Bahan seminar Fizik SPM Tahun 2010 Fizik SPM Paper 2 Oleh : Mohd Khairul Anuar bin Md Mustafa SMK Seri Mahkota Anjuran: SMK Seri Pekan, Pekan
SKOR A+
2 TIPS TO SCORE IN PHYSICS
1
Master the definition of the terms in Physics Example: Specific heat capacity, specific latent heat, pressure, work, force, momentum, energy, force in equilibrium, half-life, interference, efficiency ,
2
Master the principles in Physics & their applications Conservation of Momentum, Conservation of energy, Archimedes’ Principle Pascal’s Principle, Bernoulli’s Principle, Force in equilibrium, Thermal equilibrium.
3
Master the laws in Physics & their applications Hooke, Boyle, Newton, Charles, Pressure, Reflection, Snell, Refraction, Ohm, Faraday, Lenz
4
Master the Physics rules Right-hand Grip Rule, Fleming’s left hand, Fleming’s right hand
5
Master all the experiment in Physics All experiments in form 4 and form 5
6
Master the contents in Physics Check list
7
Master drawing skills Electric circuit diagram, Lens ray, Mirror ray, Apparatus diagram, Experiment diagram
8
Master the working principal of the apparatus Hydrometer, Telescope, Manometer, Microscope, Barometer, Nuclear reactor, Bunsen burner, Fiber optic, Carburetor, Electric bell, Electric Motor, Electric generator, Hydraulic brake, Submarine, CRO, Periscope, Diode Binocular, Transistor,
9
Master the graph skill Draw, sketch, Analyst, Determine the gradient
3 PAPER 1 (Knowledge, understanding and application ) 1. 2. 3. 4.
Delete all the wrong options then choose For difficult questions: Decide the correct concept first Calculation questions: Refer to the formulas given One step calculation only Note: Remember! Blacken each finished answer immediately
1. 2. 3. 4. 5. 6. 7. •
8. • • •
PAPER 2 (Knowledge, understanding and application ) Question No.1-No.4 Decide on the correct concept first. Write the facts/concept/formula that is connected to the related sub topic (related to the question) Understand the tasks Refer to the marks stated- one point for one mark. Answer in simple words but meaningful related to physics concept. Use correct terminology Understanding and qualitative application explain step by step(imaging the marker does not know the physics) Calculation: Choose & Write the relevant formula – 1 Mark Substitute the values correctly Answer with correct unit
Conceptualising Questions No.5, No.6 and No.9 or No.10 1. 2. 3. 4. 5.
Every items starting with stimulus (situation). Stimulus or situation can be in diagram, table, chart or graph. Look at the diagram, table, and chart or graph carefully. State only what is in the diagram, table, chart or graph Understand the tasks: Comparison :State the similarities and differences(if there is any) Differences: State characteristics that are different Similarities : State the same characteristics Relationship : directly proportional/ inversely proportional/ When ……. increases, ……… Increases/decreased. Name the law/principle/concept involved. • • •
6. 7.
4 Problem Solving Questions No. 7 and No.9 or No.10 Structured Question: 1. 2. 3.
Very sure of the concept/ understand the working principle of apparatus and it’s function. Understand the questions/follow the instructions given. State the methods and reasons / explanations.
Essay type question: Open type question 1. Understand the problem given 2. State the method/suggestion/ design / modification to solve the problems 3. State the explanation for the each method /suggestion/ design (Suggestion: use table) method/suggestion/ design/modification 5
Explanation/reason 5
Guided type Question- usually working principle of apparatus 1. 2. 3.
Follow the instruction in the question. Answer can be in the form of diagram or essay. State the method/ways and reasons.
Common mistakes: 1. 2. 3.
Suggestion of problem solving does not based on relevant physical concept Give wrong/irrelevant explanation/reason Give redundant/overlap suggestion/method
5 Making Decision (Questions No. 8 and No.11 or No.12) Structured: 1. Guided decision making 2. Follow the instructions in the questions 3. Justify your answer with reasons
Essay: 1. Question will state the characteristics in the form of diagram or table Study the characteristics carefully 2. Choose the suitable characteristics according to the need of the question. Use the word low or high 3 Explain the chosen characteristics •
•
(Suggestion- table form) Characteristic 4 4. 5. 6.
Explanation/ reason 4
Make a ranking based on chosen characteristics Make a justification State the reason
Common mistakes 1. 2. 3.
Elaborate all characteristics Rewrite the value of characteristic given without stating low or high Does not state all characteristics/ reasons after making a justification
6 TIPS FOR PAPER 2 Section B (Essay)
1.
To answer the question of definition of the terms, concepts, principles or Physics law need to state in a sentence. The answer in form of formula is not acceptable.
2.
To answer the questions of comparison, state the similarities and differences between the given diagrams.
3.
Use diagrams or graphs whenever necessary to make the points clearer.
4.
Pay attention to the marks allocated. The marks usually indicate the number of points required.
5.
Answer in table form for suggested modifications. e.g
Section C (Essay)
1. To answer question “ explain the suitability of each characteristics and determine the most suitable …. .”, identify 4 different characteristics from the given diagrams or table. The answer must be in table form.
[ ] is chosen.
Reason : It has ….
7
Useful Physics Terminologies for Paper 2 JUJ Pahang
.
No.
1
3
TERM
VALUE
MEANING
Low / small
Lighter / easy carry/not heavy
High / large
Heavier / more compact
Small
Spring is soft / easy to stretch
Large / big
Spring is stiff / difficult to stretch
Density
Spring constant (k) Easily heated up , short time to heat up Low / small Need less heat to raise temperature
4
Specific Heat Capacity (c) More difficult to heat up, takes more time to heat up High / large Need more heat to raise temperature, use more fuel Need less heat to melt / vaporise Low / small Time to melt / vaporise is shorter
5
Specific Latent Heat (l) Need more heat to melt / vaporise High / large Time to melt / vaporise is longer Decays faster Short
6
Reactivity decreases faster Decays slowly
Half-life Long
Reactivity decreases slowly Radioactivity lasts longer
Low
Melts at low temperature / Freezes at low temperature.
Melting point /
Starts melting earlier / Starts freezing later
Freezing point
Melts at higher temperature / Freezes at higher temperature.
7 High
Starts melting latter / Starts freezing earlier 8
Rigidity
Low
Changes shape easily when acted upon by external force
8
9
Strength
10
Rate of rusting
High
Does not change shape easily when acted upon by external force
Low
Breaks easily / breaks under small external force
High
Difficult to break / Needs a large force to break
Low
Does not rust easily / quickly
High
Rust easily / quickly
Low 11
Boiling point High
12
13
Low / small
Substance that refracts light less
High / large
Substance that refracts light more
Small
Easier for total internal reflection to occur
Large / big
Difficult for total internal reflection to occur
Refractive index
Critical angle
Low 14
Power (of a lens) High
15
19 20
Starts boiling at lower temperature Starts boiling earlier Slower to begin condensation Starts boiling at higher temperature Starts boiling latter Faster to begin condensation
Large / long focal length Refract light less Short focal length Refract light more
Short
Higher power
Large / long
Lower power
Focal length Frequency (of electromagnet wave) Wavelength (for electromagnet wave)
High Long / large
21
Frequency (sound)
High
22
Resistivity
Low / small High / large
Short wavelength High penetration power Low frequency Low penetration power High pitch Short wavelength Spreads out less Having lower resistance compared to wires of the same thickness and length. Having higher resistance compared to wires of the same thickness and length.
23
e.m.f. of cell
Large / big
Supply a larger current through the same resistance.
24
Power (of electrical device)
High / large
Uses more energy per second
25
Voltage (working voltage of electrical device)
High
Needs a smaller current to produce a fixed amount of power.
Kepada pelajar SMK Seri Pekan, Pekan: Insyaallah “Physics SPM 2010 : A+”
