Which answer choice BEST supports the idea that energy remains constant during an energy transformation? (A) They move faster and spread out, creating a lower density of molecules, or quantity of molecules in that
volume, at the bottom of the pot.
(B) The process repeats, creating a current of molecules sinking, heating up, rising, cooling down and
sinking again
(C) The ball continues losing potential energy and gaining kinetic energy until it reaches the bottom of the
hill.
(D) On Earth, however, the ball stops at the bottom of the hill due to the kinetic energy being transformed
into heat by the opposing force of friction