The measure of energy in motion of particles in matter is called kinetic energy.

Here's why:

* Kinetic energy is the energy an object possesses due to its motion.

* Particles in matter are constantly moving, even if the matter appears stationary.

* The faster the particles move, the higher their kinetic energy.

Therefore, the higher the kinetic energy of the particles in matter, the more energy the matter has overall.

Here are some additional points:

* Temperature is a measure of the average kinetic energy of the particles in a substance. The hotter something is, the faster its particles move, and the higher its kinetic energy.

* Heat is the transfer of thermal energy from one object to another due to a temperature difference. This transfer can occur through conduction, convection, or radiation.

Let me know if you'd like more information on any of these concepts!