| A | B |
|---|
| gravitational | the pull of an object towards the center of the earth |
| balanced force | equal force acting on an object in opposite directions |
| reference point | the point at which an object begins to move |
| time | the formula to calculate the speed is distance divided by __ |
| friction | force that one object exerts on another when the two rub against each other |
| velocity | the speed and direction of an object's motion |
| speed | the distance an object travels in one unit of time |
| motion | when one object's distnce from another object is changing |
| contact | when two objects touch each other |
| acceleration | the ate at which velocity changes |
| magnetic | attraction between two objects with opposite poles |
| electrical | the attraction of oppositely charged objects; the repelling of like charged objects |
| unbalanced force | unequal forces acting on an ogject which causes it to move |
