Advertisements
Advertisements
प्रश्न
Name the type of energy (kinetic energy K or potential energy U) possessed in the given case:
A stretched wire
विकल्प
Kinetic energy
Potential energy
Advertisements
उत्तर
Potential energy
APPEARS IN
संबंधित प्रश्न
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is at the highest point .
State different forms of potential energy and give one example of each.
Name the energy changes for each of the following cases:
dynamo
State the energy transformation on the following:
Electricity is obtained from wind energy.
Show that in case of a body falling freely under gravity, total mechanical energy remains conserved (neglect air resistance).
A body is thrown vertically upwards. Its velocity keeps on decreasing. What happens to its kinetic energy as its velocity becomes zero?
A ball of mass 50 g falls from a height of 2m and rebounds from the ground to 1.6 m. Find:
(i) The potential energy possessed by the ball when initially at rest.
(ii) The kinetic energy of the ball before it hits the ground.
(iii) The final potential energy of the ball.
(iv) The loss in kinetic energy of the ball on collision. (Take: g = 10N kg−1)
Match the pairs.
| Group 'A' | Group 'B' | ||
| (1) | Rolling object | (a) | Heat energy |
| (2) | Food | (b) | Atomic energy |
| (3) | Stretched bow | (c) | Kinetic energy |
| (4) | Sunlight | (d) | Potential energy |
| (5) | Uranium |
(e)
|
Chemical energy
|
What is meant by energy?
The major problem in harnessing nuclear energy is how to
