| A | B |
|---|
| speed | distance traveled in a certain amount of time |
| formula for speed | distance/time |
| velocity | speed in a particular direction |
| accelleration | rate of change in velocity |
| momentum | speed X mass |
| force | any push or pull that causes movement |
| newton | SI unit for force |
| friction | force that opposes motion between to surfaces |
| drag | friction between a solid and a liquid or gas |
| air resistance | friction between a solid and the air |
| gravity | the attraction between any objection with mass |
| inertia | an objects tendency to maintain a constant velocity |
| law of conservation of momentum | momentum can transfer from one object to another, but does not change in total amount |
