CHECKLIST 1 2008
No. Question
1. (a) What is impulsive force?
(b) State the formula to calculate impulsive force
(c) An egg is dropped from a double storey building. Suggest a way to ensure
that the egg will not break when it lands on the ground.
2. (a) State Boyle’s law.
(b) Explain why a bubble of air produced at the bottom of an aquarium increases
when it moves up.
(c) State the formula from Boyle’s Law.
3. (a) What is pressure?
(b) Explain the working principle of a vacuum pump.
(c) Explain the working principle of a hydraulic brake based on type of liquid,
properties of liquid, size of pistons.
4. (a) State Archimedes Principle.
(b) Explain an experiment to verify Archimedes Principle.
5. (a) What is thermal equilibrium?
(b) Explain how a liquid-glass thermometer can be use to measure the body
temperature of a sick person. Explain heat transfer that takes place at each
stage of measurement.
(c)
Diagram shows the change of phase when 1 kg ice is converted into steam.
Q1, Q2 and Q3 are the heat energies absorbed during the heating process.
(i) Name the heat energy, Q1, which is absorbed from R to S.
(ii) State one reason why the temperature at R and S is the same even
though heat is supplied.
(iii) Calculate the heat energy, Q2, which is absorbed from S to T.
(The specific heat capacity water of water,C = 4200 Jkg-1 °C -1)
(d) Draw a diagram of a vacuum flask to store hot water.

6. (a) Draw a ray diagram of a magnifying glass.
(b) Draw a ray diagram of an astronomical telescope?
(c) State the formula to determine the magnification of an astronomical
telescope.
(d) Explain the working principle of an astronomical telescope.
7. (a) What is meant by wavelength?
(b) What is refraction of water wave?
(c) With use of a ripple tank explain an experiment to show the refraction of
water wave.
8. (a) Define what is Ohms Law.
(b) Draw the electric circuit used in Ohms Law experiment.
(c) Draw the electric circuit used in an experiment to determine the e.m.f and
internal resistance of a cell.
(d) State the characteristics of a series circuit.
(e) State the characteristics of a series circuit.
(f) What is potential Difference?
(g) Calculation of efficiency and power loss.
(h) What is meant by 240V 30?
(i) Why the a coil filament is used in a bulb?
(j) Why tungsten is the material used to made the filament in a bulb?
(k) Why is thin wire is used to made the filament?
(l) Why gas of low pressure is used the bulb?
9. (a) What is magnetic field?
(b) Draw the magnetic field pattern of a magnadur magnet.
(c) Draw the magnetic field pattern of a current carrying conductor.
(d) Draw the pattern of a catapult field?
(e) Explain the working principle of a moving coil ammeter.
10. (a) What is logic gate?
(b) Draw the symbol for gate AND, OR and NOT gate.
(c) Draw an electric circuit to show the function of AND,OR and NOT gate.
(d) Determine the truth table for the NAND gate.
(e) Draw the an electric circuit to show the function of a transistor as
automatic switch.
(f) What is cathode ray?
(g) Draw the diagram of a CRO.
(h) State the function of every part of a CRO.
(i) Explain how the green dot is formed on the screen of a CRO.

10. (a) What is neutron number?
(b) What is proton number?
(c) What is nucleon number?
(d) What is isotope?