| A | B |
| chemical potential energy | ored in chemical bonds |
| elastic potential energy | energy stored by things that stretch,twist or compress |
| gravitational potential energy | energy stored by things attracted to each other by the force of gravity |
| joule | SIunit of energy |
| kinetic energy | energy in the form of motion,depends on the mass and velocity of the object |
| law of conservation of energy | states that energy can never be created or destroyed |
| mechanical energy | sum of potential and kinetic energy in a system |
| potential energy | stored energy due to position,can be converted to kinetic energy when something acts to release it |
| KINETIC ENERGY | kinetic energy =1/2 mass x velocity 2(squared) |
| GRAVITATIONAL POTENTIAL ENERGY | GPE=mass x 9.8m/s(2)squared x h(m) |