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2nd: Push & Pull
| Term | Definition |
|---|---|
| motion | a change in an objects position over time |
| pull | using force to move something towards you or in the same direction you are moving |
| strength | A measure of the ability of material to resist a force that tends to pull it apart |
| direction | the course or path that something is moving along |
| gravity | the force that attracts all objects toward each other |
| friction | the rubbing of one thing against another |