Unit 4: Thermal Energy (I.6C & I.6D)

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, which is related to its temperature.

Front

What happens to the kinetic energy of air as it gets hotter?

Back

Hotter air has higher kinetic energy.

Front

What type of heat transfer occurs when warm air rises and cool air sinks?

Back

Convection.

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 or gases).

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation.

Front

Why does a metal spoon feel hotter than a wooden spoon when both are left in hot soup?

Back

The metal spoon conducts heat better than the wooden spoon, transferring heat to your fingers more quickly.

Front

What is an insulator?

Back

An insulator is a material that does not conduct heat well, such as wood or plastic.

Front

What is a conductor?

Back

A conductor is a material that allows heat to pass through it easily, such as metals.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.