| A | B |
|---|
| Frame of Reference | a system of objects that are not moving with respect to one another. |
| Relative Motion | movement in relation to a frame of reference. |
| Distance | length of a path between point A and point B |
| Vector | a quantity that has magnitude and direction. |
| Resultant vector | the vector sum of two or more vectors. |
| Average speed | Total distance divided by total time |
| speed | ratio of the distance and time an object moves. |
| Instantaneous speed | rate an object is moving at a given moment in time. |
| Velocity | speed in a given direction. |
| Acceleration | rate at which velocity changes. |
| Free Fall | The movement of an object toward earth solely because of gravity. |
| Constant acceleration | a steady change in velocity. |
| Linear graph | data points form a straight line. |
| Nonlinear graph | data points form a curve. |
