Advertisements
Advertisements
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.
पर्याय
True
False
Advertisements
उत्तर
True.
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.
Write true or false for a given statement.
Kerosene contracts on heating.
State one application of thermal expansion of liquids.
Name a liquid which is a good conductor of heat.
Name a solid which is a good conductor of heat.
Select good and bad conductors of heat from the following:
copper, mercury, wood, iron, air, saw-dust, cardboard, silver, plastic, wool.
Explain why we wear woolen clothes in winter.
Explain why the water pipes are covered with cotton during very cold weather.
Why is a ventilator provided in a room?
When heat energy is added to a substance, the kinetic energy of its particles ______ and so the particles move at a higher speed.
