Intro to Thermal Energy

Front

What happens to the temperature as the kinetic energy of the molecules in a substance increases?

Back

The temperature increases.

Front

What does temperature measure in a substance?

Back

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

Front

What occurs to the vibration of atoms when thermal energy is removed from a substance?

Back

The atoms vibrate slower.

Front

What type of chemical reaction can be used to heat up other substances?

Back

A chemical reaction that releases energy.

Front

What happens to an object as its thermal energy increases?

Back

It heats up.

Front

Define thermal energy.

Back

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

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion.

Front

How does thermal energy relate to temperature?

Back

Thermal energy is related to temperature as it is the total energy, while temperature measures the average energy.

Front

What is the effect of increasing thermal energy on the state of matter?

Back

Increasing thermal energy can cause a substance to change from solid to liquid (melting) or from liquid to gas (evaporation).

Front

What is conduction?

Back

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