i. During conduction, particles of the conductor leave their original place. ii. Hot water is heavier than cold water.

Question

Say whether true or false, correct and rewrite the false statement:

i. During conduction, particles of the conductor leave their original place.

ii. Hot water is heavier than cold water.

iii. A convection current always travels down wards.

iv. Every warm substance continuously emits heat in all directions around it self.

v. Air is a bad conductor of heat.

Answer 1

i. False. 

During conduction, particles of the conductor do not leave their original place, but only vibrate in their own place.

ii. False – Hot water is lighter than cold water

iii. False – A convection current always travels upwards.

iv. True

v. True