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MOTIOn
Cht 1
| Question | Answer |
|---|---|
| motion | The state in which one object's distance from another is changing. |
| reference point | A place or object used for comparison to determine if an object is in motion. |
| International System of Units | A system of measurement based on multiples of ten and on established measures of mass, length, and time. |
| Distance | The length of the path between two points. |
| speed | The distance an object travels per unit of time. |
| average speed | The overall rate of speed at which an objects moves; calculated by dividing the total distance an object travels by the total time. |
| instantaneous speed | The speed of an object at one instant of time. |
| velocity | Speed in a given direction. |
| slope | The steepness of a graph line; the ratio of the vertical change (the rise) to the horizontal change (the run). |
| acceleration. | The rate at which velocity changes |