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Chapter 5 vocab
motion vocab
| Term | Definition |
|---|---|
| Motion | An object's change in position relative to a refrence point |
| Speed | The distance traveled divided by an object in a particular direction |
| Acceleration | The rate at which velocity changes over time;an object accelerates if its speed or direction, or both change |
| Force | A push or a pull exerted on an object in order to change the motion of the objects;force has size and direction |
| Newton | The SI unit for force (symbol, N) |
| Net Force | The combination of all of the forces acting of an object |
| Friction | A force that opposes motion between two surfaces that are in contact |
| Gravity | A force of attraction between objects that is due to their masses |
| Weight | A measure of the gravitational force exerted on an object;its value can change with the location of the object in the universe |
| Mass | A measure of the amount of matter in an object |