K.C.S.E Physics Q & A - MODEL 2004PP1QN11
​ Figure 7 shows the poles of two magnets close together.
​Figure 8 shows a current-carrying coil in a magnetic field.
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K.C.S.E Physics Q & A - MODEL 2004PP1QN10
State one way of reducing surface tension in water.
answer
K.C.S.E Physics Q & A - MODEL 2004PP1QN09
State the purpose of Manganese dioxide in a dry cell
answer
K.C.S.E Physics Q & A - MODEL 2004PP1QN08
​Figure 6 (a) shows three spherical balls of the same size placed on insulating stands. Balls A and B are conductors while ball C is non conductor. Ball A was initially charged as shown. The quantity of charge is represented by the number of dashes.
​Ball A is made to touch B momentarily and then C. Show on Figure 6(b), the final distribution of charge on the balls.
K.C.S.E Physics Q & A - MODEL 2004PP1QN07Figure 5 shows two mirrors inclined at an angle of 600 to each other. A ray of light is shown
Sketch the same diagram, the path of the ray until it leaves the two mirrors. Indicate the angles at each reflection.
answer
K.C.S.E Physics Q & A - MODEL 2004PP1QN06
​Two identical aluminium rods as shown in figure 4. One rests on metal block the other on the wooden Block. The protruding ends are heated on a Bunsen burners shown.
​State with reason on which bar the wax is likely to melt.
answer
K.C.S.E Physics Q & A - MODEL 2004PP1QN05The temperature of water in a measuring cylinder is lowered from about 200 c to 00. On the axes provided, sketch the ap1i of the Volume against temperature issuming the water does not freeze.
K.C.S.E Physics Q & A - MODEL 2004PP1QN04
Give a reason why water is not a suitable liquid for use in a barometer
answer
K.C.S.E Physics Q & A - MODEL 2004PP1QN03
​ Fig 3 shows a rectangular block of wood with a hollow section (inside) at the position shown.
The block is resting on a Horizontal bench
​(i) State the effected on the stability of the block when the hollow section is filled with water.
ii) Explain your answer in (i) above.
answers
i)Stability reduced/Lower /less stable
(ii)Upper section heavier/hollow section becomes heavy/more massive top Raising the c.o.g of the block. K.C.S.E Physics Q & A - MODEL 2004PP1QN02
​The system in figure 2 is in equilibrium at room temperature.
The system is taken outside where the temperature is 10°c higher for sometime.
Explain why it tips to the right immediately it is returned to the room
answer
K.C.S.E Physics Q & A - MODEL 2004PP1QN01
​Figure 1 shows a micrometer screw gauge being used to measure the diameter of a ball bearing.
A magnified portion of the scale is shown.
​Record the diameter of the ball bearing
answer
K.C.S.E Physics Q & A - MODEL 2003PP2QN07
a) Fig. 8. shows an experimental set up consisting of a mounted lens. L, a screen, s, a meter rule and a candle.
​(i) Describe how the set-up may be used to determine the focal length, f, of the lens.
(ii) State the reason why the set-up would not work if the lens were replaced with a diverging lens. (b) The graph in figure 9. shows the relationship between 1/r and 1/v for converging lens where u and v are the object and image distances respectively.
​For the graph, determine the focal length, f of lens.
(c) An object placed 15cm from a convex lens is magnified two times. Determine the focal length of the lens. K.C.S.E Physics Q & A - MODEL 2003PP2QN06
​a) Figure 6 shows a simple set up for pressure law apparatus.
​Describe how the apparatus may be used to verify pressure law. Initial reading of pressure and temperatures are recorded.
b) The graph in fig 7 shows the relationship between the pressure and temperature for a fixed mass of an ideal gas at a constant volume.
​(i) Given that the relationship between pressure, p, and temperature, T n Kelvin is of the form P = kT+ C where k and C are constants, determine from the graph, values of k and c.
(ii) Why would it be impossible for pressure of the gas to reduced to zero in practice? (c) A gas is put into a container of fixed volume at a pressure of 2.1 x 105 N/m2 and temperature 27C. the gas is then heated temperature of 327C. Determine the new pressure. K.C.S.E Physics Q & A - MODEL 2003PP2QN05
a) States what is meant by electromotive force (em.f) of battery.
b) The graph in figure 5 shows the terminal voltage, V, of a certain battery varies with the current, I, being drawn from the battery.
​(i) Write an expression relating the e.m.f. E, terminal voltage, V, current, I and the internal resistance, r, of the battery for the circuit drawn in
(i) above. (iii) From the graph determine the; I internal resistance, r, of the battery. (C) A galvanometer of resistance 10ohms gives a full-scale deflection when a current of 0.03A flows through it. Determine the resistance of the resistor, which would be required to convert the galvanometer to an ammeter reading up to 3.0a K.C.S.E Physics Q & A - MODEL 2003PP2QN04
​a) Figure 3 shows a transverse wave traveling along x-axis.
​(i) Determine the:
I Wavelength of the wave II Amplitude of the wave. (ii) If the time taken by the wave to move from 0 to A is 0.09 seconds, determine the: I Frequency of the wave. II Speed of the wave b) Figure 4 shows a Geiger muller (GM) tub
(i) Give the reason why the mica window is made thin.
(ii) Explain how the radiation entering the tube through the window is detected by the tube. (iii) What is the purpose of the halogen vapour K.C.S.E Physics Q & A - MODEL 2003PP2QN03
​a) State what is meant by the term "specific latent heat of vaporization"
b) In an experiment to determine the specific latent heat of vaporization of water, steam at 100C was passed into water contained in a well-lagged copper calorimeter. The following measurements were made; (i) Determine the: I Mass of condensed steam II Heat gained by water Heat gained by calorimeter
​(ii) Given that L is the specific latent heat of vaporization of steam,
I write an expression for the heat given out steam. II Determine the value of L. K.C.S.E Physics Q & A - MODEL 2003PP2QN02
​a) A crane lifts a load of 200kg through a vertical distance of 3.0m in 6 seconds.
Determine: (i) Work done (ii) Power development by the crane. (iii) Efficiency of the crane given that it is operated by an electric motor rated 12.5kW. (b) A child of mass 20kg sits on a swing of length 4m and swings through a vertical height of 0.9m as shown in figure 2.
​Determine:
(i) Speed of the child when passing through the lowest point. (ii) Force exerted on the child by the seat of swing when passing through the lowest point. K.C.S.E Physics Q & A - MODEL 2003PP2QN01
​a. Fig 1 shows the displacement time graph of the motion of a particle
State the nature of the motion of the particle between:
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