K.C.S.E Physics Q & A - MODEL 2001PP1QN22
Fig. 15 shows a tall jar containing two fluids A and B. The viscosity of A is higher than that of B. A solid sphere is released at the top of the jar and falls through the fluids.
On the axes provided, sketch the velocity – time graph for the motion of the spheres through the fluids.
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K.C.S.E Physics Q & A - MODEL 2001PP1QN21
Fig. 15 14 shows a ray of light incident on a glass prism.
If the critical angle of the glass is 39 sketch on the same diagram the path of the ray until it emerges from the prism.
K.C.S.E Physics Q & A - MODEL 2001PP1QN20
Fig. 13 shows a point object O placed in front of a concave mirror.
Draw appropriate rays to locate the image of the object. K.C.S.E Physics Q & A - MODEL 2001PP1QN19
Fig 12 shows tow identical containers A and B into which a copper rod is fitted. The containers are well lagged.
The liquids in the containers were initially at the same temperature if the heat is a applied continuously at the position shown, state with reason for the container through which the loss of heat is likely to be higher.
answer
K.C.S.E Physics Q & A - MODEL 2001PP1QN18
An electric heater rated 240V ; 300w is to be connected to a 240V mains supply, through a 10A fuse. Determine whether the fuse is suitable or not.K.C.S.E Physics Q & A - MODEL 2001PP1QN17
The ammeter in the circuit in Fig. 11 has negligible resistance.
When the switch S is closed, the ammeter reads 0.01A. Determine the internal resistance of the battery. K.C.S.E Physics Q & A - MODEL 2001PP1QN16
Fig 10. Shows water waves incident on a shallow region of the shape shown with dotted line.
On the same diagram, sketch the wave pattern in and beyond the shallow region.
K.C.S.E Physics Q & A - MODEL 2001PP1QN15A certain machine raises 2.0 tonnes of water through 22 metres.It the efficiency of the machine is 80%, how much work is done on the machine.(Acceleration due to gravity g = 10ms-2)K.C.S.E Physics Q & A - MODEL 2001PP1QN14A bullet moving at a velocity of 300ms-1 hits a tree trunk of diameter 50cm. It emerges from the opposite side with a velocity of 150ms-1. Determine the average deceleration of the bullet in the trunk.K.C.S.E Physics Q & A - MODEL 2001PP1QN12
Fig. 9 shows a uniform light bar one meter in length in equilibrium under the action of forces F1 F2 F3 and F4. All the forces are in the same plane. Use the information on the figure to answer questions 12 and 13.
Name one set of forces on the figure that constitutes a couple.
Determine the moment of the couple named in question 12. K.C.S.E Physics Q & A - MODEL 2001PP1QN11
Fig 8 shows a soft-iron ring placed between the poles of a magnet. On the same diagram sketch the magnetic field pattern.
K.C.S.E Physics Q & A - MODEL 2001PP1QN10
Explain how polarization reduces current in simple cell.
ANSWER
K.C.S.E Physics Q & A - MODEL 2001PP1QN09
Fig. 7 shows “windmill” which when connected to the dome of a positively charged Van de Graff generator is observed to rotate as indicated. A, B, C and D are sharp points
Explain how this rotation is caused.
ANSWER
K.C.S.E Physics Q & A - MODEL 2001PP1QN08
Fig. 6 shows an object O being viewed using tow inclined mirrors M1 and M2.
Complete the diagram by sketching rays to show the position of the image as seen by the eye E. K.C.S.E Physics Q & A - MODEL 2001PP1QN06&7
Fig. 5 shows a flask fitted with a glass tube dipped into a beaker containing water at room temperature. The cork fixing the glass tube to the flask is airtight.
Use the information and the figure to answer questions 6 and 7.
State what is observed when ice- cold water is poured on the flask. Give a reason for the observation in question 6.
answers
K.C.S.E Physics Q & A - MODEL 2001PP1QN05
Fig. 4 (i) shows a beaker filled with water. Some potassium permanganate was gently introduced at the bottom of the beaker at the position shown.
Fig. 4(ii) shows the appearance of the liquid after about 30 minutes. Explain how this appearance was caused.
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K.C.S.E Physics Q & A - MODEL 2001PP1QN04
State the reason why it may not be possible to suck liquid into your mouth using drinking straw on the surface of the moon.
answer
K.C.S.E Physics Q & A - MODEL 2001PP1QN03
Fig 3 shows two identical hollow spheres. Spheres A is completely filled with the liquid while B is partly filled with identical liquid.
When the two spheres are rolled gently on a horizontal surface. It is observed that the sphere B stops earlier that the sphere A. Explain this observation.
answer
K.C.S.E Physics Q & A - MODEL 2001PP1QN02
Fig 2 shows a uniform bar in equilibrium.
When water is added into the beakers A and B until the weights are submerged, it is observed that the bar tips towards B. Explain this observation.
answer
K.C.S.E Physics Q & A - MODEL 2001PP1QN01
Fig. 1 shows a burette partly filed with a liquid. The burette was initially full to the mark O. If the quantity of the liquid removed has a mass of 22g, determine the density of the liquid.
K.C.S.E Physics Q & A - MODEL 2000PP1QN36
The graph in Fig 20 shows the disintegration per second versus time in seconds, s for a sample of radioactive material; determine the half – life of the sample.
State and explain the effect of increasing the E.H.T in an x-ray tube on the X-rays produced.8/7/2020
K.C.S.E Physics Q & A - MODEL 2000PP1QN35
State and explain the effect of increasing the E.H.T in an x-ray tube on the X-rays produced.
answers
K.C.S.E Physics Q & A - MODEL 2000PP1QN34
An atom changes from an excited state to an unexcited state releasing energy. State one factor that affects the frequency of the radiation released.
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K.C.S.E Physics Q & A - MODEL 2000PP1QN33
State the reason why soft iron is laminated.
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K.C.S.E Physics Q & A - MODEL 2000PP1QN32
An armature composed of turns of insulated copper wire would on laminated soft –iron core is rotated in a magnetic field to generate an e.m.f. Use this information to answer questions 32.
State two factors other than the speed of rotation that affect the molecule of the e.m.f generated.
ANSWER
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