What happens when energy is transforming?

Answer 1

Energy in a system may be transformed so that it resides in a different state. Energy in many states may be used to do many varieties of physical work. Energy may be used in natural processes or machines, or else to provide some service to society (such as heat,light, or motion). For example, an internal combustion engine converts the potentialchemical energy in gasoline and oxygen into heat, which is then transformed into the propulsive energy (kinetic energythat moves a vehicle. A solar cell converts solar radiation into electrical energy that can then be used to light a bulb or power a computer.
Energy transformation can also be explained in terms of potential and kinetic energy. Potential energy, the stored energy of a system, can be converted into kinetic energy, the energy of movement.