| A | B |
|---|
| force | causes motion |
| work | using a force to move an object |
| inertia | resistance to change in motion |
| motion | change in position or orientation |
| rest | object not changing position is at _ |
| mass | amount of matter in an object |
| acceleration | speeding up, slowing down or changing direction |
| velocity | speed in a given direction |
| balanced force | force that keeps an object's motion the same |
| unbalanced force | force that changes in object's motion |
| gravity | non-contact force that pulls from the center of an object's mass |
| non-contact force | force that acts on an object without touching the objecct |
| friction | force that slows an object's motion |
| direction | straight path an object moves along |
| position | where an object is located in space |
| speed | rate of motion |
| potential energy | stored energy affected by height & mass |
| kinetic energy | energy of motion affected by mass & velocity |
