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Forces & Motion
Chapter 1 Forces & Motion Vocabulary
| Term | Definition |
|---|---|
| Position | an object's location |
| Motion | a change in the position of an object |
| Speed | the rate at which, or how fast, an object changes its position |
| Constant Speed | speed that is steady, or stays the same |
| Variable Speed | speed that changes |
| Force | a push or a pull |
| Friction | a contact force that opposes the motion of an object; can cause a moving object to slow down or to stop |
| Balanced Forces | forces that work together and make no change in motion |
| Unbalanced Forces | forces that cause an object at rest to move; can change the speed or direction of a moving object |
| Magnetism | a noncontact force that pulls on, or attracts, metal objects containing iron |