Advertisements
Advertisements
प्रश्न
What do you understand by thermal expansion of a substance ?
Advertisements
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.
APPEARS IN
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
On heating a body, its temperature _______.
Why do telephone wires sag in summer ?
One end of a steel girder in a bridge is not fixed, but is kept on roliers. Give the reason.
Describe an experiment to show that air expands on heating.
Why is a tea kettle provided with an ebonite handle?
Why is a ventilator provided in a room?
Why are chimneys provided over furnace in factories?
When we heat them the force of attraction between the molecules decreases and the ice cubes become ______.
When heat energy is added to a substance, the kinetic energy of its particles ______ and so the particles move at a higher speed.
