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6 Science Kuhn c1
6 Science Kuhn chapter 1
| Term | Definition |
|---|---|
| speed | rate of how fast or slow something is moving |
| velocity | speed and direction of an object |
| acceleration | change in velocity |
| force | push or pull one object exerts on another |
| gravity | force or attraction on or near the Earth |
| balanced forces | forces equal in strength pulling against each other |
| net forces | force resulting in unbalanced forces acting on each other |
| inertia | property of matter that resists change in velocity |
| kinetic energy | energy of motion |
| potential energy | energy due to an objects condition or position |
| 1st law | object at rest stays at rest, an object in motion stays in motion |
| momentum | mass multiplied by velocity |
| 2nd law | F=MA |
| 3rd | For every action there is an equal and opposite reaction |
| motion | action of moving or changing position |
| mass | measure of a body's resistance to change in velocity |
| weight | force that gravity puts on an object |
| joules | unit used to measure energy |