Intro to Thermal Energy

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the kinetic energy of atoms and molecules in matter.

Front

What happens to a substance when thermal energy is removed from it?

Back

The substance may freeze.

Front

What type of energy is kinetic energy?

Back

Kinetic energy is the energy of motion.

Front

What does temperature measure?

Back

Temperature measures the average kinetic energy of the atoms in a substance.

Front

In which direction does thermal energy move?

Back

Thermal energy always moves from a warmer area to a cooler area.

Front

What is the relationship between thermal energy and temperature?

Back

As thermal energy increases, the temperature of a substance typically increases.

Front

What happens to the kinetic energy of molecules when a substance is heated?

Back

The kinetic energy of the molecules increases.

Front

What is the effect of adding thermal energy to a solid?

Back

Adding thermal energy can cause the solid to melt into a liquid.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials.

Front

What is convection?

Back

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