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Lesson 2 Chapter 1
Science still...
| Term | Definition |
|---|---|
| Motion | The process of changing positions. |
| Reference Point | The starting point used to describe the motion or the position of an object. |
| Distance | The total length of your path. |
| Displacement | The distance between your initial, or starting, position to your final position. |
| Speed | The distance an object moves divided by the time it took to move that distance. |
| Velocity | The speed and direction of an object's motion. |
| Acceleration | The measure of the change in velocity during a period of time. |
| Force | A push or pull on an object. |
| Contact Force | A push or pull applied by one object to another object that is touching it. |
| Noncontact Force | A force that pushes or pulls an object without touching it. |
| Friction | A contact force that resists the sliding motion between two objects that are touching. |
| Gravity | A noncontact attractive force that exists between all objects that have mass. |
| Balanced Forces | When the net force on an object is 0N, the forces acting on it. |
| Unbalanced Forces | When the net force of an object is not 0N, the forces acting upon the object. |