Questions by anonymous

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1 answer

Polarization and local action are the common defects in a simple cell. How are these defects minimized in the cell?

asked Aug 18, 2021 in Physics Form 1

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State with a reason which type of reflector would be preferred for:

asked Aug 18, 2021 in Physics Form 2

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1 answer

What is the ‘direction of the magnetic field’ at a point in the field?

asked Aug 18, 2021 in Physics Form 2

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1 answer

A girl stands 2m in front of a plane mirror, the mirror is then moved 0.6m away from the girl. Determine the distance from the first position of the image to the second position of the image.

asked Aug 18, 2021 in Physics Form 1

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1 answer

The following is a decay series of Uranium 238.

asked Aug 18, 2021 in Physics Form 4

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Using the band theory, differentiate between conductor and a semi-conductor .

asked Aug 18, 2021 in Physics Form 4

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1 answer

Diagram (a) below shows the position of the bright spot on the screen of a C.R.O when there is no signal on both Y and X- plate. Indicate on the diagram(b) when the Y-plate is connected to a.c signal and for (c) the X- plate is connected to a d.c signal i.e. the display on the screen.

asked Aug 18, 2021 in Physics Form 2

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1 answer

The figure below shows a circuit diagram for a photocell.

asked Aug 18, 2021 in Physics Form 4

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1 answer

The diagram below shows an electrical appliance connected to the mains.

asked Aug 18, 2021 in Physics Form 4

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Differentiate between nuclear fission and nuclear fusion as used in the study of physics.

asked Aug 18, 2021 in Physics Form 4

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1 answer

A stone of mass 4.0kg immersed in water and suspended from a spring balance with a string. The beaker was placed on a compression balance whose reading was 85N. The density of the stone was 3000kg/m-3while the density of the liquid was 800kg/m-3. Determine the;

asked Aug 18, 2021 in Physics Form 4

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The diagram below shows a pulley system, a mass of 10kg is raised 2m by an effort of 80N.

asked Aug 18, 2021 in Physics Form 1

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State the law of conservation of energy.

asked Aug 18, 2021 in Physics Form 3

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A car tyre is at pressure of 5.0x105 Pa at a temperature of 37℃. While it is running the temperature rises to 75℃. What is the new tyre pressure?(Assume the tyre does not expand)

asked Aug 18, 2021 in Physics Form 3

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1 answer

The figure below shows a set up used to verify pressure law.

asked Aug 18, 2021 in Physics Form 3

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1 answer

Explain how a gas exerts pressure.

asked Aug 18, 2021 in Physics Form 3

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1 answer

State the pressure law;

asked Aug 18, 2021 in Physics Form 3

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1 answer

The figure below shows a force distance graph for a car being towed on a level ground.

asked Aug 18, 2021 in Physics Form 3

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1 answer

A ball is dropped from the top of a vertical cliff 45m high. Given that the velocity just before striking the sandy beach is 30m/s, and the ball penetrate the sand to a depth of 10cm determine its average retardation.

asked Aug 18, 2021 in Physics Form 3

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1 answer

Water of mass 3kg initially at 20℃ is heated in an electric kettle rated 3.0kW. Thewater is heated until it boils at 100℃. Taking specific heat capacity of water=4200Jkg/K, heat capacity of kettle=450J/kg, specific latent heat of vapourisation of water =2.3MJ/kg, calculate;

asked Aug 18, 2021 in Physics Form 3

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