Lesson 18: Velocity and Acceleration Definitions
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10 terms
Terms | Definitions |
|---|---|
 Mechanics | The study of the effects of force on an object, and movement caused by that force. |
| Kinematics | The study of motion that focuses on how objects move. |
| Dynamics | The study of motion that focuses on why objects move. |
| Frame of reference | A way to relate the motion of an object, or objects, in relation to a fixed point. |
| Displacement | The movement of an object from one place to another. In physics, it refers to the distance between an object's starting location, and its final, or end location. |
| Speed | The rate at which an object changes position |
| Average speed | The total distance travelled divided by the total time spent travelling. |
| Velocity | The rate at which an object changes position, and the direction that it moves. |
| Magnitude | The size of a quantity, how big it is. |
| Vector | Expresses quantity, and direction. |
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