K.C.S.E Physics Q & A - MODEL 2019PP2QN11
​Figure 5 shows part of the lighting circuit in a house.
​State two errors in the wiring circuit.
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K.C.S.E Physics Q & A - MODEL 2019PP2QN10
State how the intensity of X-rays in an X-ray tube can be increased.
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K.C.S.E Physics Q & A - MODEL 2019PP2QN09
​Figure 4 shows the input and output signals on a CRO screen when two diodes are used during a full wave rectification.
​Explain how the two diodes rectify the input signal.
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K.C.S.E Physics Q & A - MODEL 2019PP2QN08
State two uses of gamma rays in medicine.
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K.C.S.E Physics Q & A - MODEL 2019PP2QN07
​Figure 3 shows a cell connected in series with an ammeter, a 2 ohms resistor and a switch.A voltmeter is connected across the cell.
​With the switch open, the voltmeter reads 1.5 V. Given that the internal resistance of the cell is 0.5 ohms , determine the ammeter reading when the switch is closed.
K.C.S.E Physics Q & A - MODEL 2019PP2QN06
State the reason why the current produced by a simple cell falls rapidly when the cell is being used,
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K.C.S.E Physics Q & A - MODEL 2019PP2QN05
​In a siren, sound is produced when a jet of air is directed perpendicular to a ring of holes on a rotating wheel. Explain the effect on the pitch of sound produced when the speed of rotation of the wheel is increased.
answer
K.C.S.E Physics Q & A - MODEL 2019PP2QN04
​Figure 2 shows an incomplete circuit for an electromagnet.
​(a) Complete the diagram to show how a battery should be connected at A so that the polarities at P and Q are South and North respectively.
(b) State two ways in which the strength of the electromagnet in (a) can be increased.
K.C.S.E Physics Q & A - MODEL 2019PP2QN03
State two properties of magnetic field lines around a bar magnet.
answers
K.C.S.E Physics Q & A - MODEL 2019PP2QN02
State the reason why an increase in leaf divergence is the only sure way of determining whether an object is negatively charged using a negatively charged electroscope.
answer
K.C.S.E Physics Q & A - MODEL 2019PP2QN01
Figure 1 shows two plane mirrors inclined at an angle of 120 to each other. A ray of light makes an angle of 40° with the first mirror.​
​By completing the ray diagram determine the angle of reflection on the second mirror.
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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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