K.C.S.E Physics Q & A - MODEL 2014PP1QN12
​On the axis provided, sketch the graph which shows the relationship between volume and temperature of a fixed mass of water in the temperature range 0°C to 10°C
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K.C.S.E Physics Q & A - MODEL 2014PP1QN11
​Figure 7 shows an incompressible fluid flowing through a pipe, A1 and A2 are the cross-sectional areas of the pipes in the larger section and smaller section of the pipe respectively, while V1 and V2 are speeds of the fluid at the two sections of the pipe.
​Derive an expression for the ratio of the speeds V2/V1 in terms of A1 and A2.
K.C.S.E Physics Q & A - MODEL 2014PP1QN10
​A light spiral spring extends by 4 mm when loaded with a weight W. The spring is connected in series with an identical spring. The combination is loaded with the weight W. Determine the extension of the combination.
K.C.S.E Physics Q & A - MODEL 2014PP1QN09
​Figure 6 shows two identical rods JK and LK connected with a hinge at K.
​The position of the centre of gravity for the system is at P. The arrangement is now adjusted so that J and L move equal distances towards O. Sketch the new arrangement on the same diagram and mark the new position of the centre of gravity.
K.C.S.E Physics Q & A - MODEL 2014PP1QN08
​Figure 5 shows a tin uniform rod 4 m long and of mass 2 kg. h is pivoted 1 m from one end and balanced horizontally by a string attached near the other end
​Determine the position where a mass of 5 kg should be placed on the rod so that the rod remains horizontal and the tension in the string is zero.
K.C.S.E Physics Q & A - MODEL 2014PP1QN07
​Figure 4 shows a source of heat placed at equal distances from two identical flasks X and Y containing air. The surface of X is painted black while Y is clear
​X and Y are linked by a U-tube filled with water whose levels S and T are initially the same.
It is later observed that S falls while T rises. Explain this observation.
answer
K.C.S.E Physics Q & A - MODEL 2014PP1QN06An oil drop of volume V m3 introduced on the surface of water spreads to form a patch whose area is A m2. Derive an expression for obtaining the diameter, d of a molecule of oil.K.C.S.E Physics Q & A - MODEL 2014PP1QN05Figure 3 shows two cylinders of different cross-sectional areas connected with a tube. The cylinders contain an incompressible fluid and are fitted with pistons of cross-sectional areas 4 cm2 and 24 cm2.Opposing forces P and Q are applied to the pistons such that the pistons do not move. If the pressure on the smaller piston is 5 N cm-2. Determine force Q.K.C.S.E Physics Q & A - MODEL 2014PP1QN04
​Figure 2 shows a section of a curved surface ABCD. Point A is higher than point B while BCD is horizontal. Part ABC is smooth while CD is rough. A mass m is released from rest at A and moves towards D.
​State the changes ¡n the velocity of m between:
(a)B and C; (b) C and D.
answer
​(a) BC = Constant
(b) CD - decreasing
K.C.S.E Physics Q & A - MODEL 2014PP1QN03
State the reason why it is not correct to quote the weight of solid objects in kilograms.
answer
K.C.S.E Physics Q & A - MODEL 2014PP1QN02
​ Figure 1 shows a magnified scale of a micrometer screw gauge.
​Record the reading indicated.
answer
K.C.S.E Physics Q & A - MODEL 2014PP1QN01
​A student measured the length of a wire four times using a metre rule and obtained the following readings: 18.6 cm; 18.5 cm; 18.6 cm and 18.5 cm. Determine the length the student should record.
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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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