One of the fundamental laws of physics says that energy cannot be created or destroyed, but it can be converted from one form to another.

Conversion is explaining that from motion energy(Kinetic energy) is converting into a other form of energy example potential.

Potenial energy is energy that can be use like magnetic, gravitional, chemical, electrical, elastic and nuclear. The picture of fireworks shows chemical energy.

Motion energy(Kinetic energy) is any moving object that users kinetic energy. Like heat, light, sound and kinetic energy.

The sun shows energy of heat.