Advertisements
Advertisements
प्रश्न
State the energy changes which take place when:
A body released from rest from the top of a building.
उत्तर
The potential energy changes to kinetic energy.
APPEARS IN
संबंधित प्रश्न
Define calorific value of a fuel.
State two disadvantages of geothermal energy.
State two factors on which the kinetic energy of a moving body depends.
Two toy-cars A and B of masses 500 g and 200 g respectively are moving with the same speed. Which of the two has the greater kinetic energy?
Name the type of energy (kinetic or potential) possessed by the following:
A compressed spring.
State the energy transformation on the following:
Electricity is obtained from nuclear energy.
What do you understand by the potential energy of the body?
Name the two groups in which various sources of energy are classified?
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
|
