1. 1994 Q3a P2
(a) State Hooke's law (1 mark)
2. 1999 Q11 P1
A wire fixed at one end extends by 4mm when a load of 20N is suspended from the other end. Determine the load that would cause an extension of 1.5 mm on the wire (assume elastic limit is not exceeded)
3. 2002 Q10 P1
Fig. 5 shows a wire A and a spring B made of the same material. The thickness of the wire is the same in the both cases. Masses are added on each at the same intervals and the extension noted each time.
1. 1996 Q24 P1
State how the pressure in a moving fluid varies with the speed of the fluid (1 mark)
2. 1997 Q18 P1
Water flows in a horizontal smooth pipe. State the changes that would be observed in the nature of the flow if the speed of the water is steadily increased from low to a high value
3. 1998 Q30 P1
Fig 9 shows a Bunsen burner.
1995 Q33 P1
What is meant by the centre of gravity of a body? (1 mark)
1998 Q7 P1
State one advantage of fitting wide tyres on a vehicle that moves on earth roads.
1999 Q3 P1
State how the position of the centre of gravity of a body in stable equilibrium changes to that in the rest position when the body is slightly tilted and then released.
1. 1995 Q8 P1
One property of a liquid that is considered while construction a liquid – in – glass thermometer is that the liquid expands more than the glass for the same temperature change. State any other two properties of the liquids that are considered (2 marks)
2. 1995 Q34 P1
State two variables that must be controlled in an experiment for comparing the thermal conductivity of different metal rods of the same diameter (2 marks)
3. 1996 Q6 P1
Give a reason why a concrete beam reinforced with steel does not crack when subjected to changes in temperature ( 2 marks)
1. 1996 Q11 P1
Name two forces that determine the shape of liquid drop on the solid surface. (2 marks)
2. 1996 Q37 P1
In the Brownian motion experiment, smoke particles are observed to move randomly. Explain how this motion is caused (2 marks)
3. 1997 Q25 P1
Ice changes to water at 00C. Equal masses of the ice and water at 00C are each heated to 10C. Give a reason why more heat energy is required to heat ice.
4. 1998 Q23 P1
Cleavage in crystals is possible in certain directions only. Explain this observation.
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