Answer: Graph 3 shows the correct effect of heat energy on the motion of molecules of matter.
Explanation:
The energy related to the motion of the particles is related to the kinetic energy of the particles. Kinetic energy of the particles depend upon the temperature.
[tex]\text{Kinetic energy}\propto \text{Temperature}[/tex]
As, kinetic energy is directly proportional to the temperature. Increase in temperature would result in the increase of kinetic energy which increases the motion of molecules of matter and vice-versa.
Hence, the correct representation will be Graph 3.
