Conduction, Convection, Radiation

Question 1

What is conduction?

Answer 1

Conduction is when a metal or a solid is heated, the particles vibrate which transfers energy to the particles neighbour, which caused the object to fully heat up.

Question 2

What is an insulator?

Answer 2

A poor conductor E.g air, wool

Question 3

What is the definition of heat energy in a liquid or gas transferred from a hot place to a cooler place.

Answer 3

This is called convection.

Question 4

What are the differences between conduction and convection?

Answer 4

CONDUCTION: occurs through a solid, heat particles gained by kinetic energy then transferred to their neighbour.
CONVECTION: occurs through a liquid and a gas, heat transferred by movement of particles.

Question 5

What are the similarities between conduction and convection?

Answer 5

They both use a transfer of heat and use particles

Question 6

What is radiation?

Answer 6

1) Transfer of heat using waves not heat particles.
2) Emitted by any hot object
3) Carries thermal energy from a hotter place to a cooler one.
4) Travels away from source in all directions.