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प्रश्न
Fill in the blank
_________ determines the degree of hotness or coldness of a body.
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उत्तर
Temperature determines the degree of hotness or coldness of a body.
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संबंधित प्रश्न
Write true or false for a given statement.
Kerosene contracts on heating.
Why are gaps left between successive rails on a railway track ?
State which expands more, when heated to the same temperature : solid, liquid or gas ?
What are the good and bad conductors of heat ? Give two examples of each.
Why is a tea kettle provided with an ebonite handle?
In summer, ice is kept wrapped in a gunny bag. Explain the reason.
Why is a ventilator provided in a room?
Why do we prefer to wear white or light coloured clothes in summer and black or dark coloured clothes in winter ?
Match the following
| 1. | Solid to liquid | a. | Condensation |
| 2. | Liquid to gas | b. | Deposition |
| 3. | Gas to solid | c. | Melting |
| 4. | Gas to liquid | d. | Vaporization |
When heat energy is added to a substance, the kinetic energy of its particles ______ and so the particles move at a higher speed.
