Question

what is the relationship between the particles in an object and its thermal energy?
the particles are always moving, which gives the object thermal energy.
the movement of particles has no relationship to thermal energy.
the particles only have energy when they are not moving.
the faster the particles move, the less thermal energy an object has.

Explanation:

Thermal energy is the total kinetic energy of the particles in an object. All particles in matter are in constant motion, and this motion directly contributes to the object's thermal energy. The other options are incorrect: particle movement is directly tied to thermal energy, particles have energy when moving (not stationary), and faster particle movement means more (not less) thermal energy.

Answer:

A. The particles are always moving, which gives the object thermal energy.