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8 CK Force & Motion
Force & Motion CK 8 - COMPLETE
| Term | Definition |
|---|---|
| Physics | a major science dealing with the fundamental constituents of the universe, the forces they exert on one another, and the results produced by these forces |
| Force | a push or pull on an object or substance that may or may not produce a change |
| Speed | the rate of change in the position of an object or how fast an object is moving |
| Velocity | speed with direction of movement specified or the rate at which an object changes its position |
| Scalar quantity | a quantity that describes magnitude |
| Net force | all the forces on an object added together |
| Unbalanced forces | when there is a net force other than zero – movement takes place |
| Balanced forces | when the net force is zero – no movement takes place |
| Centripetal Force | a center seeking force that causes an object to move in a circular path |
| Displacement | a vector quantity that refers to how far out of place an object ends up; it is the object's change in position |
| Distance | scalar quantity which refers to how much ground an object has covered during its motion |
| Vector quantity | a quantity that tells both magnitude and direction |