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प्रश्न
Select the correct alternatives
When we rub our hands
विकल्प
kinetic energy changes into potential energy
mechanical energy changes into heat energy
potential energy changes into kinetic energy
heat energy changes into mechanical energy.
उत्तर
mechanical energy changes into heat energy
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संबंधित प्रश्न
Write true or false of the following statement.
In an electric fan, electrical energy changes into the mechanical energy.
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| COLUMN A | COLUMN B |
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| 2. Burning | 2. vibrations |
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| 4.Sound energy | 4.kinetic energy |
| 5.Nuclear energy | 5.joule |
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