Why can't there be perpetual motion motion?

Answer 1

EnergyIf you do not already know, Energy Cannot be created or destroyed, only transformed from one form to another, as is shown in E=mc2. Perpetual motion is impossible because all the kinetic energy required to move the object will be changed into another type of energy, such as heat or sound.Perpetual motionThink of a spinning top on a table. When you spin it, it turns round and round (obviously :p) and eventually stops, but why? Lets think of all the factors in play. There's air resistance, which slows down the top. There's friction between the table and the top, and of course there's gravity acting all the time on the top. All of these factors combined make it impossible for the top to continue spinning forever. This is why perpetual motion is impossible.