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प्रश्न
Fill in the blank
Still air is an __________ of heat.
उत्तर
Still air is an insulator of heat.
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संबंधित प्रश्न
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
In a thermometer, the commonly used liquid is _______
Fill in the blank
Gases expand _______ than the liquids.
Name two substances which expand on heating.
Why are gaps left between successive rails on a railway track ?
Why is a cement floor laid in small pieces with gaps in between?
State which expands more, when heated to the same temperature : solid, liquid or gas ?
Select good and bad conductors of heat from the following:
copper, mercury, wood, iron, air, saw-dust, cardboard, silver, plastic, wool.
______ is greater for liquids than solids and it is maximum in gases.
Explain the following effects of heat.
Expansion
