| A | B |
|---|
| any change of position | motion |
| the measure of the force of gravity on an object | weight |
| a push or pull | force |
| a certain place, described in comparrison to another place | position |
| a change in the speed or direction of an object's motion | acceleration |
| the force that keeps objects that are touching each other from sliding past each other easily | friction |
| all the things around you that you can sense and use to describe motion | frame of reference |
| the metric unit of force | newton |
| a measure of an object's change in position during a unit of time | speed |
| motion described in relation to a frame of reference | relative motion |
| a force that pulls objects toward each other | gravity |
