Question

Which is the best example of the law of conservation of energy

Answer 1

Water is a good example of the law of conservation because, water when not moving has potential energy, and when moving like for example tap water, it turns kinetic.

Answer 2

Law of conservation of energy states that energy cannot be created or destroyed, it can only be converted from one to another. The transfer of energy by law of conservation of energy can be illustrated by a rolling skateboard slows down because some of its kinetic energy changes to heat. Here the kinetic energy changes to heat that brakes to the wheels due to friction. It is considered as the law of conservation of energy.