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प्रश्न
Why is a cement floor laid in small pieces with gaps in between?
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उत्तर
The floor is laid in small pieces with gaps in between to allow for the expansion during summer. However glass strips can be placed in the gaps.
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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.
Equal volumes of different liquids expand by different amounts when they are heated to the same rise in temperature.
Fill in the blank
Gases expand _______ than the liquids.
Name the instrument used to measure the temperature of a body.
State which expands more, when heated to the same temperature : solid, liquid or gas ?
Why are chimneys provided over furnace in factories?
During day time, air blows from ______ to ______.
In ice cubes, the force of attraction between the water molecules is ______.
When we heat them the force of attraction between the molecules decreases and the ice cubes become ______.
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 |
