| Term | Definition |
|---|
| force | pus or pull |
| newtons | force measured in |
| net force | combination of all forces acting on an object |
| unbalanced forces | cause object to start, sopt or change direction |
| balanced forces | do not change objects motion |
| friction | force that two surfaces exert on each other when they rub on each other |
| strength of friction depends on what two factors? | how hard surfaces push together, type of surfaces |
| static friction | objects are not moving |
| sliding friction | solid surfaces rolling over each other |
| rolling friction | object rolls over a surface |
| fluid friction | object moves through liquid or gas |
| pull of gravity on an object | 9.8 m/s* |
| terminal velocity | greatest velocity reached |
| gravity | force that pulls objects toward each other |
| strength of gravity depends on what two factors | mass and distance |
| mass | amount of matter in an object |
| weight | force of gravity on an object |
| friction is measured in | newtons |
| gravity is measured in | newtons |
| free fall | object falling |
| air resistance | fluid friction that occurs when a object is falling throught the air |
| projectile | an object thrown |
Combine with other sets
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