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Chapter 1- Motion
Term | Definition |
---|---|
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 object 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. |