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Physics GK · all questions

Work, Energy and Power
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What does the Kinetic Energy (KE) of a moving body depend upon?

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A man puts 13kg object on his head by raising the object 1.5m above from the surface of earth. Then work done will be: (g = 10ms-2)

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What is the energy in a compressed spring?

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A ball of mass 2 kg, moving with a velocity of 5m/s collides with another body of mass 4 kg at rest. What will be the velocity of both balls after the collision?

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What is the correct equation for finding the acceleration?

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A 20g bullet is fired horizontally at a velocity of 150 ms-1 with a 3 kg pistol. What is the regressive velocity of the pistol?

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If a boy leaves a gas-filled balloon that goes upward direction, its potential energy will be?

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An object of mass 20kg is moving at a velocity of 6m/s. What is the kinetic energy of the object?

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The gravitational potential energy of an object at a point above the ground. Is defined as the work done in . . . . . . . .

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A moving object essentially receives-

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An 8 kg iron ball and an 3 kg aluminium ball are dropped from a height of 20 meters. Which of the following quantity amount will be same in them above 10 m height from the ground?

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A force of 125 N is acting on an object, that object is moved up to 5 m in the direction of the force, what will be the work done by the force.

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. . . . . . . . particles have a greater kinetic energy-

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A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum

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What is wrong statement about kinetic energy?

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When a body falls freely under gravity then the work done by gravity is

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Capacity of doing work is known as-

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If the work done is negative, then what will be the angle between the force and displacement?

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A constant force acts on an object of mass 5 kg for a period of 2 seconds. This increases the velocity of the object from 4 ms-1 to 7 ms-1. Find the amount of force used.

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What does the kinetic energy equal?

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