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Force and Motion
Force and Motion Vocabulary
| Term | Definition |
|---|---|
| Reference point | a place that tells where you are; used to compare motion |
| Distance | the amount of space between two points |
| Displacement | the distance between the final and starting position |
| Speed | describes how fast something is moving (s= d/t) |
| Velocity | the speed of an object in a particular direction |
| Acceleration | the change in velocity divided by the time it takes to occur |
| Force | is a push or a pull |
| Inertia | measures an object’s tendency to resist changing its motion |
| Balanced Forces | forces that cancel each other out. If the forces acting on something are balanced its motion does not change. |
| Unbalanced Forces | cause motion and change |
| Friction | force that resists motion between two touching surfaces |
| Gravity | the pull that all matter exerts on other matter |
| Weight | the force of gravity on an object on the planet or moon where the object is |
| Mass | the amount of matter in an object |