K.C.S.E Physics Q & A - MODEL 1999PP1QN14
Determine the moment of the couple shown in figure 10.
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K.C.S.E Physics Q & A - MODEL 1999PP1QN13
Figure 9 shows a wire carrying a current whose direction is into the paper.
The wire is placed in a magnetic field.
Indicate on the figure the direction of the force acting on the wire.
K.C.S.E Physics Q & A - MODEL 1999PP1QN12
How can it be shown that the strength of a magnet is concentrated at the poles?
ANSWERS
K.C.S.E Physics Q & A - MODEL 1999PP1QN11
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)
K.C.S.E Physics Q & A - MODEL 1999PP1QN10
Determine the ammeter reading when a p.d of 3.0 volts is applied across Pq in figure 8.
K.C.S.E Physics Q & A - MODEL 1999PP1QN09
Figure 7 shows a sharp pin fixed on a cap of leaf electroscope. The electroscope is highly charged and then left for sometime.
Explain why the leaf collapses
ANSWER
K.C.S.E Physics Q & A - MODEL 1999PP1QN08
Figure 6 shows a ray of light incident on plane mirror at point O.
The mirror is rotated clockwise through an angle 300 about an axis perpendicular to the paper. Determine the angle through which the reflected ray rotated.
K.C.S.E Physics Q & A - MODEL 1999PP1QN07
In an experiment to study the atoms of gold, a beam of alpha- particles was directed onto a thin sheet of gold. The following observations were made:
(i) Majority of the particles went straight through undeflected (ii) A few particles deflected through varying angles up to 180. K.C.S.E Physics Q & A - MODEL 1999PP1QN06
Figure 5 shows a bimetallic strip at room temperature. Brass expands more than invar when heated equally.
Sketch the bimetallic strip after being cooled several degrees below room temperature.
K.C.S.E Physics Q & A - MODEL 1999PP1QN05
Fig. 4 shows a capillary tube placed in though of mercury.
Give a reason why the level of mercury in the capillary tube is lower than in the beaker.
ANSWERS
K.C.S.E Physics Q & A - MODEL 1999PP1QN04
A vacuum pump was used to pump out air from the glass tube immersed in liquids as shown in figure3.
After sometime the level of paranum rose to position A. Mark 1, the corresponding position for the water level. Give a reason for your answer.
K.C.S.E Physics Q & A - MODEL 1999PP1QN03
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.
ANSWERS
K.C.S.E Physics Q & A - MODEL 1999PP1QN02
Figure 2 shows forces f1 and F1 and F2 acting on a meter rule such that it is in equilibrium.
Mark on the figure a third force F3 acting on the rule such that it is in equilibrium maintained.
K.C.S.E Physics Q & A - MODEL 1999PP1QN01
What is the reading on the vernier calipers shown in figure 1?
K.C.S.E Physics Q & A - MODEL 1998PP1QN34
Fig 12 shows a body of weight 50N placed on a surface which is inclined at an angle of 30 to the horizontal . The body experiences a maximum frictional force of 29N with the surface.
Determine the force required to move the body, up the inclined with constant velocity.
K.C.S.E Physics Q & A - MODEL 1998PP1QN33
What is meant by virtual image?
ANSWER
K.C.S.E Physics Q & A - MODEL 1998PP1QN32
Fig 11 shows a double slit placed in front of a source, s of waves, a director D is placed beyond the slits, such that its position can be adjusted along the line XY
State with a reason, what the detector records along XY.
ANSWER
K.C.S.E Physics Q & A - MODEL 1998PP1QN31
Fig 10 shows a fire alarm circuit
Explain how the alarm functions
ANSWER
K.C.S.E Physics Q & A - MODEL 1998PP1QN30
Fig 9 shows a Bunsen burner.
Use Bernoulli's principle to explain how air is drawn into the burner, when, the gas tap is opened.
ANSWER
K.C.S.E Physics Q & A - MODEL 1998PP1QN29
Fig. 8 shows a car of mass M moving along a curved part of the road with a constant speed.
Explain the fact that the car is more likely to slide at B than at A if the speed is not changed.
ANSWER
K.C.S.E Physics Q & A - MODEL 1998PP1QN28
What determines the quality of a musical note?
ANSWER
K.C.S.E Physics Q & A - MODEL 1998PP1QN27
During total eclipse of the sun, both light and heat are observed to disappear simultaneously. Explain the observation.
ANSWER
K.C.S.E Physics Q & A - MODEL 1998PP1QN26
State two factors that would raise the boiling point of water to above 100C
ANSWER
K.C.S.E Physics Q & A - MODEL 1998PP1QN25
Fig 7 shows a graph of pressure P, against volume, V, for a fixed mass of gas at constant temperature.
Sketch on the same axes a graph for the same mass of gas with a temperature T2 lower than T1
K.C.S.E Physics Q & A - MODEL 1998PP1QN24
John carried a uniform post of mass 20kg horizontally on his shoulder as shown in fig 6. He placed the post on his shoulder such that the centre of gravity of the pole is 1.0m behind him. He balanced the post by applying a downward force F at a point 0.5m on the part of the post in front of him.
Determine the value of the force F.
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M.A NyamotiMy passion is to see students pass using right methods and locally available resources. My emphasis is STEM courses
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