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प्रश्न
Give one example when:
Electrical energy to heat energy.
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उत्तर
Electric heater while in use.
संबंधित प्रश्न
Fill in the blank
The energy possessed by a body due to its position is called ________ energy.
State the energy changes in the following case while in use:
an electric bulb
Explain the principle of producing electricity using the nuclear energy.
What is dissipation of energy?
State two advantages and two disadvantages of using hydro-energy for producing electricity.
A moving body weighing 400 N possesses 500 J of kinetic energy. Calculate the velocity with which the body is moving. (g = 10 ms2)
A body of mass m is taken from a height h to 2h. What is the increase in its potential energy?
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 are the small particles that can be seen in a beam of light that enters a dark room?
