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प्रश्न
Fill in the blank
Metals are _______ of heat.
उत्तर
Metals are conductors 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
We use a ________ for measuring the temperature of a body.
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 ?
Describe one experiment to show that liquids expand on heating.
An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into the water. Explain the reason.
Select good and bad conductors of heat from the following:
copper, mercury, wood, iron, air, saw-dust, cardboard, silver, plastic, wool.
Why are quilts filled with fluffy cotton?
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 ______.
______ is greater for liquids than solids and it is maximum in gases.
