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77 Multiple choice questions

  1. radial
  2. centrifugal effect is a center fleeing tendency of an object to fly away from center, centripetal is the opposite. It is a center seeking force. example of centrifugal effect is in a car when tangential inertia and a centripetal force are acting upon an object it creates the centrifugal effect in which if you turn left the passenger will scoot towards the door. An example of centripetal force is when you spin a can on a string that enforces it to stay in circular motion.
  3. the type of velocity found by dividing theta by seconds
  4. omega=theta/t
    v=omega(r)
  5. 360
  6. because 6.28 radians = 360 degrees = number of degrees in a circle.
  7. a device that measures acceleration
  8. the coefficient resulting from the circumference of a circle being divided by its diameter
  9. tangent
  10. less than
  11. > diameter in
  12. 6.28
  13. -timing not precise
    -didn't find the exact point at which the hypotenuse reaches the other leg of the triangle with the laser
  14. a merry-go-round
  15. rotation
  16. long play record with 33.3rpm
  17. one earth revolution equal to 365.25 days
  18. (o-e)/e (100)
  19. inward
  20. rotation is the turning on an internal axis while revolution is turning on an external axis.
  21. theta
  22. the have the same
  23. an apparent center fleeing effect
  24. January 3
  25. tangent
  26. north/south pole, internal, Sun, external
  27. .105 rad/s
  28. v=√rg
  29. rotation=revolution
  30. both rotation and revolution
  31. 1mile
  32. one earth rotation equal to 24 hours or 86,400 seconds
  33. the pig overcomes air friction by flapping its wings. this creates a centripetal force on the pig which in turn counters friction
  34. mg
  35. rotation and revolution
  36. Earth Year (365.25days)
  37. throwing a football (the spiral)
  38. the outside horse
  39. T
  40. the direction of gravitational pull of sun on the earth
  41. the direction of a planet's momentum while in orbit
  42. a)2xa
    b)4xa
    c)8xa
  43. time taken for Moon to orbit Earth (29.5days)
  44. Merry-Go-Round
  45. direct
  46. road pushes tire
  47. 360 degrees of 6.28 radians
  48. angle measure equal to length of radius around the circumference of a circle (57.3 degrees)
  49. d)all of these
  50. The direction of the net force is in a radial direction towards the center/centripetal
  51. a straight line around which circular motion takes place
  52. the wide rim
  53. omega
  54. centripetal force and tangential inertia
  55. the Earth
  56. a device that measures acceleration
  57. spinning with axis outside of a system
  58. spinning with axis inside a system
  59. a radian is an angle measure equal to a radius around a circle
  60. outward
  61. greater than
  62. July 3
  63. mv^2/radialdistance
  64. year
  65. Earth Day (24hours)
  66. omega= theta/seconds or rad/seconds
  67. a) outside
  68. acronym for revolutions per minute (equal to .105 rad/s)
  69. v=d/t=2(pi)(r)/t
  70. a true center seeking force
  71. half of a diameter
  72. all of these
  73. the distance across a circle
  74. d)78rpm
  75. 57.3
  76. I used the tangent equation and derived for theta. I used the theta that I found and plugged it into the sin equation to find the opposite side, then I used the theory of similar triangles and lasers to find the radius.
  77. 3.141592654