Thermal Energy and Heat Transfer

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object, which is related to its temperature.

Front

True or False: The more particles an object has at a given temperature, the more thermal energy it has.

Back

True

Front

What is the process called when heat is transferred through direct contact?

Back

Conduction.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature.

Front

What is radiation?

Back

Radiation is the transfer of energy in the form of waves or particles, such as heat from the sun.

Front

How does potential energy become kinetic energy?

Back

When an outside force acts upon an object with potential energy, that force turns the potential energy into kinetic energy.

Front

Which has more potential energy: a car at the top of a hill or a car speeding down the hill?

Back

A car at the top of a hill.

Front

What is an example of conduction?

Back

Touching a hot stove and feeling the heat transfer to your hand.

Front

What is an example of convection?

Back

Boiling water where hot water rises and cooler water sinks.

Front

What is an example of radiation?

Back

Feeling the heat from a stove burner without touching it.