| A | B |
|---|
| Acceleration | The rate at which velocity changes with time |
| Air Drag | Frictional resistance due to motion through air |
| Free Fall | Motion under the influence of gravitational pull only |
| Friction | Resistive force that opposes motion |
| Inertia | The property of things to resist change in motion |
| Inverse relationship | When one value increases the other decreases |
| Kilogram | The fundamental SI unit of mass |
| Newton's second law | A = F/M |
| mass | Measure of inertia |
| terminal speed | speed at which acceleration stops because air resistance balances weight |
| terminal velocity | Terminal speed with direction |
| Volume | The quantity of space an object occupies |
| Weight | The force of gravity on an object |
