/encounter another antinodes/crest/trough, a constructive interference occur 2. Soft sound – when nodes/crest/trough overlapped/meet/encounter another nodes/ trough, a destructive interference occur

Marks 1

Total 1

1

2

1

(c) (i)

Diagram 6.1 > Diagram 6.2 // vice-versa

1

(ii)

Diagram 6.1 < Diagram 6.2 // vice-versa

1

(iii)

aα

1

3

(d)

M1 frequency// wavelength M2 amplitude M3 Distance between loud speaker and observer (Any two)

1 1

2

8 No 7

Answer (a)

Reflection

(b) (i)

Marks 1

Total 1

1

3

1 1

3

(ii)

Virtual // Upright // Diminished

1

1

(c)

1. Aim the concave mirror to the sun 2. parallel ray from sun reflected and focus to F 3. amount of heat increases as all rays focus at F Max : 2 points 1. lens Q 2. f is smaller Use concave mirror

1 1

2

1 1 1

1

(d) (i) (ii)

Total No. 8

(a) (b) (i)

(ii)

(c) (i) (ii)

(iii)

10

Answers When a potential difference of 9V is connected across the bulb, it will produce power of 20J per second. P = V/I 20W = 9V/I I = 20W/9V = 2.22A R = V/I = 9V/2.22A = 4.05 Ω The more the thickness of the wire, the lower the loss of energy from the filament. Efficiency = Energy Output / Energy Input x 100% E Filament P = 15 x 100 % 20 = 75.00% E Filament Q = 28 x 100 % 30 = 93.33% E Filament R = 43 x 100 % 50 = 86.00% Filament Q has highest efficiency

Marks 1

Answer

4

1

1 1

2

1 1

2

1

2

1 1

1

1 1 1

Total

No

1

Marks

5 2 12

Total

9

(a) (i)

(ii)

Property of material that enable it to return to its original shape and size after an external force that acting on it is removed

1

Compression of the spring in Diagram 9.2(a) is higher than 9.1 (a)

1 1

Distance moved by the trolley in Diagram 9.2 (b) is further than 9.1 (a) Elastic potential energy of the spring Diagram 9.2(a) is higher than 9.1 (a) The higher the compression, the further the distance moved by the trolley The bhigher the compression, the higher the elastic potential energy (b)

The forces between atom are attractive force and repulsive force When the force is applied , the distance between atoms decreases The repulsive force is acted on the atoms When applied force is removed, repulsive force pushes the atoms back to original

(c)

Design

High elasticity

Strong material for frame // steel

Not break easily // Not rust easily

Low spring constant

To get more extension

Has net around / / bigger diameter of trampoline

1

1 1

1 1 1

Reasons

Many springs (arranged in parallel)

Nylon// polyethene// strong fabric

1

2 2

2 Does not tear easily

2 2

Prevent children from slipping to the floor

5

2

20

Total

No 10

Answer

Mark

Total

(a)

A magnetic field is a region in which a magnetic material will experience a magnetic force

1

1

(b)

The number of turns of the coils shown in diagram 10.2 is greater than 10.1

1

3

1

(c)

The pattern of magnetic field in diagram 10.2 is dense r than 10.1

1

The deflection of ammeter in diagram 10.2 is bigger than 10.1 The closer the pattern of magnetic field // the denser of magnetic field, the greater the strength of the magnetic field.

1 1

2

(d) (i)

The strength of the magnetic field increase when the number of turns of coils increase 1. Repel each other

1

1

(ii)

1.

1

3

When current flows, magnetic field is form // Diagram 2. Direction of magnetic field at the centre is the same // Magnitude of magnetic field is stronger at the centre // Diagram 3. Two forces produced is in opposite direction // Diagram

Modification

More number of turn for the coil/ Has commutator

1

Force

Force

(e)

1

Explanation

Increase the strength of magnetic field // increase the speed of motor To reverse the current flow in the coil // ensure core 6

1,1

1,1

rotate in one direction Brush

Enable current flow through the coil

Semicircular magnet // curved magnet

To produce radial magnetic field

Soft iron core

Concentrate the magnetic field.

1,1

10 Total

11

(a) (b)

(c)

(d) (i)

(ii)

Archimedes’ Principle states that the buoyant force is equal to the weight of fluid displaced. 1.Density of air decreases as altitude increases 2.Bouyant force become smaller 3.At certain height, weight of displaced air equal t o weight of the balloon. 4.Net force zero Characteristics Explanation Fiber composite Light and strong Bigger volume High buoyant force The distance between Can carry more load plimsoll line from the surface of the sea is high Bigger size of the To produce greater propeller forward thrust Q is chosen the body is made from fibre composite, volume is bigger, the distance between plimsoll line from the surface of the sea is higher and bigger size of the propeller F = ρ gv = 1020 × 10 × 5 = 51000 N Total weight 15000 + W = 51000 N W = 36000 N 7

20

1

1

1

4

1 1 1 2 2

2

2

2

10

1 1

2

1 1 1

3

Total

No

12

20

Answer

(a)

Cosmic ray// radiation from surrounding //radioactive materials from earth// leakage of radioactive from nuclear power plant

Marks

Total

1

1

(b)(i)

Alpha

1

1

(ii)

1. The ray ionises the air molecule

1 1 1

3

2. Negative ions attracted to the plate 3. Neutralised the electroscope

(c)

Characteristics Liquid

10

Reasoning Easy to flow with blood

2 Short half life

Not long in the body // less harmful Cannot ionised the living cell // high penetrating power Can detect ray effectively// portable Because it is in liquid state , has short half life, emits gamma ray and can be detected easily detected by GM tube detector.

Gamma Ray

GM tube detector K is chosen

8

2 2

2

2

(d)(i)

(i) m = [235.04392 + 1.00867] – [140.91963 + 92.92157 + 2(1.00867)] = [236.05259] – [ 235.85854]

1 1

= 0.19405u m = 0.19405 x 1.66 x 10 = 0.0322 x 10

-27

1

3

-27

= 3.22123 x 10 -28 kg (ii)

E = mc 2 = (3.22123 x 10 -29) (3.0 x 10 8) = 28.99107 x 10 -12 = 2.899107 x 10 -11 J

1 1

2 20

Total

9

PENTAKSIRAN DIAGNOSTIK AKADEMIK SBP SIJIL PELAJARAN MALAYSIA 2013 MATAPELAJARAN: FIZIK SKEMA JAWAPAN KERTAS 3 SECTION A

No. 1 (a) (i) (ii) (iii) (b)

(c)

Answer Manipulated variable = Object distance, u // Image distance, v

Image distance, v // M Thickness//focal length//power

Responding variable = Constant variable

=

Tabulate u, v and m correctly in the table. A Shows a table u,v and m. B State the correct unit of u, v and m. C At least 3 values of v are correct D All values of v are correct E At least 3 value of m are correct F All values of m are correct G State a consistent decimal place for u, v and m. u/cm

v/cm

m

6.3

8.8

1.40

6.5

7.7

1.18

6.7

6.7

1.00

6.9

5.5

0.80

7.1

4.3

0.61

Draw the graph of v against m . A - Label y-axis and x-axis correctly B - States the unit at the axis correctly C - Both axes with the even and uniform scale: D - 5 points correctly plotted: E - a smooth best straight line F - minimum size of the graph is 5 x 4 squares of 2 x 2 cm. Draw the graph of v against m . A - Label y-axis and x-axis correctly B - States the unit at the axis correctly C - Both axes with the even and uniform scale: D - 5 points correctly plotted: E - a smooth best straight line F - minimum size of the graph is 5 x 4 squares of 2 x 2 cm. No of ticks

6

Score 5

5

4 1

Mark 1 1 1 7

(d)

No 2 (a)(i)

3-4

3

2 1

2 1

5

State the correct relationship based on the candid ate’s graph v is increasing linearly to m

1

TOTAL 16 Mark

Answer 1 increases // I decreases

1

I

(ii) (b)

1.0 Ω

Show a big  on the graph to determine the gradient(5 x 4 blocks) The correct

y 2 x 2

m = 5.14A 

 y1 from the  drawn  x1

1 1 1 1

(Ans + unit)

(c)

1 1 1

R =E ( 1) - r I E = gradient of the graph

= 5.14 V // 5.14 A (d)

Show line on graph to get 1/I 1/I =2.25 I = 0.44

(e)

1. The connection of the wires must be tight. 2. The circuit is switched off whenever the readings were not t aken from the meters. This is to reduce energy loss from the cell. 3. The eye is perpendicular to the scale of ammeter // Pointer’s image is not seen on the mirror strip of ammeter. Max 1 mark Total

1 1 1 1

12

2

SECTION B

No

3 (a)

(b) (c)

Answer

Mark

State the suitable inference The foot feels more painful when it is stepped on by an object that has smaller surface area // Pressure depend on surface area State a relevant hypothesis The smaller the surface area the greater the pressure

1

State the aim of experiment To investigate the relationship between surface area and pressure.

1

State the suitable manipulated variables and responding variable (Quantity that can be measured) MV - surface area RV - pressure/depth of depression

1

State the constant variable CV – Weight/force/mass

1

State the complete list of apparatus and materials Plasticine, slotted weight , wooden rod and meter rule

1

Draw the functional arrangement of the apparatus

1

State the method to control the manipulated variable The apparatus is set up as shown in the diagram. 2

1

Start the experiment with a wooden rod has surface area 1 cm . Placed the load of mass 200 g on the top of wooden rod as shown on diagram State the method to measure the responding variable Measure the depth of depression made on the plasticine

1 Repeat the experiment at least 4 times with the values Repeat the experiment 4 times with surface area of rod 2 cm2, 3 cm2 , 4 cm2 and 5cm2 (Note : Based on SPM standard , at least five manipulated values required.)

3

1

State how the data tabulated with the title MV and RV Surface area Depth 1 2 3 4 5

1

State how the data is analysed, plot a graph RV against MV

1

TOTAL MARK

4(a)

(b)

(c)

State the suitable inference The brightness of the lamp increases when the speed of the magnet in the coils(solenoid) increases// Induced current depend on the speed of magnet

12

1

State a relevant hypothesis The magnitude of the induced current increases when the speed of the magnet increases.

1

State the aim of experiment To study the relationship between the speed of a magnet in a coil and the magnitude of the induced current.

1

State the suitable manipulated variables and responding variable (Quantity that can be measured) Manipulated variables : the height of the magnet fall Responding variables : Deflection/ reading of the galvanometer State the constant variable strenght of the magnet / number of the turns in the coils. State the complete list of apparatus and materials Bar magnet, cardboard tube, galvanometer, insulated copper wire, retort stand and metre rule.

4

1

1

1

Draw the functional arrangement of the apparatus

1

State the method to control the manipulated variable 1. Make a solenoid of 50 turns by winding an insulated copper wire round a cardboard tube. Connect the ends of the wire to a galvanometer. 2. Hold a small bar magnet at a height of h = 5 cm above the top end of the solenoid. State the method to measure the responding variable 3. Drop the magnet into the solenoid into the solenoid and record the deflection of the galvanometer as the induced current. Repeat the experiment at least 4 times with the values 4. Repeat the eksperiment by changing the height h to 10 cm, 15 cm, 20 cm , 25 cm and 30 cm.

1

1

1

State how the data tabulated with the title MV and RV Height of the magnet,h Induced current I

5.0 10.0 15.0 20.0

1

25.0 30.0 State how the data is analysed, plot a graph RV against MV

1

TOTAL MARK

5

12

6

Spm Trial 2013 Physics Qa SBP

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