Question

what is thermal energy?
the energy that stops particles from moving.
the energy used to create new particles.
the kinetic energy of just a single particle.
the total kinetic energy of all the particles in an object.

Explanation:

Thermal energy is defined as the total kinetic energy possessed by all the moving particles (atoms, molecules, ions) within a given object, as the motion of these particles generates heat-related energy. The other options are incorrect: thermal energy does not stop particle motion, is not used to create new particles, and is not limited to a single particle's kinetic energy.

Answer:

The total kinetic energy of all the particles in an object.