Recent questions in Physics

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The figure below shows a circuit diagram for a photocell.

asked Aug 18, 2021 in Physics Form 4 by anonymous

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

asked Aug 18, 2021 in Physics Form 4 by anonymous

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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 by anonymous

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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 by anonymous

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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 by anonymous

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State the law of conservation of energy.

asked Aug 18, 2021 in Physics Form 3 by anonymous

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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 by anonymous

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

asked Aug 18, 2021 in Physics Form 3 by anonymous

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Explain how a gas exerts pressure.

asked Aug 18, 2021 in Physics Form 3 by anonymous

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State the pressure law;

asked Aug 18, 2021 in Physics Form 3 by anonymous

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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 by anonymous

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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 by anonymous

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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 by anonymous

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Explain why it is advisable to use the pressure cooker for cooking at high altitudes.

asked Aug 18, 2021 in Physics Form 1 by anonymous

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The figure 4 below shows an object of mass 0.2kg whirled in vertical circle of radius 0.5m at uniform speed of 5m/s.

asked Aug 18, 2021 in Physics Form 4 by anonymous

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Distinguish between angular and linear velocity.

asked Aug 18, 2021 in Physics Form 3 by anonymous

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What is the gravitational potential energy stored in a spring when stretched through 4cm by a force of 2N

asked Aug 18, 2021 in Physics Form 1 by anonymous

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How much current is taken by a bulb whose rate is 100Ω and which is designed for mains supply of 240V?

asked Aug 18, 2021 in Physics Form 4 by anonymous

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Figure 3 shows a small toy boat floating on water in a basin. X and Y are two points near the toy.

asked Aug 18, 2021 in Physics Form 1 by anonymous

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The efficiency of a pulley system is always less than 100%. State two reasons.

asked Aug 18, 2021 in Physics Form 1 by anonymous

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