K.C.S.E Physics Q & A - MODEL 2001PP2QN07
ai) State the pressure law of an ideal gas.
ii) The pressure p, of a fixed mass of a gas at constant temperature T= 300K is varied continuously. The corresponding values of P and the volume V of the gas are shown in table 2.
Given that PV = 2RT where R is a constant, plot an appropriate graph and use it to determine r.
b) A tin closed with an airtight lid contains air at a pressure of 1.0 x 105+ Pa and temperature of 12 C. The tin is heated in a water bath until the lid opens. If the temperature at which the lid opens is 88C, determine the pressure attained by the gas. (Ignore expansion of the tin).
K.C.S.E Physics Q & A - MODEL 2001PP2QN06
a i) State one of the Newton's law of motion
ii) A body resting on a horizontal surface is given an initial velocity V so that it slides on the surface for some distance before coming to a stop. Table I shows the distances d moved by the body of various values of u
Given that v2 is 20 (miu)d where u is a constant for the surface, plot a appropriate graph and use it to determine u.
Determine values of u on table.
b) A train of mass 200 tonnes starts from rest and accelerates uniformly at 0.5ms-2 determine its momentum after moving 100m.
K.C.S.E Physics Q & A - MODEL 2001PP2QN05
a) You are provided with 12V a.c source, four diodes and resistor.
i) Draw a circuit diagram for a full wave rectifier and show the points at which the output is taken.
AC source shown-symbols; arrangement of diode (one for each pair); correct position of R; correct position of output.
ii) Sketch the graph of the output when a capacitor is put in parallel with the resistor in the circuit in (i) above.
b) A certain transistor is connected in common-emitter-mode. The base current IB is 0.50 ma. Determine the values of the:
(i) Emitter current IE.
(ii) Base-collector current gain beta
(iii) Current gain alpha
K.C.S.E Physics Q & A - MODEL 2001PP2QN04
Fig 3 shows the main features of a cathode ray tube (CRT) of a cathode ray oscilloscope (CRO)
i) Describe how the electrons are produced in the tube.
FORM I - PHYSICS SYLLABUS
FORM II - PHYSICS SYLLABUS
FORM III - PHYSICS SYLLABUS
FORM IV - PHYSICS SYLLABUS
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