Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two or more objects in contact with each other do not exchange heat energy, meaning they are at the same temperature.

Front

What type of heat transfer occurs through direct contact?

Back

Conduction.

Front

What type of heat transfer occurs in fluids (liquids and gases)?

Back

Convection.

Front

What type of heat transfer can occur through empty space?

Back

Radiation.

Front

What is the main principle of heat transfer?

Back

Heat always travels from hot to cold objects.

Front

What happens to the temperature of hot and cold water when they are mixed?

Back

They reach thermal equilibrium, meaning they become the same temperature.

Front

What is an example of conduction?

Back

A metal spoon getting hot when placed in a hot pot of soup.

Front

What is an example of convection?

Back

Warm air rising and cool air sinking in a room.

Front

What is an example of radiation?

Back

Feeling the warmth of the sun on your skin.

Front

What is the role of thermal energy in heat transfer?

Back

Thermal energy is the energy that is transferred between objects due to a temperature difference.