Question

The energy associated with the random motion of molecules or atoms within a substance is A. electromagnetic energy. B. thermal energy. C. gravitational potential energy. D. chemical energy.

Answer 1

Answer-The answer is B Thermal energy

Explanation- The energy associated with the random motion (kinetic energy) of molecules or atoms within a substance is thermal energy. This energy can usually be calculated from temperature measurements. As a sample gets hotter, its thermal energy increases.

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Answer 2

I think B. thermal energy.
When we heat up a substance, we increase the motion or vibration of the particles.