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+

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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

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PAPER 1 (Knowledge, understanding and application)

1. Delete all the wrong options then choose 2. For difficult questions: 3. Decide the correct concept first 4. Calculation questions: Refer to the formulas given

One step calculation only Note: Remember! Blacken each finished answer immediately

PAPER 2 (Knowledge, understanding and application) Question No.1-No.4

1. Decide on the correct concept first. 2. Write the facts/concept/formula that is connected to the related sub topic (related

to the question) 3. Understand the tasks 4. Refer to the marks stated- one point for one mark. 5. Answer in simple words but meaningful related to physics concept. 6. Use correct terminology 7. Understanding and qualitative application

• explain step by step(imaging the marker does not know the physics) 8. 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. Every items starting with stimulus (situation). 2. Stimulus or situation can be in diagram, table, chart or graph. 3. Look at the diagram, table, and chart or graph carefully. 4. State only what is in the diagram, table, chart or graph 5. Understand the tasks:

• Comparison :State the similarities and differences(if there is any) • Differences: State characteristics that are different • Similarities : State the same characteristics

6. Relationship : directly proportional/ inversely proportional/ When ……. increases, ……… Increases/decreased.

7. Name the law/principle/concept involved.

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Problem Solving Questions No. 7 and No.9 or No.10 Structured Question: 1. Very sure of the concept/ understand the working principle of apparatus and it’s

function. 2. Understand the questions/follow the instructions given. 3. 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 Explanation/reason 5 5

Guided type Question- usually working principle of apparatus 1. Follow the instruction in the question. 2. Answer can be in the form of diagram or essay. 3. State the method/ways and reasons. Common mistakes: 1. Suggestion of problem solving does not based on relevant physical concept 2. Give wrong/irrelevant explanation/reason 3. Give redundant/overlap suggestion/method

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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 Explanation/ reason 4 4

4. Make a ranking based on chosen characteristics 5. Make a justification 6. State the reason Common mistakes 1. Elaborate all characteristics 2. Rewrite the value of characteristic given without stating low or high 3. Does not state all characteristics/ reasons after making a justification

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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

Modifications Explanation

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.

Characteristic Reason

[ ] is chosen.

Reason : It has ….

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. Useful Physics Terminologies for Paper 2 JUJ Pahang

No. TERM VALUE MEANING

Low / small Lighter / easy carry/not heavy 1 Density

High / large Heavier / more compact

Small Spring is soft / easy to stretch 3 Spring constant (k)

Large / big Spring is stiff / difficult to stretch

Low / small Easily heated up , short time to heat up

Need less heat to raise temperature 4 Specific Heat Capacity (c)

High / large More difficult to heat up, takes more time to heat up

Need more heat to raise temperature, use more fuel

Low / small Need less heat to melt / vaporise

Time to melt / vaporise is shorter 5 Specific Latent Heat (l)

High / large Need more heat to melt / vaporise

Time to melt / vaporise is longer

Short

Decays faster

Reactivity decreases faster

6 Half-life

Long

Decays slowly

Reactivity decreases slowly

Radioactivity lasts longer

Low

Melts at low temperature / Freezes at low temperature.

Starts melting earlier / Starts freezing later 7

Melting point /

Freezing point

High

Melts at higher temperature / Freezes at higher temperature.

Starts melting latter / Starts freezing earlier

8 Rigidity Low Changes shape easily when acted upon by external force

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High Does not change shape easily when acted upon by external force

Low Breaks easily / breaks under small external force 9 Strength

High Difficult to break / Needs a large force to break Low Does not rust easily / quickly 10 Rate of rusting

High Rust easily / quickly

Low Starts boiling at lower temperature Starts boiling earlier Slower to begin condensation 11 Boiling point

High Starts boiling at higher temperature Starts boiling latter Faster to begin condensation

Low / small Substance that refracts light less 12 Refractive index

High / large Substance that refracts light more

Small Easier for total internal reflection to occur 13 Critical angle

Large / big Difficult for total internal reflection to occur

Low Large / long focal length Refract light less 14 Power (of a lens)

High Short focal length Refract light more

Short Higher power 15 Focal length

Large / long Lower power

19 Frequency (of electromagnet wave) High Short wavelength

High penetration power

20 Wavelength (for electromagnet wave) Long / large Low frequency

Low penetration power

21 Frequency (sound) High High pitch Short wavelength Spreads out less

22 Resistivity Low / small Having lower resistance compared to wires of the same thickness and length.

High / large 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+”