|
 Motion | An object's change in position relative to a reference point |
| Reference Point | Place or object used for comparison to determine if an object is in motion |
| Speed | The distance an object travels in one unit of time (D/T) |
| Velocity | Speed of an object in a particular direction |
| Acceleration | The rate at which velocity changes over time |
| Force | A push or pull exerted on an object in order to change its motion |
| Newton (N) | The SI unit of measurement for force |
| Net Force | The combination of all the forces acting on an object |
| Balanced Force | Equal forces acting on an object in opposite directions resulting in a net force of 0 Newtons and no change in motion |
| Unbalanced Force | Forces producing a net force not 0 Newtons producing a change in motion |
| Friction | A force that opposes motion between two surfaces that are in contact |