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An acoustic guitar has a hollow sound box. State and explain the main role of this sound box.
Date posted:
October 4, 2017
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When pumping up a tyre, the more you pump the harder it becomes to pump. Explain.
Date posted:
October 4, 2017
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How is the human eye able to form a focused image.
Date posted:
October 4, 2017
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State three factors that affect the capacitance of a capacitor.
Date posted:
October 4, 2017
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State two changes you would make in a mercury thermometer so that it can measure temperature accurately.
Date posted:
October 4, 2017
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A person alighting from a moving matatu tends to spread his legs. Explain why.
Date posted:
October 4, 2017
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State the law that relates to the elasticity of an elastic spring when acted on by force.
Date posted:
October 4, 2017
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State two applications of surface tension.
Date posted:
October 4, 2017
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State one factor that affects the electrostatic force.
Date posted:
October 4, 2017
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What is meant by the change of state?
Date posted:
October 4, 2017
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Explain the usefulness of a vernier scale in the vernier callipers.
Date posted:
October 4, 2017
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Give an example where a liquid still sinks yet it is being heated.
Date posted:
October 4, 2017
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Explain heat transfer by conduction in solids.
Date posted:
October 4, 2017
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State two factors which affect the centripetal force of a body moving in a circle.
Date posted:
October 4, 2017
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State the function of the following features in a liquid in glass thermometer.
1. Thin walled bulb
2. Thick walled stem.
Date posted:
October 4, 2017
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State two effects of anomalous expansion of water.
Date posted:
October 4, 2017
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Give three ways in which the power of an electric motor can be increased.
Date posted:
October 4, 2017
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State the effect of adding sodium chloride to ice at 0 degrees.
Date posted:
October 4, 2017
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Explain the function of the small hole at the side of the cover of a ball point pen.
Date posted:
October 4, 2017
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Why is the inner part of a pinhole camera painted black?
Date posted:
October 4, 2017
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How does a syringe draw water from a beaker.
Date posted:
October 4, 2017
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Explain why a concave meniscus is formed on the surface of water while convex meniscus on mercury liquid.
Date posted:
October 4, 2017
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State the purpose of carbon powder in a dry cell.
Date posted:
October 4, 2017
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State two ways of increasing the mechanical advantage of a hydraulic machine.
Date posted:
October 4, 2017
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State and explain how stability of the candle changes as it continues to burn.
Date posted:
October 4, 2017
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An FM radio station aired its transmission at the frequency of 100 Mega Hertz. Calculate its wavelength given that the velocity of the wave is 3.0 x 10^8 m/s
Date posted:
October 2, 2017
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From the expression P = pgh. State the factors that affect pressure of a fluid.
Date posted:
October 2, 2017
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Give one function of the cylindrical anodes in the CRO. tube.
Date posted:
October 2, 2017
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Atmospheric pressure decreases with increase in height. Explain
Date posted:
October 2, 2017
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What is a bimetallic strip.
Date posted:
October 2, 2017