Energy is a critical and fundamental idea in science. It links nearly all of the natural phenomena. When we are saying that a body has energy, we imply that it has the capacity to do work. Water strolling down the stream has the capacity to do work, so it possesses energy. The energy of strolling water may be used to run water generators or water turbines. Energy exists in numerous forms, such as mechanical energy, heat energy, light energy, sound energy, electric energy, chemical energy, nuclear energy, etc. Energy may be converted from one form into another.
