| A | B |
|---|
| Force | A push or a pull that acts on an object |
| Newton | The SI unit for force. |
| Net force | the sum total of all the vector forces acting on an object. |
| Friction | a force that opposes motion |
| Gravity | a force that acts toward the center of the Earth |
| Galileo | One of the first scientists to perform experiments with the motion of objects |
| Aristotle | Incorrectely proposed that moving objects require a force to keep them moving |
| Inertia | The property of an object to resist a change in motion |
| m/s/s | Units for acceleration |
| mg | Weight |
| Acceleation | the result of unbalanced forces |
