Conduction and convection

What is conduction?

The process where vibrating particles transfer energy to neighbouring particles

Where does conduction take place?

Solids

What is convection?

Where energetic particles move away from hotter to cooler regions

Where does convection take place?

Liquids and gases

What do radiators create?

Convection currents

What is a convection current?

The flow that transfers heat within a fluid

How do radiators create a convection current?

• energy is transferred from the radiator to the nearby air particles by conduction
• the air near the radiator becomes warmer and less dense.
• the warm air rises and is replaced by cooler air
• the warm air cools and sinks
• the cycle repeats