K.C.S.E Physics Q & A - MODEL 2005PP1QN03
​The light uniform bar in Fig 3 is equilibrium. The two beakers A and B contain water at the same temperature. The two blocks are made of the same material.
​If the temperature of the water in beaker A is now raised, explain why the beam tips to side A.
Assume the solid does not expand.
answer
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K.C.S.E Physics Q & A - MODEL 2005PP1QN02
​ Fig 2 shows a solid cylinder standing on a horizontal surface. The cylinder is in stable equilibrium
​On the horizontal space provided, sketch the cylinder in neutral equilibrium
answer
K.C.S.E Physics Q & A - MODEL 2005PP1QN01
​ Figure 1 shows the reading on a burette after 55 drops of a liquid have been used.
If the initial reading was at Zero mark, determine the volume of one drop.
answer
K.C.S.E Physics Q & A - MODEL 2004PP2QN06
​a) You are provided with two identical tuning forks and some plasticine.
Describe how you would demonstrate beats in sound. b) Fig 8 shows a set up that was used in an experiment to determine the speed of sound air 
Turning forks of different frequencies were sounded near the mouth of the open tube and by lowering the reservoir, the list two resonant lengthsL1 L2 were ensured for each frequency.
Table 1 shows the results obtained. 
​(i) Complete the table. On the grid provided, plot the graph of l2– l1 (y-axis ) against 1/f
(ii) From the graph determine the speed V of sound in air given that 12-11 = v/2r. Therefore V= 2f(12 – 11) (iii) Explain how resonance is attained in this set up.
answers
K.C.S.E Physics Q & A - MODEL 2004PP2QN01
​a) A test tube of uniform cross-section loaded so that it can float upright in water. With the aid of a labeled diagram, describe how the test tube may be calibrated to measure the density of liquid.
​b) In an experiment to determine the density of a liquid, a uniform metal cylinder of cross-section area 6.2cm was hang from a spring balance and lowered gradually into the liquid. The up thrust was determined for various submerged lengths. The results obtained are shown on the graph in Fig 1.
Using graph, determine;
(i) The value of the up thrust when the cylinder is fully submerged (ii) The Density of the liquid
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