Heat Transfer

Front

What is thermal expansion?

Back

Thermal expansion is the increase in the volume of a substance when its temperature increases.

Front

From which type of objects does thermal energy always move?

Back

Thermal energy always moves from warmer objects to cooler objects.

Front

What type of heat transfer occurs when your feet burn on hot sand?

Back

Conduction is the type of heat transfer that occurs between the bottom of your foot and the sand.

Front

What happens to the liquid in a thermometer as the temperature increases?

Back

The liquid in a thermometer expands as the temperature increases.

Front

How does copper transfer heat in cooking pans?

Back

Copper transfers heat to the pan by conduction.

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 sunlight.

Front

What is the relationship between temperature and kinetic energy?

Back

As temperature increases, the kinetic energy of the particles in a substance also increases.

Front

What is an example of thermal expansion in everyday life?

Back

An example of thermal expansion is the way metal railroad tracks can bend on hot days.