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Forces& Motion Study
| Question | Answer |
|---|---|
| position | location of an object |
| motion | an object's position and how that position changesover time |
| speed | distance/time - distance over time |
| velocity | distance/time+direction - distance over time plus direction |
| compass | measures direction |
| tape measure | measures distance |
| stopwatch | measures time |
| force | a push or a pull on an object |
| balanced forces | no movement |
| unbalanced forces | movement |
| gravity, friction, magnetism, electricity | examples of forces |
| gravity | force that pulls all things toward the center of the Earth |
| energy | the capacity to do work |
| heat, light, sound, electrical, chemical, mechanical | forms of energy |
| machine | a tool that replaces human work |
| inertia | an object in motion will stay in motion or an object at rest will stay at rest, unless acted upon by an outside force |
| friction | a force. It stops motion. |