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प्रश्न
Give one example when:
Potential energy changes to electric energy.
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उत्तर
The potential energy of stored water in dams, changes to electric energy in generators.
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संबंधित प्रश्न
Fill in the blank
The energy possessed by a body due to its motion is called ______ energy.
A boy of mass m climbs up a staircase of vertical height h.
(a) What is the work done by the boy against the force of gravity?
(b) What would have been the work done if he uses a lift in climbing the same vertical height?
A pebble is thrown up. It goes to a height and then comes back on the ground. State the different changes in form of energy during its motion.
Name the two groups in which various sources of energy are classified?
Name a device in which solar energy is converted into electricity state its two uses.
Explain the principle of working of the windmill for generating electricity.
State the energy changes which take place when:
A toy car spring is wound and car is made to run on level floor.
Give one example when:
Electrical energy to heat energy.
What is meant by energy?
