| A | B |
| kinetic energy | due to an objects motion (mass and speed) |
| sound energy | coordinated motion of particles in an object |
| elastic energy | due to the deformation of an object that is elastic |
| electrical energy | due to the flow of electrons |
| thermal energy | due to the random motion of particles |
| gravitational energy | due to being raised in a gravitational field |
| chemical energy | stored in chemical bonds |
| solar energy | due to electromagnetic waves |