K.C.S.E Physics Q & A - MODEL 2013PP1QN05
State two measurements you would take in an experiment to determine the upthrust of an object which is immersed in a fluid.
State how the measurements in question (5) are used to determine the upthrust of the object.
answer
5. Weight of object in air
Weight of object when fully immersed in fluids 6. Upthrust = weight in air - weight of object in fluid.
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K.C.S.E Physics Q & A - MODEL 2013PP1QN04
​An object of weight 20 N attached at the end of a spring causes an extension of 0.5 cm on the spring.
(a) Determine the spring constant of the spring. (b) Determine the weight of an object that would cause an extension of 0.86 cm when attached at the end of the same spring. K.C.S.E Physics Q & A - MODEL 2013PP1QN03
​Figure 2 shows some air trapped by mercury in a glass tube. The tube is inverted in a dish containing mercury.
​Given that the atmospheric pressure is 760 mmHg and the height of mercury column in the tube is 600 mm, determine the pressure of the air trapped in the tube in mmHg.
K.C.S.E Physics Q & A - MODEL 2013PP1QN02
State one factor that affects the turning effect of a force on a body.
answers
K.C.S.E Physics Q & A - MODEL 2013PP1QN01
Figure 1 shows part of the main scale and vernier scale of a vernier callipers.
​Record the reading indicated.
answer
K.C.S.E Physics Q & A - MODEL 2012PP2QN018
​ Figure 18 shows parts of an x-ray tube.
(a) Explain why:
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