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प्रश्न
What is the difference between gravitational potential energy and elastic potential energy? Give one example of a body having gravitational potential energy and another having elastic potential energy.
उत्तर
We can differentiate between gravitational and elastic potential energy as -
| Gravitational potential energy | Elastic potential energy |
| A body possesses gravitational potential energy if it is placed any height above the ground. (ground is considered as the refence level) | A body possesses elastic potential energy if its shape is changed by squeezing, pushing or pulling. |
| Gravitational force is responsible for this energy. | Elastic property of the body is responsible for this energy. |
Example:
(i) Gravitational potential energy - A book kept on a table possesses gravitational potential energy because of its position above the ground.
(ii) Elastic potential energy - The stretched rubber string of a catapult possesses elastic potential energy because of the change in shape of the string.
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संबंधित प्रश्न
Gravitational potential energy U = mass × force of gravity on unit mass × ..........
State two factors on which the potential energy of a body at a certain height above the ground depends.
Find the gravitational potential energy of 2.5 kg mass kept at a height of 15 m above the ground. The force of gravity on mass 1 kg is 10 n.
Define the term potential energy of a body.
State whether the following statement is true or false :
The potential energy of a body of mass 1 kg kept at a height of 1 m is 1 J.
Give one example each of a body possessing : (i) kinetic energy, and (ii) potential energy.
If we increase the velocity of a car moving on a flat surface to four times its original speed, its potential energy ______.
How much energy is gained by a box of mass 20 kg when a man, raises the box by 0.5 m in order to place it inside the bus? (g=10 m/s-2)
The energy, possessed by an object due to its position is called ______.
Which of the following is the example potential energy?
