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Forces & motions
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| Question | Answer |
|---|---|
| a force between two surfaces | friction |
| a force that pulls objects together | gravitation |
| any push on an object | force |
| the distance an object travels | speed |
| any change in an objects direction or speed | acceleration |
| an object place or position | position |
| a substance, such as oil that coats | lubricant |
| the speed and direction of an object | velocity |
| a change in the position | motion |
| the tendency of a motionless object | inertia |