Gravitational Potential Energy
Gravitational Potential Energy
Gravitational Potential Energy :
The energy possessed by an object due to its height is known as gravitational potential energy. When an object is raised through a certain height above the ground, its energy increases.This is because the work is done on it against gravity while it is moving upwards. Similarly when an object is allowed to fall from higher level to a lower level it gains speed due to gravitational pull, i.e., it gains kinetic energy. Therefore, as the distance of the object from the ground level is increasing, the body is converting its kinetic energy into potential energy. The magnitude of its gravitational potential energy is equivalent to the amount of work done by the weight of the body in causing the fall.
A stone of mass 2 kg is raised through 2 m height : | |||
| Right Option : D | |||
| View Explanation | |||
An object of mass 2 kg is raised through a height h. Its potential energy is increased by 2 J. Find the height h. | |||
| Right Option : A | |||
| View Explanation | |||
An object of mass 1kg has a P.E. of 1 J relative to the ground when it is at a height of | |||
| Right Option : A | |||
| View Explanation | |||
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