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A accelerates uniformly from it initial velocity, u, the final velocity, v in time t. The distance
traveled during this time is S. If the acceleration is denoted by the letter, a show that;
(i) V = u + at
(ii) S = ut + at2
(iii) V2 = u2 + as
Date posted:
September 19, 2017
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Equal masses of water and paraffin with specific heat capacities CW and CP respectively are heated
using identical sources of heat, for the same length of time. The final temperature θP of paraffin
was found to be greater than final temperature than of water, Show that CW is greater than CP.
Date posted:
September 18, 2017
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A girl heats 5 kg of water to temperature of 80oooC. Determine the value of m. (ignore heat changes due to the container)
Date posted:
September 18, 2017
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What characteristics of sound is applied in turning pianos
Date posted:
September 18, 2017
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What measurable quality is associated with colors of light?
Date posted:
September 18, 2017
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Distinguish between PNP and NPN transistors
Date posted:
September 18, 2017
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State the condition for a minim to occur in an interference pattern
Date posted:
September 18, 2017
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Describe how a young’s double slit may be made in a laboratory
Date posted:
September 18, 2017
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Define amplitude.
Date posted:
September 18, 2017
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State why optical fibres are preferred in communication to ordinary cables.
Date posted:
September 18, 2017
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State two defects of a simple cell and how each can be minimized.
Date posted:
September 18, 2017
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Give a reason why repulsion in magnetism is the surest way of testing polarity
Date posted:
September 18, 2017
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Define the term acceleration.
Date posted:
September 18, 2017
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State two factors that would raise the boiling point of water to above 100oC.
Date posted:
September 18, 2017
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Give a reason why weight of a body varies from one planet to another
Date posted:
September 18, 2017
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State two factors affecting conductivity of solids.
Date posted:
September 18, 2017
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Distinguish between a basic physical quantity and a derived physical quantity giving an example of each.
Date posted:
September 18, 2017
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What is the name given to the method of charging an electroscope where it requires an opposite charge to the one of the charging materials?
Date posted:
September 18, 2017
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A negatively, charged rod is brought close to (but not touching ) an uncharged sphere. If the sphere is momentarily earthed and then the rod is removed, briefly explain what happens.
Date posted:
September 18, 2017
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Distinguish between mass and weight of a body stating the S.I units for each.
Date posted:
September 18, 2017
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Define electric current and state its SI unit
Date posted:
September 18, 2017
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State two factors which affect pressure in liquids
Date posted:
September 18, 2017
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Name 3 types of forces that act without contact
Date posted:
September 18, 2017
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State three precautions that must be taken when using the density bottle
Date posted:
September 18, 2017
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State why most braking systems use liquids and not gases.
Date posted:
September 18, 2017
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One property of a liquid that is considered while constructing a liquid – in – glass thermometer is
that the liquid expands more than the glass for the same temperature change. State any other two
properties of the liquids that are considered
Date posted:
September 18, 2017
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State the assumption made when calculating the size of a molecule in the thin oil film experiment
Date posted:
September 18, 2017
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Show that the force driving the liquid through the U – tube is proportional to the height, h
Date posted:
September 18, 2017
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Suppose the handle bars of a wheelbarrow are extended, which force(s) would change and how
Date posted:
September 18, 2017
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Define centripetal acceleration
Date posted:
September 18, 2017