2. 2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Circular Motion Circular Motion Free Fall Free Fall Newton’s Laws Newton’s Laws Projectile Motion Projectile Motion Misc.

3. “Centripetal” Acceleration means…?

4. Centripetal acceleration means…? “center-seeking”

5. All circular motion has acceleration directed towards…?

6. The center of motion

7. The acceleration of an object in circular motion does not depend on…?

8. mass

9. All objects in circular motion move faster on the edge of the circle or in the middle?

10. The edge

11. The equation for centripetal force is just which equation re- written?

12. Newton’s Second Law

13. This is the only force acting on objects in freefall?

14. Gravity

15. Freefall is the same as floating. T or F.

16. False.

17. Astronauts in space are freefalling constantly. T or F.

18. True

19. Weightlessness is another form of freefall.

20. True.

21. All objects in freefall have the same speed. T or F.

22. It depends on if there is air resistance or not.

23. In 10 words or less, list the three laws of motion.

24. 1st: objects in motion, stay in motion, etc.

25. Inertia is a property of mass. T or F.

26. True.

27. The equation for weight is a rearranged form of Newton’s First Law.

28. No, 2 nd Law.

29. Daily Double

30. Explain Newton’s 2 nd Law in words.

31. A net force on a mass causes and acceleration.

32. The recoil of gun is explained by Newton’s 1 st Law. T or F.

33. F, Newton’s 3 rd Law.

34. The vertical speed of a projectile never changes.

35. False, it is always accelerating.

36. What is the equation for the horizontal component of a projectile?

37. V x = v 0 cosθ

38. The shape of the trajectory of a projectile is a…?

39. Parabola

40. What is the definition of a projectile?

41. Any object that is kicked, shot, or thrown and acted upon by gravity.

42. What is the relationship between vertical velocity and horizontal velocity of a projectile?

43. They are independent of each other

44. Which is bigger: a mile or a kilometer?

45. A kilometer

46. What charge does a proton have?

47. Positive

48. Why is the sky blue?

49. Because of the diffraction of sunlight through the atmosphere.

50. What element do all living things have in common?

51. Carbon

52. What is the difference between speed and velocity?

53. Velocity is speed in a particular direction