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प्रश्न
State the energy changes which take place when:
A bulb glows, when torchlight is switched on.
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उत्तर
The chemical energy of cell changes to electric energy. The electric energy first changes to heat and finally to light energy.
संबंधित प्रश्न
Name the process used for producing electricity using nuclear energy.
Select the correct alternatives
The energy stored in an electric cell is
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is just in the middle .
Select the renewable and non-renewable sources of energy from the following:
Wind
State the energy transformation on the following:
Electricity obtained from hydro energy.
Give one example when:
Sound energy changes to electric energy.
What is the form of that graph between
(i) K.E. and velocity for a constant mass?
(ii) K.E. and mass for a constant velocity?
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
|
Can you tell?
What are the various forms of energy?
You do not have rangoli powder. What things can you use as an alternative?
