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प्रश्न
What do you understand by thermal expansion of a substance ?
उत्तर
The expansion of a substance when, heated, is called thermal expansion.
Or
Thermal expansion is the tendency of matter to change .in shape, area and volume in response to a change in temperature.
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संबंधित प्रश्न
Write true or false for a given statement.
Kerosene contracts on heating.
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On heating a body, its temperature _______.
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The temperature of boiling water is _______
Name two substances which expand on heating.
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Describe an experiment to show that air expands on heating.
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.
In summer, ice is kept wrapped in a gunny bag. Explain the reason.
When we heat them the force of attraction between the molecules decreases and the ice cubes become ______.
