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Week 4 Force/Motion
| Term | Definition |
|---|---|
| Friction | A force that opposes the motion of a body across a surface or through a gas or liquid. |
| Gravity | A force that exists between any two objects that have mass. |
| Speed | Distance traveled per unit of time. |
| Velocity | The speed and direction of moving objects. |
| Acceleration | A change in the velocity (speed, direction, or both) of a body. |
| Deceleration | slowing down |
| Scale | Description of the relative size or amount of 2 or more things; a device used for measuring weight. |
| Resist | To push or act against |
| Kilogram | metric unit for describing mass |
| Attract | To pull towards. |