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Describe an experiment on how to measure the thickness of a razor Blade
Date posted:
March 6, 2018
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A butcher has a beam balance and masses 0.5kg and 2kg. How would he measure 1.5kg of meat on the balance at once.
Date posted:
March 5, 2018
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Explain the reason somebody in the highland is likely to suffer from a nosebleed
Date posted:
March 5, 2018
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Define the term specific density.
Date posted:
March 4, 2018
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State two measurements you would take in an experiment to determine the upthrust of the object.
Date posted:
March 3, 2018
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State two conditions necessary for formation of annular eclipse.
Date posted:
March 2, 2018
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When a charged leaf electroscope is placed close to an uncharged leaf electroscope, state and explain the results.
Date posted:
March 1, 2018
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The density of granite is 2800kg/m3.What is the specific gravity of granite?.
Date posted:
February 26, 2018
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A block of wood has a volume of 45cm3 and a mass of 450g. What is its density?
Date posted:
February 26, 2018
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What is power and what is its SI units?
Date posted:
February 26, 2018
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What is displacement?
Date posted:
February 26, 2018
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A butcher has a beam balance and masses 0.5kg and 2.0kg. How would he measure 1.5kg of meat on the balance at once?
Date posted:
February 26, 2018
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A bottle weighs 16 g when empty 36 g when full of mercury. What is density of mercury?
Date posted:
February 25, 2018
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Briefly describe the effect of the following on the size and nature of image formed by a pinhole camera.
(a)increasing the distance of object from the pinhole.
Date posted:
February 21, 2018
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Explain how an electric bell works.
Date posted:
February 20, 2018
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Explaining the different extrinsic semiconductor.
Date posted:
February 14, 2018
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Classify materials on their conductivity and basing your argument on depletion gap, explain their difference in conductivity.
Date posted:
February 14, 2018
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Stating characteristics of real amplifier
Date posted:
February 14, 2018
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State the characteristics of an ideal operation amplifier.
Date posted:
February 14, 2018
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What is meant by doping and what's the purpose of the process of doping?
Date posted:
February 14, 2018
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A screw jack 25% efficient and having a screw pitch of 0.4cm is used to raise a load through a certain height. If the process the handle turns through a circle of radius 40cm. Calculate the
1. Velocity ratio of the machine
2. Mechanical advantage of the machine
3. Effort required to raise a load of 1000N with the machine ( take pi =3 1/4)
Date posted:
February 12, 2018
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A boy keeps a balloon inflated with air is refrigerator. State and explain the observations made.
Date posted:
February 9, 2018
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An engineer is contracted to construct a permanent house on a sandy soil. What measure would he take to make sure the house does not sink?
Date posted:
February 9, 2018
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State one reason why racing cars are stable.
Date posted:
February 9, 2018
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State two factors that determines the efficiency of an inclined plane as a machine
Explain how these factors affect efficiency
Date posted:
February 9, 2018
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Two objects made of the same material and having the same mass are heated to a temperature of 35oC above that of the atmosphere and then allowed to cool in still air for 30 minutes. State one factor that will determine their final temperature
Date posted:
February 9, 2018
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A crystal of potassium permanganate was carefully introduced at the bottom of water column held in a gas jar. After sometime, the whole volume of water was coloured. Explain this observation
Date posted:
February 9, 2018
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Define crystal cleavage
Date posted:
February 9, 2018
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State one factor that a bimetallic strip relies on for its working
Date posted:
February 9, 2018
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State one way a camera differs from the human eye.
Date posted:
February 9, 2018