1. Resolve the vector into x & y components 40.0 m/s at 45 o SoW

2. Chapter 3 Describing Motion

3. Motion

4. The act of changing location or position

5. Motion Diagram

6. A tool for the study of motion that uses a series of images to show position at equal time intervals

7. Operational Definition

8. Defines a concept in terms of the procedure or operation used

9. Coordinate System

10. A system used to describe motion indicating a zero point, direction, and change of a variable

11. Scalar Quantity

12. A quantity that has only magnitude

13. Vector Quantity

14. A quantity that has both magnitude and direction

15. Distance

16. A scalar quantity equal to the length of one or many displacement vector (How far something moves)

17. Displacement

18. The vector quantity defining distance and direction between two positions (How far something is from a starting position)

19. The change in displacement (  d) is the difference between the starting position (d i ) and the final position (d f )

20. Starting position: d i or d 0 Final position: d f or d 1

21. Change in displacement:  d = d 1 - d 0 or  d = d f - d i

22. Time Interval

23. The differences between two occurrences of two clock readings

24. Speed

25. The change in distance per unit time

26. Average Speed

27. The ratio of the total distance traveled over the total time interval

28. Velocity

29. The change in displacement per unit time

30. Average Velocity (v)

31. The ratio of the total displacement over the total time interval

32. v =  d/  t v = d 1 - d 0  t 1 - t 0

33. Instantaneous Velocity

34. The speed & direction at a particular instant

35. Acceleration

36. The change in velocity per unit time

37. Average Acceleration

38. a =  v/  t a = v 1 - v 0  t 1 - t 0

39. Describe similarities & differences between: 1) distance & displacement 2) speed & velocity

40. Write Formulas For: Displacement Average velocity Average acceleration

41. Graphing Data

42. 1 st Order: y = 2x

44. 2 nd Order Curve Y = x 2

46. 3 rd Order Curve y = x 3

48. Inverse Curve y = 1/x

50. A car travels 180 km in 30.0 minutes. Calculate its speed.