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प्रश्न
What is the main energy transformation that occur in:
Charging of a battery.
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उत्तर
Electric energy to chemical energy.
संबंधित प्रश्न
Define the term kinetic energy. Give one example of a body which possesses kinetic energy.
What do you understand by the kinetic energy of a body?
State the work energy theorem.
Select the renewable and non-renewable sources of energy from the following:
Diesel
What is the main source of energy for earth?
State two advantages of producing electricity from solar energy.
State the energy changes which take place when:
A battery lighting up a bulb.
A girl of mass 35 kg climbs up from the first floor of a building at a height 4 m above the ground to the third floor at a height 12 m above the ground. What will be the increase in her gravitational potential energy? [g = 10 ms-2]
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
|
