The measure of the energy of motion of particles of matter

Mechanical energy is the top suject while it has two types: Kinetic energy which is the energy in motion and potential energy which is the energy in reserve. The measure of both energy in motion and reserve is called Joules. Joules then is the International System of Measurement unit for energy, this is mainly used to account for scaling energy in all aspects.

Answer: temperature.

Explanation:

This is the relationship between energy, heat, and temperature.

Thermal energy, or heat energy, is the transference of the kinetic energy of the molecules of matter from a warmer matter to a cooler one.

The particles (molecules) of matter are in constant motion, either translating or vibrating or both. Kinetic energy is the energy related to the motion (KE = 1/2 * mass * speed²) : the faster the molecules vibrate or translate the higher the average knietic energy.

Temperature is the measure of how cold or hot a substance it. The temperature is, indeed, a measure of the average kinetic energy of the molecules in the matter.