Thermal Energy and Heat Transfer

Front

What is the movement of thermal energy from a warmer object to a cooler object called?

Back

Heat

Front

In which direction does heat transfer occur?

Back

Only from warm objects to colder ones.

Front

What happens to molecular motion when temperature is increased?

Back

Molecular motion increases.

Front

What happens to particles as they cool down?

Back

They slow down.

Front

Why does a cold metal spoon placed in boiling water become hot?

Back

Thermal energy is transferred from the water to the spoon.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance.

Front

What is the difference between heat and temperature?

Back

Heat is the transfer of thermal energy, while temperature is a measure of the average kinetic energy of particles.

Front

What are the three methods of heat transfer?

Back

Conduction, convection, and radiation.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is convection?

Back

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