K.C.S.E Physics Q & A - MODEL 1998PP1QN31
Fig 10 shows a fire alarm circuit
Explain how the alarm functions
ANSWER
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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 1998PP1QN23
Cleavage in crystals is possible in certain directions only. Explain this observation.
answer
K.C.S.E Physics Q & A - MODEL 1998PP1QN16
In figure 4 one end of a metal rod is placed in steam and the other end in melting ice. The length of the rod in between in lagged.
State two factors that determine the rate at which ice melts.
ANSWER
K.C.S.E Physics Q & A - MODEL 1998PP1QN15
A highly negatively charged rod is gradually brought close to the cap of a positively charged electroscope. It is observed that the leaf collapses initially and then diverges. Explain the observation.
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K.C.S.E Physics Q & A - MODEL 1998PP1QN10
A car battery requires topping lip with distilled water occasionally. Explain why this is necessary and why distilled water is used.
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K.C.S.E Physics Q & A - MODEL 1998PP1QN07
State one advantage of fitting wide tyres on a vehicle that moves on earth roads.
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K.C.S.E Physics Q & A - MODEL 1998PP1QN05
A metal pin was observed to float on the surface of pure water. However the pin sank when a few drops of soap solution were carefully added to the water. Explain his observation.
ANSWER
K.C.S.E Physics Q & A - MODEL 1998PP1QN01
Figure 1 shows a fencing post whose length is being measured using a strip of a measuring tape.
Use this information to answer questions 1 and 2.
State the accuracy of the tape: What is the length of the post Calculate the wavelength of the KBC FM radio wave transmitted at a frequency of 95.6 Mega Hertz.6/7/2020
K.C.S.E Physics Q & A - MODEL 1997PP1QN20
Calculate the wavelength of the KBC FM radio wave transmitted at a frequency of 95.6 Mega Hertz.K.C.S.E Physics Q & A - MODEL 1997PP1QN19
An object dropped from a height h attains a velocity of 6 ms-1 just before hitting the ground. Find the value of h.
K.C.S.E Physics Q & A - MODEL 1997PP1QN11
Figure 5 shows two charged identical conduction spheres on insulting stands. Each cross represents a charge. The spheres are briefly brought into contact and then separated.
Sketch in the space provided the diagrams of the spheres showing charge distribution after separation
answers
K.C.S.E Physics Q & A - MODEL 1997PP1QN09
Figure 3 shows two aluminium containers, A and B placed on a wooded table. A and B have equal volumes of hot water initially at the same temperature.
answers
The height of the mercury column in a barometer at a place is 64cm. What would be the height of a column of paraffin in barometer at the same place? (Density of paraffin = 8.0 x 102 kgm-3)
K.C.S.E Physics Q & A - MODEL 1997PP1QN04
A butcher has a beam balance and masses 0.5 kg and 2kg. How would he measure 1.5 kg of meat on the balance at once?
answers
K.C.S.E Physics Q & A - MODEL 1997PP1QN03
Give a reason why the weight of the body varies from place to place
answer
K.C.S.E Physics Q & A - MODEL 1997PP1QN02
Figure 2 shows a rigid body acted upon by a set of forces. The magnitudes of the forces are as follow
F1 = 3N1, F2 = 6N, F3 = 3N, F4 = 4 N1, F5 = 3N and F6 = 3 N
​Identify the couple among these forces
answers
K.C.S.E Physics Q & A - MODEL 1997PP1QN01
Figure 1 shows a measuring cylinder, which contains water initially at level A. A solid of mass 11 g is immersed in the water, the level rises to
Determine the density of the solid. (Give your answer to 1 decimal place)
K.C.S.E Physics Q & A - MODEL 1996PP1QN29
A solid copper sphere will sink in water while a hollow copper sphere of the same mass many float. Explain this observation
ANSWERS
K.C.S.E Physics Q & A - MODEL 1996PP1QN27
Explain how a piece of a Polaroid reduces the sun's glare
ANSWERS
K.C.S.E Physics Q & A - MODEL 1996PP1QN26
A house in which as cylinder containing cooking gas is kept unfortunately catches fire. The cylinder explodes. Give an explanation for the exposition
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K.C.S.E Physics Q & A - MODEL 1996PP1QN24
State how the pressure in a moving fluid varies with the speed of the fluid
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K.C.S.E Physics Q & A - MODEL 1996PP1QN11
Name two forces that determine the shape of liquid drop on the solid surface.
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K.C.S.E Physics Q & A - MODEL 1996PP1QN09
State the law of electrostatic charges
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K.C.S.E Physics Q & A - MODEL 1996PP1QN05
A small nail may pierce an inflated car tyre and remain there without pressure reduction in the tyre. Explain this observation
answers
(i) Rubber is elastic and when a nail pushed through it stretches and grips the nail firmly without allowing air leakage
(ii) Valve effect pressure from inside causes tyre rubber to press firmly on the nail |
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