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प्रश्न
Fill in the blank
_________ determines the degree of hotness or coldness of a body.
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.
Heat flows from a body at a high temperature to a body at a low temperature when they are kept in contact.
Write true or false for a given statement.
Water is a bad conductor of heat.
Fill in the blank
Gases expand _______ than the liquids.
The fig. shows a glass tumbler containing hot milk which is placed in a tub of cold water. State the direction in which heat will flow.
What do you understand by thermal expansion of a substance ?
Why are gaps left between successive rails on a railway track ?
A glass stopper stuck in the neck of a bottle can be removed by pouring hot water on the neck of the bottle. Explain why ?
State one application of thermal expansion of liquids.
Why do we prefer to wear white or light coloured clothes in summer and black or dark coloured clothes in winter ?
When we heat them the force of attraction between the molecules decreases and the ice cubes become ______.
