Question

The energy associated with the motion of particles in a substance is called __________.

Answer 1

The energy associated with the motion of particles in a substance is called thermal energy, which is a manifestation of the kinetic energy of the particles at the microscopic level.

Step-by-step explanation:

The energy associated with the motion of particles in a substance is called thermal energy. Kinetic energy, which is the energy of motion, contributes to thermal energy as the particles move, vibrate, or rotate. As the temperature of a substance increases, so does the kinetic energy of its particles, leading to greater thermal energy. The total internal energy of a substance, often denoted as U or E, includes all forms of energy within a substance, of which kinetic energy is a significant part.

If we consider the kinetic-molecular theory, the temperature is related to the average kinetic energy of the particles of a substance. Hence, an increase in temperature reflects an increase in the kinetic energy and thus the thermal energy of a substance.

Answer 2

It is the motion of particles that creates a form of energy called thermal (heat)energy that is present in all matter. The particles in solids are tightly packed and can only vibrate