7/29/2019 Ramalanku Benar Belaka Fizik 2012

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Ramalanku benar belaka..FIZIK

BAHAGIAN A :

1 (4 mrks)

Introduction to Physics :

Micrometer screw gauge and zero error

2 ( 5 mrks)

Force and motion :

Definition of a force.

Net force, forces in equilibrium, F =ma

3( 6 marks)

Forces and pressure :

Definition of pressure .

Pressure, pressure and depth, calculation of pressure

4 (7 mrks)

Heat :Definition of specific heat capacity.

Specific heat capacity and calculations.

Gas laws .

5 ( 8 mrks)

Floatation:

Definition of buoyant force .

Buoyant force and calculations.

Hot air balloons ( compare small and big balloons )in terms of buoyant force .

6 ( 8 mrks)

Waves :

Definition of interferenceInterference of light, Youngs double slits experiment

Calculation of wavelength using = ax/D

Comparing the fringes using blue light band red light .

7 ( 10 marks)

Electricity

Definition of power and specifications

Calculation of I = P/V .

Effective resistance, Resistor in parallel and series, calculation of electrical energy, and power

Modifications of circuits and reasons to give smaller effective resistance ,R

8 ( 12 marks )

Electronics;

What is semiconductor ?

Rectification circuits, choose the correct one for full wave rectification and give reasons.

Transistor as a switch, relay, LDR, thermistor and get circuit .

Most suitable circuit for street light , certain function and give reasons.

SECTION B :

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9 ( 20 mrks )

Form 4 topic :

Light;

Focal length, power= 1/ f , lens equation,

How magnifying glass works ?

How telescope works , ray diagrams

10 ( 20 mrks )

Form 5 topic :

Radioactivity

Radioisotope, decay graph, half-life.

Use of radioisotope in industry to detect the volume of liquid in a container . Suggestions.

11 ( 20 mrks )

Force and pressure :

Fluid in motion : pressure and velocity of flow.

Bernoullis principle, lift force,

Explanation of lift force using aerofoil

Suggestions to make a water rocket that can reached high altitude.

12 ( 20 mrks )

Electromagnetism:

What is direct current ?

Specifications of motor, explain how a motor works .

Calculation of current in motor ,

Choosing a fan that can produce fast cooling effect.

or transfomer

Choose the transformer that that is of high efficeinecy .

PAPER 3 :

1 Light :

Experiment to investigate relationship between u and v.

A straight line graph passing through origin fro graph uv against

( u+v )

or can also be refraction of light ;

Read also the snell law : how to read a protractor to find angle of incident and refraction.

2 Graph of voltage across a dry cell against current to find e.m.f and internal resistance.

Calculation of gradient of graph.

3 Heat : Specific heat capacity

To investigate the relationship between mass, m and temperature rise at constant electrical energy supplied.

Using immersion heater and thermometer , etc.

4 Waves : Refraction

To investigate the relationship between wavelength and depth .

Using ripple tanks and accessories