| A | B |
|---|
| force | a push or a pull |
| gravity | attractive (pulling) force between objects |
| law of universal gravitation | law that states every object in the universe attracts (pulls) every other object |
| mass | the matter that makes up an object |
| weight | the force of gravity on an object |
| inertia | an object resisting (fighting) a change in motion |
| Newton´s first law of motion | law that states an object at rest will stay at rest and an object in motion (moving) will stay in motion unless acted on by a force |
| distance | the space between two objects |
