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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.
Fill in the blank
_________ determines the degree of hotness or coldness of a body.
Name the instrument used to measure the temperature of a body.
What are the good and bad conductors of heat ? Give two examples of each.
Name a liquid which is a good conductor of heat.
In summer, ice is kept wrapped in a gunny bag. Explain the reason.
Why is an oven made of double walls with the space in between filled with cork ?
Explain why the water pipes are covered with cotton during very cold weather.
The applied heat energy can be realized as an increase in the average kinetic energy of the molecules.
Explain the following effects of heat.
Expansion
