Heat

Question 1

Conduction

Answer 1

(Solids) vibrating particles pass on extra kinetic energy (heat) to neighbouring particles

Question 2

Convection

Answer 2

(liquids and gases) liquid and gas particles are free to move. Particles with more kinetic energy move from hotter to cooler regions taking their thermal energy with them.

Question 3

Radiation

Answer 3

Heat energy travels in waves

Doesn’t need particles

Question 4

Good conductors

Answer 4

Metals are good conductors of heat. Copper is one of the best and is used in wiring and pipes

Question 5

Poor conductors

Answer 5

Plastics, polystyrene and air are poor conductors and are used as insulators to keep heat in.

Question 6

Evaporation

Answer 6

Process by which a liquid becomes a gas. Evaporation takes thermal energy away from the surface on which it is occurring
Particles move further a part due to more kinetic energy

Question 7

Condensation

Answer 7

Process by which a gas becomes a liquid

Particles move closer together they have less kinetic energy

Question 8

Latent heat

Answer 8

Change in state but no change in temperature