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प्रश्न
Fill in the blank
Metals are _______ of heat.
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उत्तर
Metals are conductors of heat.
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संबंधित 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.
Fill in the blank
Liquids expand _______ than the solids.
Select the correct alternative
The temperature of pure melting ice is
Why do telephone wires sag in summer ?
Iron rims are heated before they are fixed on the wooden wheels. Explain the reason.
An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into the water. Explain the reason.
Select good and bad conductors of heat from the following:
copper, mercury, wood, iron, air, saw-dust, cardboard, silver, plastic, wool.
Explain why we wear woolen clothes in winter.
During day time, air blows from ______ to ______.
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 |
