Question

what happens to the motion of particles of a substance when temperature increases or decreases? an increase in temperature causes particles to move faster, while a decrease in temperature causes them to move slower. particles move in a circular motion when temperature changes. particles remain stationary regardless of temperature changes. temperature changes do not affect particle motion at all.

Explanation:

Temperature is related to particle - kinetic energy. Higher temp means more kinetic energy, faster motion; lower temp means less kinetic energy, slower motion.

Answer:

An increase in temperature causes particles to move faster, while a decrease in temperature causes them to move slower.