click below
click below
Normal Size Small Size show me how
Chapter 11 Vocab
| Question | Answer |
|---|---|
| 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 | The length of a path between two points. |
| vector | A quantity that has magnitude and direction. |
| resultant vector | The vector sum of two or more vectors. |
| speed | The ratio of the distance an object moves to the amount of time the object moves. |
| average speed | The total distance traveled divided by the time it takes to travel that distance. |
| instantaneous speed | The rate at which an object is moving at a given moment of time. |
| velocity | The speed and direction in which an object is moving. |
| acceleration | The 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 | The displayed data form straight-line parts. |
| nonlinear graph | A curve connects the data points that are plotted. |