Review Thermal Energy

Front

What happens to molecules in colder objects?

Back

Molecules tend to move slowly.

Front

In convection, what rises and what sinks?

Back

Hot gases/liquids will rise and cold gases/liquids will sink.

Front

Is it possible to reach absolute zero?

Back

No, it is not possible to reach absolute zero.

Front

What type of heat transfer is demonstrated by the sun warming a car on a hot summer day?

Back

Radiation.

Front

What type of heat transfer occurs when roasting marshmallows around a campfire?

Back

Radiation.

Front

Define thermal energy.

Back

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

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).

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves.

Front

What is absolute zero?

Back

Absolute zero is the theoretical temperature at which all molecular motion stops, equivalent to -273.15°C.