| A | B |
|---|
| displacement | distance and direction between an object's beginning and ending point |
| reference point | a place or object that can be used to determine an object's position |
| position | location determined based on a reference point and reference directions |
| Speed = | Distance/Time |
| Units for measuring speed | m/h or m/s or km/min |
| Acceleration | rate at which velocity is changing |
| Force | a push or pull on an object |
| Force = | mass x acceleration |
| Unbalanced forces | cause motion |
| Balanced forces | do not cause motion |
| Velocity must include | speed and direction |
| vector | any meausrement that expresses size and direction (ex: velocity, acceleration, displacement) |
| change in velocity | change in speed or direction |
| straight horizontal line on a distance vs time graph | object not moving |
| straight upward line on a speed vs time graph | constant increasing speed |
| straight horizontal line on a speed vs time graph | object traveling at a constant speed |
| downward sloping line on a speed vs time graph | object slowing down at a consistent speed |
