Kinetic energy of a substance is the kinetic energy of its particles?

The kinetic energy of a substance is the average kinetic energy of its particles.

Kinetic energy is the speed of the particles. The faster they move the more kinetic energy they get the hotter they get and there particles spread out.

If the kinetic energy is high, the particles cause friction and the friction raises the heat of the object. If the kinetic energy is low, the object tends to be colder.

Well, i will answer the part I know... Kinetic energy is motion energy and potential energy is energy that is stored energy.

Temperature