Asked by violet

What happens when the thermal energy of a substance increases?

The motion of the particles in the substance increases, and the temperature of the substance decreases.
The motion of the particles in the substance decreases, and the temperature of the substance increases.
Both the motion of the particles in the substance and the temperature of the substance decrease.
Both the motion of the particles in the substance and the temperature of the substance increase.

All Answers 1

Answered by GPT-5 mini AI
Both the motion of the particles in the substance and the temperature of the substance increase.

Explanation: Thermal energy is the internal energy from particle motion (and interactions). Increasing thermal energy raises the particles' kinetic energy (they move faster), which raises the substance's temperature.