| A | B |
|---|
| Momentum | Mass X Speed |
| Speed | Distance / Time |
| Acceleration | Vf-Vo/Time |
| Velocity | Speed + Direction |
| Friction | The force that opposses motion |
| Gravity | Force that pulls objects together |
| Centripetal Force | Keeps objects moving in a circular path |
| Balanced Forces | No net movement, equal in all directions |
| Unbalanced forces | Acceleration, objects move in direction of greater force |
| Constant Speed | No acceleration |
| Frame of Reference | What you compare motion to |
| Circular motion | Accelerates even at constant speed because of change in direction |
| Potential Energy | Energy of position (no movement, but movement potential) |
| Kinetic Energy | Energy of motion |
| Inertia | The tendancy of things to keep doing what they are already doing |
| Friction | The force that opposes motion |
| Newton's First Law | Inertia |
| Friction in the air | Air resistance |
| Newton's Second Law | Force = Mass X Acceleration |
| COnservation of Momentum | Transferring the mometum of one object to another |
