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You are provided with a test – tube, thread and a meter ruler. Outline the steps you would use to measure the circumference and hence the diameter of the test – tube.
Date posted:
May 20, 2019
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The figure below shows a rubber sucker, explain why the sucker sticks on a clean flat
Surface.
Date posted:
May 20, 2019
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A micrometer screw gauge has a zero error of -0.03mm. It is used to measure the diameter of a wire. If the actual diameter of the wire is 0.30mm, draw the micrometer screw gauge showing the measured diameter of the wire.
Date posted:
May 20, 2019
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Water falls through a height of 60 m at a rate of flow of 1.0x10^5 per minute. Calculate the amount of power generated at the base of the water fall (the mass of 1 litre of water is 1 kg)
Date posted:
May 19, 2019
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An aeroplane is moving horizontally through still air at a uniform
speed. It is observed that when the speed of the plane is increased, its
height above the ground increases. State the reason for this observation.
Date posted:
May 7, 2019
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Describe an experiment that can be used to verify the Boyle’s law
Date posted:
April 24, 2019
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Describe an experiment that can be used to demonstrate Effects of reduced pressure on boiling point.
Date posted:
April 24, 2019
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Describe an experiment that can be used to demonstrate Effects of increased pressure on boiling point.
Date posted:
April 24, 2019
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Describe an experiment that can be used to determine the specific latent heat of vaporization of water using mixture method.
Date posted:
April 24, 2019
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Explain how specific latent heat of fusion can be determined using mixture method.
Date posted:
April 24, 2019
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Using a graph discuss the change of state when ice is heated from -20C until it boils.
Date posted:
April 24, 2019
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Describe an experiment to show how electrical method can be used to determine specific heat capacity.
Date posted:
April 24, 2019
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Describe an experiment to determine the specific heat capacity by the method of mixtures.
Date posted:
April 24, 2019
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Describe an experiment that can be used to investigate Ohm’s law:
Date posted:
April 24, 2019
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Explain how you can determine the velocity ratio of a Pulley belt.
Date posted:
April 24, 2019
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Derive the formula for the velocity ratio of a wheel and axle.
Date posted:
April 24, 2019
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Describe how you can determine the velocity ratio of an Hydraulic machine.
Date posted:
April 24, 2019
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Derive a formula to calculate the velocity ratio of gears.
Date posted:
April 24, 2019
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Derive the formula of calculating the velocity ratio using inclined planes.
Date posted:
April 24, 2019
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Describe an experiment to show viscosity in fluids.
Date posted:
April 24, 2019
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Describe an experiment to determine acceleration due to gravity.
Date posted:
April 24, 2019
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A box of mass 30kg is pushed up an inclined plane of length 14m using a force of 130N as shown below:
If the track is inclined at an angle of 200, calculate:
a) The height of the platform.
b) Workdone by the force of 130N.
Date posted:
April 23, 2019
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Draw a flow chart to show the energy transformation in a hydroelectric power station:
Date posted:
April 23, 2019
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The mass of a density bottle is 20g when empty and 45g when full of water. When full of mercury, its mass is 360g. Calculate the density of mercury.
Date posted:
April 23, 2019
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Derive the three equations of linear motion.
Date posted:
April 23, 2019
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The figure below represents part of a tape pulled through a ticker-timer by a trolley moving down an inclined plane. If the frequency of the ticker-timer is 50Hz, calculate the acceleration of the trolley.
Date posted:
April 23, 2019
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A paper tape was attached to a moving trolley and allowed to run through a ticker-timer. The figure below shows a section of the tape.
If the frequency of the ticker-timer is 20Hz, determine:
a) The velocity between AB and CD.
b) The acceleration of the trolley.
Date posted:
April 23, 2019
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A machine with a velocity ratio of 30 moves a load of 300N when an effort of 200N is applied. Calculate the efficiency of the machine.
Date posted:
April 22, 2019
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Explain why a man using a parachute falls through air slowly while a stone falls through air very fast.
Date posted:
April 22, 2019
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A man makes a deeper marks while walking on a soft ground in a high heeled shoes than in a flat shoes. Explain
Date posted:
April 22, 2019