1. Representing Motion Chapter 2

2. What is motion? Motion – change in position

3. Motion diagram – motion represented in diagram form. 1s

4. 1s 2s

5. 1s 2s 3s

6. 1s 2s 3s 4s

7. 1s 2s 3s 4s 5s

8. 1s 2s 3s 4s 5s 6s

9. Particle Diagram – object represented as a 1s 2s 3s 4s 5s 6s

10. This man is walking at a steady, constant speed. Every second he is moving the same distance. 1s 2s 3s 4s 5s 6s

11. This man is walking at a steady, constant speed.

12. Answer these questions in your notebook. Particle diagrams only have dots. 1. What would the particle diagram look like if the man was speeding up? 2. What would the particle diagram look like if the man was slowing down?

13. Group roles - Come up with a name for your group 1.Group leader – youngest person in the group - assigns group roles, directs activities 1.Scribe - Record’s group results 2.Presenter – Presents group results 3.Motivator – Keeps group on-task

14. 1s

15. 1s 2s

16. 1s 2s 3s

18. 1s 2s 3s 4s

20. 1s 2s 3s 4s 5s

21. Speeding up 1s 2s 3s 4s 5s 6s

22. Speeding up

23. Slowing Down 1s 2s 3s 4s 5s 6s

24. Slowing Down

25. Constant speed

26. Acceleration – Changing speed

27. What if we need to show distance and direction? Coordinate system -10m -5m 0 5m 10m 15m The man walked 15m to the right or 5m to the left.

28. Scalar - magnitude only Vector - magnitude and direction

29. Try this: Are the following scalar or vector quantities? 1.5m 2.30 m/s, East 3.20 ◦ C 4.256 bytes 5.4000 Calories 6.5 miles, North

30. 1.Scalar 2.Vector 3.Scalar 4.Scalar 5.Scalar 6.Vector

31. Distance – Scalar quantity – how much ground was covered Displacement – Vector quantity – overall change in position

32. Try this: Find the distance and displacement.

35. Try this: 1.What is the displacement of the cross-country team if they begin at the school, run 10 miles and finish back at the school? 2. What is the distance and the displacement of the race car drivers in the Indy 500?

36. Time interval - ∆t = t f – t i = 6s – 3s = 3s 1s 2s 3s 4s 5s 6s t i =3s t f =6s