Front

Thermal energy comes from the ______ energy of the atoms and molecules that make up the matter.

Back

Kinetic

Front

Kinetic energy is the energy of ______.

Back

Motion

Front

What happens to an object as its thermal energy increases?

Back

It heats up.

Front

As kinetic energy of the molecules in a substance increases, the temperature __________.

Back

increases

Front

Atoms have kinetic energy because they are always ______.

Back

vibrating

Front

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

Back

average

Front

A substance might freeze when thermal energy is ______ the substance.

Back

removed from

Front

Removing thermal energy from a substance causes its atoms to vibrate ______.

Back

slower

Front

Thermal energy always moves from a ______ area to a ______ area.

Back

warmer, cooler

Front

A chemical reaction that ______ energy can be used to heat up other substances.

Back

releases