K.C.S.E Physics Q & A - MODEL 2002PP1QN13
Fig. 8 shows two parallel thick copper conductors connected to a D.C. power supply. A rider made from a thin copper wire is placed on the conductors.
State and explain what is observed on the rider when the switch is closed.
answer
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K.C.S.E Physics Q & A - MODEL 2002PP1QN12
​Fig. 7 shows a non – uniform log of mass 100kg balanced on the pivot by a 2kg mass placed as shown.
Determine the distance of the center of gravity of the log from the pivot.
answer
K.C.S.E Physics Q & A - MODEL 2002PP1QN11
​Fig. 6 shows a soft iron placed between poles of two magnets.
​Sketch the magnetic field pattern.
answer
K.C.S.E Physics Q & A - MODEL 2002PP1QN10
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.
On the same axes provided, sketch the graphs of extension against load for each. (hookers law is obeyed.)
answers
K.C.S.E Physics Q & A - MODEL 2002PP1QN09
​ Fig. 4 shows electrical circuit. When the switch is closed the ammeter reading is 0.3 A.
Determine the voltmeter reading.
ANSWER
K.C.S.E Physics Q & A - MODEL 2002PP1QN08Fig. 3 shows two rays of A and B entering a semi – circular glass block which has a critical angle of 42o. The rays are incident at an air – glass boundary at point O.
Complete the path of the two rays from point O. label A" and B" the corresponding rays.
K.C.S.E Physics Q & A - MODEL 2002PP1QN07
​An electric heater is placed at equal distances from two similar metal cans A and B filled with water at room temperature. The outer surface of can is shiny while that of can B is dull black. State with reasons which can will be at a higher temperature after the heater is switched on for some time.
ANSWER
K.C.S.E Physics Q & A - MODEL 2002PP1QN06
When an inflated balloon is placed at equal in a refrigerator it is noted that its volume reduces. Use the kinetic theory of gases to explain this observation.
answers
K.C.S.E Physics Q & A - MODEL 2002PP1QN05The total weight of a car with passengers is 25,000N. The area of contact of each of the four tyres with the ground is 0.025m2. Determine the minimum car tyre pressure.K.C.S.E Physics Q & A - MODEL 2002PP1QN04A current of 0.70 A flows through a wire when a p.d of 0.35 V id applied at the ends of the wire. If the wire is 0.5m long and has a cross section area of 8.0 x 10-3 m-2, determine its resistivity.
K.C.S.E Physics Q & A - MODEL 2002PP1QN03
If the portion of the rock represented by the shaded part is chopped off explain why the rock may topple to the right.
answer
K.C.S.E Physics Q & A - MODEL 2002PP1QN02
Fig. 2 represents a rock balanced at point O.G is the center of gravity of the rock. Use this information to answer questions 2 and 3.​
​Draw and label on the figure, the forces acting on the rock.
K.C.S.E Physics Q & A - MODEL 2002PP1QN01
​Fig one shows a micrometer crew gauge being used to measure the diameter of a metal rod.
The thimble scale has 50 divisions
What is the reading shown?
K.C.S.E Physics Q & A - MODEL 2001PP1QN34
​The following reaction is part of a radioactive series:
​Identify the radiation r and determine the values of b and c.
State the factor that determines the hardness of the X – rays produced in an X – ray tube.9/7/2020
K.C.S.E Physics Q & A - MODEL 2001PP1QN33
State the factor that determines the hardness of the X – rays produced in an X – ray tube.
answers
K.C.S.E Physics Q & A - MODEL 2001PP1QN32
A 60W bulb is used continuously for 36 hours. Determine the energy consumed. Give your answer in kilowatt hour (kWh).K.C.S.E Physics Q & A - MODEL 2001PP1QN31
Fig. 22 shows an electric generator. The points P and Q are connected to a cathode ray oscilloscope (CRO)
​Sketch on the axes provided the graph of the voltage output as seen on the CRO Given that when t = 0 the coil is at the position shown in the figure.
K.C.S.E Physics Q & A - MODEL 2001PP1QN30
​Fig 21 shows a converging lens whose local point F is marked.
​An object is placed in front of the lens such that the lens forms a real magnified image.
Sketch on the same diagram array diagram to represent this. K.C.S.E Physics Q & A - MODEL 2001PP1QN29
​Fig. 20 shows a ball being whirled in a vertical plane.
​Sketch on the same figure the path followed by the ball if the string cuts when the ball is at the position shown in the figure.
K.C.S.E Physics Q & A - MODEL 2001PP1QN28
​Fig. 19 shows two spheres made of wax each of mass 0.10kg held in a liquid by strings A and B.
If the upthrust on each sphere is 1.05N, determine the tension in each string.(acceleration due to gravity g = 10ms-2)
answer
K.C.S.E Physics Q & A - MODEL 2001PP1QN27
State the reason why radio waves signals are easier to receive than TV (television) signals in a place surrounded by hills.
answer
K.C.S.E Physics Q & A - MODEL 2001PP1QN26
​Fig. 18 shows the wave patterns produced in one second when two tuning forks were sounded together.
​Determine the beat frequency.
K.C.S.E Physics Q & A - MODEL 2001PP1QN25
​Fig. 17(i) shows a stretched string AB vibrating in its fundamental mode.
Sketch in fig 17. (ii) and (ii) the 2nd and 3rd harmonic of the string respectively.
K.C.S.E Physics Q & A - MODEL 2001PP1QN24
​Two identical containers A and B are placed on a bench. Container A is filled with oxygen gas and container B with hydrogen gas such that the two gases have equal masses. If the containers are maintained at the same temperature state with reason the container in which the pressure is higher.
answer
K.C.S.E Physics Q & A - MODEL 2001PP1QN23
Fig. 16 shows a non – viscous fluid flowing through a pipe a long which vertical tubes A, B and C have been fitted.
​Complete the diagram by indicating the possible levels of the fluid in tubes B and C.
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