Thermal Energy Review

Front

What is the transfer of energy by electromagnetic waves called?

Back

Radiation

Front

What happens to heat when a 50°C liquid and a 10°C liquid are placed in a 20°C water bath?

Back

Heat will move from the 50°C liquid to the 20°C water bath and from the 20°C water bath to the 10°C liquid until thermal equilibrium is reached.

Front

Which block will increase in temperature most rapidly when exposed to light?

Back

Block 4, as it reflects the least light and absorbs the most energy.

Front

What happens to the thermal energy of a substance as the number of particles increases at a given temperature?

Back

The more thermal energy it has.

Front

What is the process called when heat is transferred from one particle of matter to another without the movement of matter itself?

Back

Conduction

Front

What is conduction?

Back

The transfer of heat through direct contact between materials.

Front

What is convection?

Back

The transfer of heat through the movement of fluids (liquids and gases).

Front

What is radiation?

Back

The transfer of energy through electromagnetic waves, such as light.

Front

What is thermal equilibrium?

Back

The state in which two objects in contact with each other reach the same temperature.

Front

What is the role of insulation in thermal energy transfer?

Back

Insulation reduces the transfer of heat between objects.