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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.
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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
Define the term potential energy of a body.
A body at a height possesses ______.
Two bodies A and B of equal masses are kept at heights of h and 2h respectively. What will be the ratio of their potential energies?
Is potential energy a vector or a scalar quantity?
If 784 J of work was done in lifting a 20 kg mass, calculate the height through which it was lifted. (g = 9.8 m/s2)
When a ball is thrown vertically upwards, its velocity goes on decreasing. What happens to its potential energy as its velocity becomes zero?
The potential energy of your body is least when you are ______.
The energy, possessed by an object due to its position is called ______.
Which of the following is the example potential energy?
What energy is possessed by stretched rubber?
