1. 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 Motion Velocity Friction Acceleration Force

2. ______ is the rate of change in position Motion 1

3. Speed is the rate of change In position Motion 1

4. ________ speed is the total distance divided by The total time Motion 2

5. Average speed is the total distance divided by the total time Motion 2

6. What is an objects change in position relative to a reference point? _________ Motion 3

7. What is an objects change in position relative to a reference point? motion Motion 3

8. Speed that does not vary is called ________ speed Motion 4

9. Speed that does not vary is called Constant speed Motion 4

10. The picture indicates what kind of speed? Motion 5

11. Instantaneous speed Motion 5

12. True or False Two bicycle riders have the same speed. Their velocity must also be the same. Velocity 1

13. False Their directions may be different. Velocity 1

14. Velocity 2 People on Merry-go-rounds change velocity because the _______ changes

15. Velocity 2 People on Merry-go-rounds change velocity because the direction changes

16. Velocity 3 DAILY DOUBLE 1. What is the equation for calculating velocity? 2. What does each variable stand for?

17. Velocity 3 DAILY DOUBLE 1. v = d/t 2. v = velocity (speed) d = distance t = time

18. Amy swam 50 m downstream in 25 seconds. What was her average velocity? Velocity 4

19. Amy swam 50 m downstream in 25 seconds. What was her average velocity? V = d/t = 50 m/ 25 s = 2 m/s

20. If Andy drives his dune buggy at an average velocity of 350 m/s how long would it take him to go 5 km? Velocity 5

21. If Andy drives his dune buggy at an average velocity of 120 km/h how long would it take him to go 5 km? V=d/t so t = d/v Convert km to m 5 km = 5000 m t = 5 km  120 km/h =0.042h = 60 min * 0.042 = 2.5 min

22. Acceleration is the rate at which _____ changes. Acceleration 1

23. Acceleration is the rate at which velocity changes.

24. The units of acceleration are __________ Acceleration 2

25. The units of acceleration are m/s 2 Acceleration 2

26. Acceleration caused by uniform circular motion is called ___________ acceleration. Acceleration 3

27. Acceleration caused by uniform circular motion is called centripetal acceleration.

28. Acceleration 4 A sports car can accelerate from 0 to 60 in 6 seconds. If 60 mi/h is equal to 27 m/s, what is the sports car’s average acceleration?

29. Acceleration 4 A sports car can accelerate from 0 to 60 in seconds. If 60 mi/h is equal to 27 m/s, what is the sports car’s average acceleration? a = v f – v i t 27 – 0 m/s 6 s = 4/5 m/s 2

30. Acceleration 5 If a bicycle has an average acceleration of -0.44 m/s 2 with and initial forward velocity of 8.2 m/s, how long will it take to come to a stop?

31. Acceleration 5 If a bicycle has an average acceleration of -0.44 m/s 2 with and initial forward velocity of 8.2 m/s, how long will it take to come to a stop? t = v f – v i a t = 0 – 8.2 m/s -0.44 m/s 2 = 18.63 s

32. A _______ is a push or a pull Force 1

33. A Force is a push or a pull Force 1

34. Forces that are equal in size, but opposite in direction are called _______ forces Force 2

35. Forces that are equal in size, but opposite in direction are called balanced forces Force 2

36. The _____ force is the sum of all the forces acting on an object. Force 3

37. The net force is the sum of all the forces acting on an object. Force 3

38. Force 4 If the net force is unbalanced, the object will _________ in the direction of the net force.

39. Force 4 If the net force is unbalanced, the object will accelerate in the direction of the net force.

40. Force 5 Calculate the resultant force for the following.

41. Force 5 Calculate the resultant force for the following.

42. ______ _______is a force that opposes motion between two moving objects that are touching. Friction 1

43. Kinetic friction is a force that opposes motion between two moving objects that are touching. Friction 1

44. Friction 2 Which type of friction exerts the smallest opposing force on a moving body?

45. Friction 2 Which type of friction exerts the smallest opposing force on a moving body? Rolling friction

46. Friction 3 Frictional forces always act in what direction?

47. Friction 3 Frictional forces always act in what direction? Opposite the direction of motion

48. Friction 4 A sky diver uses a parachute to float to earth slowly and safely. This is an example of what type of kinetic friction?

49. Friction 4 A sky diver uses a parachute to float to earth slowly and safely. This is an example of what type of kinetic friction? Fluid friction or air resistance

50. Friction 5 If the box is NOT moving down the ramp, what is the force of static friction exerted on the box?

51. Friction 5 If the box is NOT moving down the ramp, what is the force of static friction exerted on the box?