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प्रश्न
Give one example when:
Light energy changes to chemical energy.
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उत्तर
During photosynthesis, light energy changes to chemical energy.
संबंधित प्रश्न
A certain form of energy which is not sourced directly or indirectly from the sun and does not cause any pollution is very easily converted into electricity. This form of energy is, however, not available everywhere. Moreover, it is technically very difficult and expensive to obtain it. Name the form of energy.
Give one example to show the conversion of potential energy to kinetic energy when put in use.
State the energy changes in the following case while in use:
an electric bulb
State two characteristic which a source of energy must have.
State two advantages of producing electricity from solar energy.
State two disadvantages of using wind energy for generating electricity.
State the energy transformation on the following:
Electricity is obtained from nuclear energy.
What kind of energy is possessed in a situation when?
An electron spinning around the nucleus.
State the energy changes which take place when:
A stone projected vertically upwards, returns back to the thrower.
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
|
