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प्रश्न
Write true or false for a given statement.
Heat flows from a body at a high temperature to a body at a low temperature when they are kept in contact.
पर्याय
True
False
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उत्तर
True.
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संबंधित प्रश्न
Write true or false for a given statement.
All solids expand by the same amount when heated to the same rise in temperature.
Write true or false for a given statement.
Telephone wires are kept tight between the two poles in summer.
Fill in the blank
Liquids expand _______ than the solids.
Fill in the blank
Metals are _______ of heat.
Select the correct alternative
The temperature of pure melting ice is
One end of a steel girder in a bridge is not fixed, but is kept on roliers. Give the reason.
What are the good and bad conductors of heat ? Give two examples of each.
Name a liquid which is a good conductor of heat.
Select good and bad conductors of heat from the following:
copper, mercury, wood, iron, air, saw-dust, cardboard, silver, plastic, wool.
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 |
