1. Forces and Motion

2. Motion

3. Definition An event that involves the change in position or location of something.

4. Motion is Relative Relative- Motion is described compared to a reference point

5. Examples of Motion

6. Speed

7. Definition Speed is a comparison of time and distance. D ST

8. Speed S = D / T – Cover the “S” in your speed triangle D = S x T – Cover the “D” in your speed triangle T = D / S – Cover the “T” in your speed triangle

9. Types of Speed Average speed- An average of different speeds traveled over a certain amount of time. Constant Speed- When an object travels at the same speed at all points during it’s motion.

10. Speed Speed is always written in terms of units of distance, divided by units of time. Examples: Miles/Hours Feet/Second Kilometers/Hour

11. Velocity

12. Definition Velocity is a combination of speed AND direction.

13. Examples of Velocity

14. Acceleration

15. Definition A change in velocity – Speeding up Positive acceleration – Slowing down Negative acceleration Deceleration – Changing direction

16. Formula for Acceleration (Final velocity – Initial velocity) Time = Acceleration

17. Examples of Acceleration A skater increases her velocity from 2.0 m/s to 10.0 m/s in 3.0 seconds. What is the skater’s acceleration?

18. Examples of Acceleration

19. Motion Graphs