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प्रश्न
Give one relevant example for the following transformations of energy:
Chemical energy to heat energy.
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उत्तर
Burning of wood, coal etc.
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संबंधित प्रश्न
Name the type of energy (kinetic or potential) possessed by the following:
A moving bus.
Give one example to show that the sum of potential energy and kinetic energy remains constant if friction is ignored.
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
State the energy changes in the following case while in use:
a ceiling fan
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
Is it possible that a body may possess energy even when it is not in motion?
What kind of energy is possessed in a situation when?
A horse running along a level road
Give one example when:
Potential energy changes to electric 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
|
Ocean thermal energy is due to
