K.C.S.E Physics Q & A - MODEL 2015PP2QN08
​Figure 3 shows straight waves incident on a diverging lens placed in a ripple tank to reduce its depth.
​Complete the diagram to show the waves in both the shallow region and beyond the lens.
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K.C.S.E Physics Q & A - MODEL 2015PP2QN07
State two differences between electromagnetic waves and mechanical waves.
answer
K.C.S.E Physics Q & A - MODEL 2015PP2QN06
State two ways in which the strength of an electromagnet can be increased.
answer
State the reason why a convex mirror is preferred over a plane mirror for use as a driving mirror.24/7/2020
K.C.S.E Physics Q & A - MODEL 2015PP2QN05
State the reason why a convex mirror is preferred over a plane mirror for use as a driving mirror.
answer
K.C.S.E Physics Q & A - MODEL 2015PP2QN04
​Figure 2 shows a soft iron bar AB placed in a coil near a freely suspended magnet.
​Explain the observation made when the switch is closed.
answer
K.C.S.E Physics Q & A - MODEL 2015PP2QN03
State the reason for topping up a lead - acid accumulator with distilled water.
answer
K.C.S.E Physics Q & A - MODEL 2015PP2QN02
​It is observed that when a charged body is brought near the cap of a positively charged electroscope, the divergence of the leaf increases. State the type of charge on the body.
answer
K.C.S.E Physics Q & A - MODEL 2015PP2QN01
​ Figure 1 shows three mirrors arranged at right angles to each other. A ray of light is incident on one of the mirrors.
​Complete the diagram to show the path of the ray after reflection on each of the mirrors.
K.C.S.E Physics Q & A - MODEL 2015PP1QN13
Mechanics is one of the branches of physics. State what it deals with.
ANSWER
K.C.S.E Physics Q & A - MODEL 2015PP1QN12
​Figure 6 shows a glass tube with water fitted with two identical thermometers A and B.
It is heated as shown
​State with a reason which one of the two thermometers shows a higher temperature.
ANSWER
K.C.S.E Physics Q & A - MODEL 2015PP1QN11
A person carrying a heavy luggage using one hand leans away from the luggage. State the reason for this.
ANSWER
K.C.S.E Physics Q & A - MODEL 2015PP1QN10
​A balloon is filled with hydrogen gas and then released into the air. It is observed that as it rises higher into the air it expands. Explain why it expands.
ANSWER
K.C.S.E Physics Q & A - MODEL 2015PP1QN09
​Figure 5 shows air flowing through a pipe of different cross-sectional areas. Two pipes A and B are dipped into water.
​Explain the cause of the difference in the levels of water in the pipes A and B.
ANSWER
K.C.S.E Physics Q & A - MODEL 2015PP1QN08
​Figure 4 shows a uniform metal rod balanced at it’s centre by different forces.
​Determine the value of T.
K.C.S.E Physics Q & A - MODEL 2015PP1QN07
​Two containers A and B of equal dimensions but different metals are fitted with identical glass casings. The two containers initially at the same temperature are simultaneously filled with boiling water. It is observed that the glass casing on A breaks earlier than the one on B.
​Explain this observation.
ANSWER
K.C.S.E Physics Q & A - MODEL 2015PP1QN06
​Figure 3 shows the arrangement of molecules in the three states of matter.
​(a) Name the process represented by the arrow.
(b) State the reason for the arrangement of molecules in state 3.
ANSWER
​(a) - freezing
(b) - The intermolecular forces are weaker A student wearing sharp pointed heeled shoes is likely to damage a soft wooden floor. Explain.24/7/2020
K.C.S.E Physics Q & A - MODEL 2015PP1QN05
A student wearing sharp pointed heeled shoes is likely to damage a soft wooden floor. Explain.
ANSWER
K.C.S.E Physics Q & A - MODEL 2015PP1QN04
State two factors that determine the pressure at a point in a liquid.
ANSWER
K.C.S.E Physics Q & A - MODEL 2015PP1QN03
​A spring extends by 6 cm when supporting a mass of 0.06 kg on earth. When the spring is used to support the same mass on the moon, it extends by 1 cm. Determine the moon’s gravitational strength. (Take gravitational field strength on earth as 10 Nk/g)
K.C.S.E Physics Q & A - MODEL 2015PP1QN02
​ Figure 2 (a) shows the initial reading of a burette used to measure the volume of oil. After 50 drops of the oil were run out, the final reading was as shown in . Figure 2 (b)
​Determine the volume of one drop of oil.
K.C.S.E Physics Q & A - MODEL 2015PP1QN01
Figure 1 shows part of the main scale of a vernier callipers.​
​Insert the vernier scale to the main scale, to show a reading of 3.14 cm.
K.C.S.E Physics Q & A - MODEL 2014PP2QN12
​Draw a ray diagram to show how a ray of light may be totally internally reflected two times in an isosceles right - angled glass prism. (Assume that the critical angle of glass is 42°)
The anode of an x-ray tube becomes hot when the tube is in use. State the reason for this.23/7/2020
K.C.S.E Physics Q & A - MODEL 2014PP2QN11
The anode of an x-ray tube becomes hot when the tube is in use. State the reason for this.
answer
K.C.S.E Physics Q & A - MODEL 2014PP2QN10
State two uses of a charged gold leaf electroscope.
answer
K.C.S.E Physics Q & A - MODEL 2014PP2QN09
​ Radium undergoes radioactive decay by emitting an alpha particle to form a daughter nuclide Q as in the reaction:
Determine the values of:
(a) x (b) y |
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