Modul Fizik Cakna Kelantan SPM 2014 K2 Set 1 Dan Skema

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MODUL G-CAKNA 2014

JABATAN PENDIDIKAN KELANTAN Nama : …………………………………………………. 4531/2 FIZIK Kertas 2 2 ½ jam

Tingkatan : …………………………………………….

FIZIK – SET 1 KERTAS 2 Masa : 2 Jam 30 minit JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

1.

Kertas soalan ini adalah dalam dwibahasa.

2.

Soalan dalam bahasa inggeris mendahului soalan sepadan dalam bahasa Melayu

3.

4

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

Bahagian

A

Calon dikehendaki membaca maklumat di halaman belakang kertas soalan ini

B

C

Untuk Kegunaan Pemeriksa

Soalan

Markah Penuh

1

4

2

5

3

6

4

7

5

8

6

8

7

10

8

12

9

20

10

20

11

20

12

20

Jumlah

Kertas Ujian ini mengandungi 31 muka surat bercetak ……..…./LIHAT SEBELAH

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1 / LIHAT SEBELAH…

Markah Diperolehi

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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=

v–u t

16.

Power, P = time

2.

v2 = u2 + 2 as

17.

V = IR

3.

s = ut

4.

Momentum = mv

19.

Ns = Vs Np Vp

5.

F = ma

20.

Efficiency = (kecekapan)

Is Vs x 100 % Ip Vp

6.

Kinetic energy Tenaga kinetik

1 =

1 v

+ 1 at2 2

18.

= 1 mv2 2

Power, P = IV Kuasa

21. f

7.

Gravitational potential energy = mgh Tenaga keupayaan graviti

8.

Elastic potential energy = Tenaga keupayaan kenyal

9.

 =

10.

Pressure, P = Tekanan

11.

Pressure, P = Tekanan

12.

m V

1 + u

n = sin i sin r 23.

2

n = Real depth Apparent depth

24.

λ = ax D

hg.

25.

Q= It

F A

26.

E = I (R + r)

27.

eV = ½ mv2

28.

g = 10 ms-2

Heat, Q = mc Haba

13.

PV = Constant (pemalar)

14.

E = m c2

15.

v=f 

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1 Fx

22.

energy


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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 man standing in front of a concave mirror. Rajah 1.1 menunjukkan seorang lelaki berdiri di hadapan sebuah cermin cekung.

Diagram 1.1 Rajah 1.1 (a)

Based on Diagram 1.1, state one characteristic of the image. Berdasarkan Rajah 1.1, nyatakan satu ciri bagi imej. …………………………………………………………………………… [1 mark] [1 markah]

(b)

(i)

Draw a concave mirror in the space below. Lukis satu cermin cekung dalam ruang di bawah.

[1 mark] [1 markah]

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Diagram 1.2 Rajah 1.2 (ii) Diagram formed.

O is the pole of the mirror and F is the focal point of the mirror. Menggunakan jawapan dalam 1(b)(i), lengkapkan rajah sinar dalam Rajah 1.2 untuk menunjukkan bagaimana imej lelaki Rajah 1.1 terbentuk. O adalah kutub bagi cermin itu dan F adalah titik fokus bagi itu. [2 marks] [2 markah]

dalam cermin

2.

Using the answer in 1(b)(i), complete the ray diagram on 1.2 to show how the image of the man in Diagram 1.1 is

Diagram 2.1 shows an electric circuit. Diagram 2.2. shows a potential difference, V against current, I graph when the switch is pressed. Rajah 2.1 menunjukkan satu litar elektrik. Rajah 2.2 menunjukkan satu graf beza keupayaan, V melawan arus, I apabila suis ditekan.

Diagram 2.1 PANEL G-CAKNA

Diagram 2.2 4 / LIHAT SEBELAH…

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(a)

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(i)

Rajah 2.1 Rajah 2.2 Based on Diagram 2.1, state the physical quantity measured by the voltmeter. Berdasarkan Rajah 2.1, nyatakan kuantiti fizik yang diukur oleh voltmeter. ………………………………………………………………….......... [1 mark] [1 markah]

(ii)

Based on Diagram 2.2, state the value of the physical quantity stated in 2a(i). Berdasarkan Rajah 2.2, nyatakan nilai bagi kuantiti fizik yang dinyatakan dalam 2a(i). …………………………………………………………………………... [1 mark] [1 markah]

(b)

Using Diagram 2.1 and Diagram 2.2, Menggunakan Rajah 2.1 dan Rajah 2.2, (i)

Calculate the internal resistance, r of the dry cell Hitung rintangan dalam, r bagi sel kering.

[2 marks] [2 markah] (ii)

What happens to the reading of the voltmeter if the resistor, R is replaced with another resistor of higher magnitude? Apakah yang berlaku kepada bacaan voltmeter jika perintang, R diganti dengan perintang lain yang mempunyai magnitud yang lebih tinggi? ………………………………………………………………………….. [1 mark] [1 markah]

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3.

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Diagram 3.1 shows a 800 W immersion heater being used to heat water of mass 300 g in a beaker which is on an electronic balance. The initial temperature of water is 28oC. Rajah 3.1 menunjukkan suatu pemanas rendam 800 W yang digunakan untuk memanaskan air berjisim 300 g dalam bikar yang berada di atas neraca elektronik. Suhu awal air adalah 28oC.


State the transformation of energy involved while the water is heated with an immersion heater. Nyatakan perubahan tenaga yang terlibat ketika air dipanaskan dengan pemanas rendam. ………………………………………………………………………………… [1 mark] [1 markah]

(b)

Calculate the heat energy absorbed by the water to reach its boiling point. Hitung tenaga haba yang diserap oleh air itu untuk mencapai takat didih. ( Specific heat capacity of water = 4200 J kg-1 oC-1) (Muatan haba tentu bagi air = 4200 J kg-1 oC-1)

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(c)

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[2 marks] [2 markah] When the water is boiling, the reading of the electronic balance decreases by 50 g in 150 s. Ketika air sedang mendidih, bacaan neraca elektronik berkurang sebanyak 50 g dalam masa 150 s. (i)

Calculate the specific latent heat of vaporisation of the water. Hitung haba pendam tentu pengewapan bagi air itu.

[2 marks] [2 markah] (ii)

Give a reason why the temperature of the water remain unchanged during the boiling of water. Berikan sebab mengapa suhu air tidak berubah semasa air itu mendidih. …………………………………………………………………………. [1 mark] [1 markah]

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4.

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Diagram 4 shows a brake system of a car. Rajah 4 menunjukkan suatu sistem brek bagi sebuah kereta.

Diagram 4 Rajah 4 (a)

Name the principle involved in this brake system. Namakan prinsip yang terlibat dalam sistem brek ini.

……………………………………………………………………………………… [1 mark] [1 markah] (b)

Give one reason why water is not suitable to be used as the brake fluid. Berikan satu sebab mengapa air tidak sesuai untuk digunakan sebagai cecair brek. …………………………………………………………………………… [1 mark] [1 markah]

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(c)

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Based on Diagram 4, Berdasarkan Rajah 4, (i)

Explain why piston B has bigger surface area compared to piston A? Terangkan mengapa omboh B mempunyai luas permukaan yang lebih besar berbanding dengan omboh A? ……………………………………………………………………....... ………………………………………………………………………… [2 marks] [2 markah]

(ii)

State one modification to the brake pedal that enables the brake system to be used in heavy vehicles. Nyatakan satu pengubahsuaian kepada pedal brek bagi membolehkan sistem brek itu digunakan dalam kenderaan berat. ………………………………………………………………………...... [1 mark] [1 markah]

(d)

A force of 50 N is applied on the brake pedal which has cross sectional area 2 cm2. Calculate the force produced on the brake pad if it’s cross sectional area is 15 cm2. Suatu daya 50 N dikenakan ke atas pedal brek yang mempunyai luas keratan rentas 2 cm2. Hitung daya yang dihasilkan pada pad brek jika luas keratan rentasnya adalah 15 cm2.

[2 marks] [2 markah]

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5.

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Diagram 5.1 shows a boy kicking a ball. Diagram 5.2 shows the same boy kicking another ball which is identical but is deflated. Rajah 5.1 menunjukkan seorang budak lelaki menendang sebiji bola. Rajah 5.2 menunjukkan budak yang sama menendang sebiji bola lain yang serupa tetapi kempis.

Diagram 5.1 Rajah 5.1


The ball swerved due to impulsive force. Bola itu melencong disebabkan oleh daya impuls. (a)

What is the meaning of impulsive force? Apakah yang dimaksudkan dengan daya impuls? ……………………………………………………………………………..

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[1 mark] [1 markah] (b)

Using Diagram 5.1 and Diagram 5.2, compare: Menggunakan Rajah 5.1 dan Rajah 5.2, bandingkan: (i)

The displacement of the ball, AB Sesaran bola itu, AB …………………………………………………………………………. [1 mark] [1 markah]

(ii)

(iii)

The time of contact between the foot of the boy and the ball. Masa tindak balas antara kaki budak lelaki itu dan bola. ………………………………………………………………………… [1 mark] [1 markah] The change of momentum of the ball Perubahan momentum bola itu ………………………………………………………………………… [1 mark] [1 markah]

(c)

Relate the displacement of the ball with: Hubungkaitkan sesaran bola itu dengan: (i)

(ii)

The time of contact between the foot of the boy and the ball Masa tindakbalas antara kaki budak lelaki itu dan bola ………………………………………………………………………… [1 mark] [1 markah] The change of momentum of the ball Perubahan momentum bola itu ………………………………………………………………………… [1 mark] [1 markah]

(d)

State the relationship between the impulsive force and:

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Nyatakan hubungan antara daya impuls dan:

(i)

(ii)

The time of contact between the foot of the boy and the ball Masa tindakbalas antara kaki budak lelaki itu dan bola ………………………………………………………………………… [1 mark] [1 markah] The change of momentum of the ball Perubahan momentum bola itu ………………………………………………………………………… [1 mark] [1 markah]

6.

Diagram 6.1 and Diagram 6.2 show the fringes’ patterns produced when two identical monochromatic lights passing through two double slits of different width. Rajah 6.1 dan Rajah 6.2 menunjukkan corak pinggir yang dihasilkan apabila dua cahaya monokromatik yang sama melalui dua dwicelah dengan lebar yang berbeza.



What is the meaning of monochromatic light? Apakah yang dimaksudkan dengan cahaya monokromatik?

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(b)

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………………………………………………………………………………… [1 mark] [1 markah] Explain how fringes are formed on the screen? Terangkan bagaimana pinggir-pinggir terbentuk di atas skrin? ………………………………………………………………………………… ………………………………………………………………………………….. [2 marks] [2 markah]

(c )

Using Diagram 6.1 and Diagram 6.2, compare: Menggunakan Rajah 6.1 dan 6.2, bandingkan: (i)

The distance between the two slits, a. Jarak di antara dua celah, a. …………………………………………………………………………... [1 mark] [1 markah]

(ii)

The wavelength, λ of the monochromatic light. Panjang gelombang, λ bagi cahaya monokromatik itu. …………………………………………………………………………. [1 mark] [1 markah]

(iii)

The distance between the double slits and the screen, D. Jarak di antara dwicelah dan skrin, D. …………………………………………………………………………. [1 mark] [1 markah]

(iv)

The distance between the fringes, x produced on the screen. Jarak di antara pinggir-pinggir, x yang terhasil di atas skrin. …………………………………………………………………………. [1 mark] [1 markah]

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(d)

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Using your answers in 6 (c) state the relationship between x and a . Menggunakan jawapan anda di 6(c) nyatakan hubungan antara x dan a

. ………..…………………………………………………………………………. [1 mark] [1 markah] Diagram 7.1 and 7.2 show two electric circuits containing semiconductor diodes. Rajah 7.1 dan Rajah 7.2 menunjukkan dua litar elektrik mengandungi diod semikonduktor. 7.



(i)

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What is the meaning of semiconductor? Apakah yang dimaksudkan dengan semikonduktor? 14 / LIHAT SEBELAH…

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(ii)

………………………………………………………………………… [1 mark] [1 markah] Based on Diagram 7.1 and Diagram 7.2, which bulb will light up when the switch is pressed? Berdasarkan Rajah 7.1 dan Rajah 7.2, mentol yang manakah akan menyala apabila suis ditekan? ………………………………………………………………………… [1 mark] [1 markah]

(iii)

Explain your answer in 7(a)(ii). Terangkan jawapan anda dalam di 7(a)(ii). ………………………………………………………………………… …………………………………………………………………………. [2 marks] [2 markah]

(b)

input

Diagram 7.3 shows an electric circuit which consists of the input and output signal displayed on the screen of the cathode ray oscilloscope (CRO). Rajah 7.3 menunjukkan satu litar elektrik yang mengandungi isyarat dan output yang dipaparkan pada skrin osiloskop sinar katod (OSK).

Diagram 7.3 Rajah 7.3 (i) box

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On Diagram 7.3, draw the symbol of a semiconductor diode in X.


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Pada Rajah 7.3, lukis simbol bagi diod semikonduktor dalam X. [1 mark] [1 markah]

kotak

(ii)

Name one electronic component that can be connected to the output as to smoothen the output signal produced. Namakan satu komponen elektronik yang boleh disambungkan pada output untuk meratakan isyarat output yang dihasilkan. ………………………………………………………………………… [1 mark] [1 markah]

(c)

The semiconductor diode in Diagram 7.3 cannot produce a steady output signal. Diod semikonduktor dalam Rajah 7.3 tidak boleh menghasilkan isyarat output yang mantap.

Diagram 7.4 Rajah 7.4 On Diagram 7.4; Pada Rajah 7.4; (i)

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Draw the arrangement of the diode semiconductors in the circles provided in box Y as to produce a more steady output signal. Lukis susunan bagi diod semikonduktor di dalam bulatan yang disediakan dalam kotak Y untuk menghasilkan isyarat output yang lebih mantap. [1 mark] [1 markah] 16 / LIHAT SEBELAH…

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(ii)

Complete the circuit by drawing the electronic component that named in 7(a)(ii) in box Y. Your drawing should show how the component is placed. Lengkapkan litar dengan melukis komponen elektronik yang namakan di dalam 7(a)(ii) dalam kotak Y. Lukisan anda seharusnya menunjukkan bagaimana komponen diletakkan. [1 mark] [1 markah]

(iii)

Draw the waveform produced at the screen of oscilloscope. Lukis bentuk gelombang yang dihasilkan pada skrin osiloskop. [1 mark] [1 markah]

you

anda itu

(d)

Name the process that occurs in Diagram 7.4. Namakan proses yang berlaku dalam Rajah 7.4 ………………………………………………………………………………….. [1 mark] [1 markah]

8.

Diagram 8 shows a system used in a factory to ensure the volume of dragon fruit juice is uniform. Rajah 8 menunjukkan satu sistem yang digunakan di sebuah kilang dalam memastikan isipadu jus buah naga adalah seragam

Diagram 8 Rajah 8

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The radioactive source, radiation detector and counter are used to detect the volume of dragon fruit juice. The radioactive source contains a radioisotope which radiates β particle. Sumber radioaktif, pengesan sinaran dan pembilang digunakan untuk mengesan isipadu jus buah naga. Sumber radioaktif mengandungi radioisotop yang memancarkan zarah β. (a) What is meant by a radioisotope? Apakah yang dimaksudkan dengan radioisotop? ………………………………………………………………………………… [1 mark] [1 markah] (b)

(i)

What is a β particle? Apakah zarah β? ……………….................................................................................. [1 mark] [1 markah]

(ii)

State one suitable detector to detect β particles in air. Nyatakan satu pengesan yang sesuai untuk mengesan zarah β di udara. ……………….................................................................................. [1 mark] [1 markah]

(c)

State one reason why the radioisotopes which emits the following radioactive radiation is not used in the system: Nyatakan satu sebab mengapa radioisotope yang mengeluarkan sinaran radioaktif berikut tidak digunakan dalam sistem itu: (i)

α particle Zarah α ……………….................................................................................. [1 mark] [1 markah]

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(ii)

γ rays Sinar γ

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

(d)

What is the type of material used for the container to store the radioactive source as to ensure safe keeping of the radioactive source? Apakah jenis bahan untuk digunakan bagi bekas untuk menyimpan sumber radioaktif bagi memastikan pentimpanan sumber radioaktif adalah selamat? ………………………………………………………………………………… [1 mark] [1 markah]

(e)

Table 8 shows the readings of the rate meter for 6 bottles which passing through the detector and radioactive source ? Jadual 8 menunjukkan bacaan meter kadar bagi 6 botol yang melalui pengesan dan sumber radioaktif. Bottle Botol

A

B

C

D

E

F

Rate meter reading (Count per minute) Bacaan meter kadar (Bilangan per minit)

464

468

467

462

568

470

Table 8 Jadual 8 Based on Table 8; Berdasarkan Jadual 8; (i)

Which bottle shows least volume of juice? Botol yang manakah menunjukkan isipadu yang tidak cukup? ……………….................................................................................. [1 mark] [1 markah]

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(ii)

State a reason for the answer in 8(e)(i). Nyatakan sebab jawapan di 8(e)(i). ……………….................................................................................. …………………………………………………………………………... [2 marks] [2 markah]

(f)

(i)

What can be observed at the rate meter’s reading if all the bottles and radioactive source are removed? Apakah yang dapat diperhatikan pada bacaan meter kadar jika kesemua botol dan sumber radioaktif dialihkan? …………………………………………………………………….......... [1 mark] [1 markah]

(ii)

Explain the answer in 8(f)(i). Terangkan jawapan dalam 8(f)(i). …………………………………………………………………….......... …………………………………………………………………….......... [2 marks] [2markah]

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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 and Diagram 9.2 show two identical frying pan filled with cooking oil of different amount used to fry an identical fish on a gas stove. The cooking oil has low specific heat capacity. Rajah 9.1 dan Rajah 9.2 menunjukkan dua buah kuali yang serupa berisi minyak masak dalam kuantiti yang berbeza digunakan untuk menggoreng seekor ikan yang serupa di atas sebuah dapur gas. Minyak masak itu mempunyai muatan haba tentu yang rendah.



After a few minutes, it was observed that the fish in Diagram 9.1 is scorched and the fish in Diagram 9.2 is well-cooked even though was fried under the same state of flame. Selepas beberapa minit, dapat diperhatikan ikan dalam Rajah 9.1 hangus dan ikan dalam Rajah 2 masak sempurna walaupun digoreng di bawah keadaan api yang sama. (a)

What is the meaning of specific heat capacity? Apakah yang dimaksudkan dengan muatan haba tentu?

(b)

Using Diagram 9.1 and Diagram 9.2, compare: Menggunakan Rajah 9.1 dan Rajah 9.2, bandingkan: (i)

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[1 mark] [1 markah]

The mass of the cooking oil used Jisim minyak memasak yang digunakan


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(ii)

The quantity of heat supplied Kuantiti haba yang dibekalkan.

(iii)

The final temperature of the cooking oil Suhu akhir minyak memasak. [3 marks] [3 markah]

(c)

Relate the mass of the cooking oil with the state of fishes to deduce the relationship between mass and an increase in temperature. Hubungkaitkan jisim bagi minyak memasak dengan keadaan ikan untuk membuat kesimpulan tentang hubungan antara jisim dan kenaikan

suhu. [2 marks] [2 markah] (d)

Diagram 9.3 shows a boy at the sea shore. Rajah 9.3 menunjukkan seorang budak lelaki berada di tepian pantai


tetapi

He feels the sea is cooler than land during the day but is warmer during the night. Explain why. Dia berasa laut adalah lebih sejuk daripada daratan semasa siang lebih panas semasa malam. Terangkan mengapa. [4 marks] [4 markah]

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(e)

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Diagram 9.4 shows a car engine radiator. Rajah 9.4 menunjukkan satu radiator enjin kereta.

Diagram 9.4 Rajah 9.4 You are required to design a car engine radiator which can function effectively, based on the following aspects: Anda ditugaskan untuk mereka bentuk sebuah radiator enjin kereta yang dapat berfungsi dengan berkesan, berdasarkan aspek-aspek berikut: -

The size of the fan Saiz kipas

-

The numbers of the fin blade Bilangan bilah sirip

-

The type and characteristics of the cooling liquid Jenis dan sifat-sifat cecair penyejuk [10 marks] [10 markah]

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10.

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Diagram 10.1 and Diagram 10.2 show the relative motion between the magnet and solenoid. The galvanometer’s pointer deflected due to induced current produced. Rajah 10.1 dan Rajah 10.2 menunjukkan gerakan relatif antara magnet bar dan solenoid. Jarum galvanometer terpesong disebabkan oleh arus aruhan dihasilkan.


(b)

What is the meaning of induced current ? Apakah yang dimaksudkan arus aruhan ?


[1 mark] [1 markah]

(i)

Using Diagram 10.1 and 10.2; compare the height of the magnet bar from the solenoid, the number of turns of wire at the and the angle of deflection of the galvanometer. Menggunakan Rajah 10.1 dan Rajah 10.3; bandingkan bar magnet daripada solenoid, bilangan lilitan dawai pada solenoid, dan sudut pesongan bagi galvanometer. [3 marks] [3 markah]

(ii)

State the relationship between: Nyatakan hubungan antara:

solenoid, ketinggian

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The number of turns of wire at the solenoid with the angle of deflection of the galvanometer. Bilangan lilitan dawai pada solenoid dengan sudut pesongan bagi galvanometer. [1 mark] [1 markah] The deflection of the galvanometer with the induced current produced. Pesongan bagi galvanometer dengan arus aruhan yang dihasilkan. [1 mark] [1 markah] (c)

The galvanometer’s pointer in Diagram 10.1 and Diagram 10.2 deflected in different direction. The observation can be explained by a physics’ law. Jarum galvanometer dalam Rajah 10.1 dan Rajah 10.2 terpesong dalam arah yang berlawanan. Pemerhatian ini boleh diterangkan oleh satu hukum fizik. (i)

(ii)

Name the physics’ law. Namakan hukum fizik itu.

[1 mark] [1 markah]

Diagram 10.3 shows a transformer. Rajah 10.3 menunjukkan sebuah transformer.

Diagram 10.3 Rajah 10.3 Explain why a transformer uses alternating current (a.c). Terangkan mengapa sebuah transformer menggunakan arus ulang alik (a.u). [3 marks] [3 markah]

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(d)

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Diagram 10.4 shows a cross-section of a bicycle dynamo. The output of the dynamo is connected to a bicycle lamp. Rajah 10.4 menunjukkan keratan rentas bagi sebuah dynamo basikal. Output dinamo itu disambung kepada sebuah lampu basikal.

Diagram 10.4 Rajah 10.4 Using appropriate physics concepts, explain the use of suitable ways and design to improve the brightness of the bulb. Menggunakan konsep fizik yang sesuai, terangkan kegunaan kaedah serta reka bentuk untuk meningkatkan kecerahan mentol. [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 the image seen by a magnifying glass. Rajah 11.1 menunjukkan imej dilihat menggunakan kanta pembesar


(i)

What is the type of lens used as a magnifying glass? Apakah jenis kanta yang digunakan sebagai kanta pembesar? [1 mark] [1 markah]

(ii)

Draw a ray diagram to show the formation of image by a magnifying glass. State the characteristics of the image formed. Lukiskan satu rajah sinar untuk menunjukkan pembentukkan imej oleh satu kanta pembesar. Nyatakan ciri-ciri imej yang terhasil. [4 marks] [4 markah]

PANEL G-CAKNA


SULIT/4531/2

(b)

MODUL G-CAKNA 2014

An object is placed 30 cm in front of a lens with a power of + 5 D. Satu objek diletakkan 30 cm di depan kanta berkuasa +5 D. (i)

(ii)

(iii)

(c)

Calculate the focal length of the lens Hitungkan panjang fokus kanta. Calculate the image distance Hitungkan jarak imej

Calculate the magnification of the image Hitungkan pembesaran bagi imej

[2 marks] [2 markah] [2 marks] [2 markah]

[1 mark] [1 markah]

Diagram 11.2 shows a compound microscope. A compound microscope is used to see a very tiny object. Rajah 11.2 menunjukkan sebuah mikroskop majmuk. Mikroskop majmuk digunakan untuk melihat objek yang sangat halus.

Diagram 11.2 Rajah 11.2 Table 11 shows the characteristics of four different simple microscope. You are required to determine the most suitable microscope to see tiny object clearly.Study the specifications of all the four microscopes from Table 11 below: Jadual 11 menunjukkan ciri-ciri bagi empat mikroskop ringkas. Anda dikehendakki menentukan mikroskop yang paling sesuai untuk melihat objek halus dengan jelas. Kaji spesifikasi keempat-empat mikroskop itu daripada Jadual 11 dibawah:

PANEL G-CAKNA


SULIT/4531/2

MODUL G-CAKNA 2014

Focal length of objective lens,fo / Focal length of Microscope Type of lenses eyepiece lens,fe Mikroskop Jenis kanta Jarak fokus kanta objek fo/ Jarak fokus kanta mata fe Concave P 60cm / 10 cm cekung Concave Q 10 cm / 60 cm cekung Convex R 4 cm / 6 cm cembung Convex S 6 cm / 4 cm cembung

Distance between two lenses, L (cm) Jarak antara dua kanta, L (cm)

Power of eyepiece Kuasa kanta mata

high tinggi Low rendah high tinggi low rendah

L > fo + fe L = fo + fe L > fo + fe L = fo + fe

Table 11 Jadual 11 Explain the suitability of each characteristic and then determine the most suitable microscope to enable tiny object seen clearly. Give reason for your choice. Terangkan kesesuaian setiap ciri dan seterusnya tentukan mikroskop yang paling sesuai untuk membolehkan objek halus dilihat dengan jelas. Beri sebab bagi pilihan anda. [10 marks] [10 markah] 12.

An electrical iron has a power rating 1 000 W, 240 V is used for 2 hours. Sebuah seterika elektrik mempunyai perkadaran kuasa 1 000 W, 240 V digunakan selama dua jam. (a)

What is the meaning of ‘1 000 W, 240 V’? Apakah yang dimaksudkan dengan ‘1 000 W, 240 V’?

(b)

Calculate; Hitung;

(i) marks]

[1 mark] [1 markah]

The electric energy consumed by the iron.

[2

Tenaga elektrik yang digunakan oleh seterika itu

[2

markah] PANEL G-CAKNA


SULIT/4531/2

MODUL G-CAKNA 2014

(ii) marks]

The electric current flows in the iron. Arus elektrik yang mengalir dalam seterika itu.

(c)

[2 [2 markah]

Diagram 12.1 shows a fuse. Rajah 12.1 menunjukkan satu fius.


(d)

(i)

Explain how a fuse works. Terangkan bagaimana sebuah fius berfungsi.

[2 marks] [2 markah]

(ii)

Based on the answer in 12(b)(ii), state the value for suitable fuse to be used in the iron. [1 mark] Berdasarkan jawapan dalam 12(b)(ii), nyatakan nilai yang sesuai bagi fius untuk digunakan dalam seterika itu. [1 markah]

(iii)

In the electrical wiring at a house, there are earth wire, neutral wire and live wire. To which wire a fuse is connected? Give one reason for your answer. Dalam pendawaian elektrik bagi sebuah rumah, terdapat dawai bumi, dawai neutral dan dawai hidup. Pada dawai yang manakah suatu fius itu disambung? Beri satu sebab bagi jawapan anda. [2 marks] [2 markah]

Table 12 shows four specifications of four type of metals, K, L, M and N, that can be used as a wire in a fuse. Jadual 12 menunjukkan empat spesifikasi empat jenis logam, K, L, M dan N yang boleh digunakan sebagai dawai dalam suatu fius.

PANEL G-CAKNA


SULIT/4531/2

MODUL G-CAKNA 2014

Type of metal Jenis logam

Melting point Takat lebur

Specific heat capacity Muatan haba tentu

K

High Tinggi

Low Rendah

High Tinggi

Thin Nipis

L

Low Rendah

High Tinggi

Low Rendah

Thick Tebal

Low Rendah High Tinggi

Low Rendah High Tinggi

High Tinggi High Tinggi

Thin Nipis Thick Tebal

M N

Resitance Rintangan

Thickness of wire Ketebalan dawai

Table 12 Jadual 12 You are required to determine the most suitable metal to be used as a fuse wire. Study the specifications of all the four metals based on the following aspects: Anda diminta untuk mengenal pasti logam yang paling sesuai untuk digunakan sebagai dawai fius. Kaji spesifikasi keempat-empat logam itu berdasarkan aspek-aspek berikut: -

The melting point of wire Takat lebur dawai

-

The specific heat capacity of wire Muatan haba tentu dawai

-

The resitance of wire Rintangan dawai

-

The thickness of wire Ketebalan dawai

Explain the suitability of the aspects. Terangkan kesesuaian aspek-aspek berikut. [10 marks] [10 markah] END OF QUESTION. SOALAN TAMAT. PANEL G-CAKNA


SKEMA/4531/2

SET 1

QUESTION

1(a)

MARKING SCHEME

Inverted / Virtual / Enlarged / Magnified

(b)(i)

MODUL G-CAKNA SUBMARK

TOTAL MARK

1

1

1 Atau

Mark dapat jika (b)(ii) betul (ii)

M1 M2

The object is at u < f Correct ray diagram & symbol of mirror (Shape of mirror bergantung kepada ray diagram untuk cahaya datang)

1 1

3

Syarat : M2 dapat jika objek, O dan imej, I dilabel

2(a)(i) (ii) (b)(i)

Electromotive force / e.m.f. 1.5 V ( with correct unit) M1 Calculate the gradient of graph

TOTAL

4M

1 1

2

1 𝐺𝑟𝑎𝑑𝑖𝑒𝑛𝑡 = M2

1.5 −1.0 0.0 − 0.4

2

State r = - gradient // state correct value of r 1.25 VA-1 / 

(ii)

// - 1.25

Increases

PANEL MODUL G-CAKNA

1 1

1

TOTAL

5M

1

SKEMA/4531/2

SET 1

QUESTION

3 (a) (b)

MARKING SCHEME


Electrical energy → Heat energy

1

M1

0.3 x 4200 x (100-28)

1

M2

90720 J (with unit)

1

M1

800 x 150 0.05

1

M2

2 x 106 Jkg-1 (with unit)

1

TOTAL MARK

1

2

2

Heat is used to overcome/break the attraction force/bonding between the molecules

4 (a) (b) (c)(i)

1 1 TOTAL

6M

Pascal’s principle (Correct spelling)

1

1

Produce air bubble at high temperature // Boiling point low

1

1

M1

1

Piston A has smaller surface area to produce big pressure

2 M2 (ii) (d)

Piston B has bigger surface area to produce big force at piston B Increase surface area of piston B // Decrease surface area of piston A 50 𝑥 15 M1 2 M2

375 N (With unit)

1 1

1

1 1

2

TOTAL

7M

Rate of change of momentum Terima jika beri rumus dengan memberi maksud kepada setiap simbol

1

1

(b) (i)

Diagram 5.1 > Diagram 5.2 // vice-versa

1

(ii)

Diagram 5.1 < Diagram 5.2 // vice-versa

1

(iii)

Diagram 5.1 > Diagram 5.2 // vice-versa

1

When time (of contact) decreases, displacement (of the ball) increases

1

When change of momentum is increases, the displacement (of the ball) increases

1

5 (a)

(c) (i) (ii)

PANEL MODUL G-CAKNA

3

2

2

SKEMA/4531/2

SET 1

QUESTION

(d) (i) (ii)

6 (a) (b)

MODUL G-CAKNA

MARKING SCHEME

F inversely proportional to t // F ∝

1 𝑡

F directly proportional to (mv – mu) / change of momentum // F ∝ change of momentum

SUBMARK

TOTAL MARK

1 1

2

TOTAL

8M

Light that has one colour / wavelength / frequency

1

1

M1 Overlapping between crest and crest / trough and trough producing a constructive interference / bright fringes

1

M2 Overlapping between crest and trough producing a destructive interference / dark fringes

1

2

(c) (i)

Diagram 6.1 < Diagram 6.2 / vice-versa // a1 < a2 / viceversa

1

(ii)

Same / equal

1

(iii)

Same / equal / D1 = D2

1

(iv)

Diagram 6.1 > Diagram 6.2 / vice-versa

1

(d)

7 (a)(i)

x∝

1 𝑎

4

1

1

TOTAL

8M

A material( that can) conduct (electricity) better than insulators but not as good as metal conductor

1

(ii)

Diagram 7.1

1

(iii)

M1 A diode only allow current to flow in one direction // Diode is in forward biased

1

1 1

2 M2 Resistance of diode is low

1

(b) (i)

1

(ii)

Capacitor

PANEL MODUL G-CAKNA

2

1

3

SKEMA/4531/2

SET 1

QUESTION

MARKING SCHEME


TOTAL MARK

(c) (i) (ii) (iii)

3 M1 Susunan diod betul M2 Kedudukan kapasitor selari dengan R (Terima tanpa label – symbol betul) M3 Bentuk waveform betul

1 1 1

* Terima kedudukan diod dan waveform terbalik (d)

Full wave rectification

1

1

TOTAL

10 M

1

8 (a)

- an unstable nuclei//unstable isotope

1

(b)(i)

Fast moving electron G-M tube -not strong enough to pass through the juice

1 1 1

(ii)

- will not be stopped by the juice

1

(d)

Lead container

1

E

1

(ii) (c) (i)

(e) (i) (ii)

(f) (i) (ii)

M1

the most radioactive emission pass through the juice

still there is reading shown

1

M1

1

3

1

TOTAL PANEL MODUL G-CAKNA

1

3 1

M2 back ground reading is from radioactive materials naturally present in soil, rock or cosmic radiation

2

1

M2 the reading of rate meter is the highest

back ground reading

2

12 M 4

SKEMA/4531/2

SET 1

QUESTION

MARKING SCHEME


TOTAL MARK

1

9 (a)

Quantity of heat required by 1 kg of mass to increase the temperature by 1oC

1

(b) (i)

Mass of cooking oil in Diagram 9.1 < Diagram 9.2 // viceversa

1

(ii)

Quantity of heat is equal / same

1

(iii)

final temperature in Diagram 9.1 > Diagram 9.2

1

(c)

M1

When mass of cooking oil is small, the fish is overcooked /scorched // vice-versa

1

M2

When mass is small, increase in temperature is high // mass inversely proportional to increase in temperature

1

M1

During the day, the sea and the land receive the same amount of heat from the sun

1

M2

Land heated to a high temperature because land has low specific heat capacity // vice-versa

1

M3

During night, air above the land and sea release Heat

1

M4

Temperature of the sea decreases slowly because water has low specific heat capacity // vice-versa

1

M1

Size of fan big

1

M2

More wind blows to cool the hot water faster

1

M3

Number of fins many

1

M4

Can cool the engine faster

1

M5

Cooling liquid is water

1

M6

High specific capacity// high boiling point//cheap//easily available//does not react with the inner part of engine

1

M7

Liquid that has high specific heat capacity

1

M8

Transfer large quantity of heat with small increase in temperature

1

M9

Liquid of high boiling point

1

(d)

(e)

PANEL MODUL G-CAKNA

3

2

4

10

5

SKEMA/4531/2

SET 1

QUESTION

MARKING SCHEME

M10 Not easy to vapor when absorb heat from the engine

10 (a)

(b)(i)

(ii)

(c)(i) (ii)


TOTAL MARK

1 TOTAL

10 M

Current that produced when there is a relative motion between a wire conductor and a solenoid, the magnetic field is cuts

1

1

M1

The height is equal

1

M2

Number of turns in Diagram 10.1 < Diagram 10.2 // vice-versa

1

M3

Angle of deflection in Diagram 10.1 < Diagram 10.2 // vice-versa

1

M1

When number of turns increases, angle of deflection increases // vice-versa

1

M2

When the induced current produced increases, the deflection of the galvanometer increases // viceversa

1

2

Lenz’s law (Correct spelling)

1

1

M1

When ac current produced, the soft iron core is magnetised and demagnetized

1

M2

Producing a changing magnetic flux

M3

Producing an induced voltage at secondary coil

1

M1

Increase speed of rotation

1

M2

Increase the rate of cutting of magnetic flux

1

M3

Use a stronger magnet

1

M4

To produce more magnetic flux

1

M5

Increase the number of turns at coil

1

M6

More magnetic flux is cut

1

M7

The coil is wound on a soft iron core

1

M8

Increase the strength of magnetic flux

1

3

1

(d)

PANEL MODUL G-CAKNA

3

10

6

SKEMA/4531/2

SET 1

QUESTION

MARKING SCHEME


M9

Increase the area of cross section/ thickness / diameter of wire at coil

1

M10

Decrease resistance, more current is induced

1 TOTAL

11 (a) (i)

Convex lens

TOTAL MARK

20 M

1

(ii)

4

(b) (i)

(ii)

M1

Object at u < f

1

M2

Ray refract to F and ray pass through center of lens

1

M3

Virtual line and image is labeled

1

M4

State : Virtual, Upright, Magnified

1

M1

1 5

1

//

100 5

M2

0.2 m // 20 cm

M1

1 20

−

1 30

M2 60 cm // 0.6 m (Dengan unit) (iii)

60 30

// 2 (tanpa unit)

PANEL MODUL G-CAKNA

1 1 5 1

1

7

SKEMA/4531/2

SET 1

MODUL G-CAKNA

(c) Characteristics Type of lenses Jenis kanta: convex Focal length of objective lens,fo / Focal length of eyepiece lens,fe Jarak fokus kanta objek fo/ Jarak fokus kanta mata fe, 4 cm / 6 cm Distance between two lenses, L (cm) Jarak antara dua kanta, L (cm) L > fo + fe Power of eyepiece Kuasa kanta mata High / tinggi Choosen : R

Explanation Produce real image 1, 1 Both lenses have high power of the lens to produce bigger image

1, 1

Normal adjustment to produce sharp image 10 1,1

Eyepiece act as magnifying glass to magnified the image Because R are convex lenses,has f0= 4 cm and fe = 6 cm, L > fo + fe and has high power of eyepiece.

1.1

1,1

TOTAL

20 M 1

12 (a)

1 000 J of energy is consumed in 1 s when connected to a 240 V power supply

1

(b) (i)

M1

1 000 x 2 x 60 x 60

1

M2

7.2 x 106 J (With unit)

1

(ii)

(c) (i)

M1

1000 240

1 1

M2

4.17 A (with unit)

M1

When high current flows / short circuit occurs

1

M2

The wire in the fuse will melt and break the circuit

1

(ii)

5A

1

(iii)

M1 Live wire

1

M2

1

PANEL MODUL G-CAKNA

Because live wire carries current

4

2 1 2

8

SKEMA/4531/2

SET 1

QUESTION

(d)

MARKING SCHEME


M1

Melting point is low

1

M2

Easy to break the circuit when high current flows through it

1

M3

Low specific heat capacity

1

M4

Easy to get hot

1

M5

High resistance

1

M6

Easy to get hot

1

M7

Thickness of wire small / thin wire

1

M8

High resistance // Easy to hot // less mass // requires small space

1

M9

M

1

M10

Because (M1,3,5 & 7 / M2,4.6.8)

1 TOTAL

TOTAL MARK

10

20 M

SKEMA TAMAT.

Skema ini adalah cadangan jawapan. Jika ada jawapan lain yang setara adalah mengikut budi bicara tuan/puan.

PANEL MODUL G-CAKNA

9

Modul Fizik Cakna Kelantan SPM 2014 K2 Set 1 Dan Skema

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