1. Motion

2. Motion
The process of changing position.

3. Distance
The total length of your path.

4. Displacement In a straight line.
The distance between your starting position and your final position.
In a straight line.

5. Displacement = 9 m B
9 m A
5 m
4 m
6 m
Distance = 15 m

6. Speed
The rate at which an object moves.

7. Average Speed
The distance an object moves divided by the time it took to move that distance.

8. Instantaneous Speed
An object’s speed at one instant.

9. Constant Speed
Speed that does not change.

10. Velocity
The speed AND DIRECTION of an object’s motion.

11. Acceleration
When an object’s speed or velocity changes, the object is accelerating.

12. Positive Acceleration
When an object is speeding up.

13. Negative Acceleration
When an object is slowing down.