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75 Matching questions

  1. what supplies the centripetal force when a car turns in a circle
  2. what is the direction of the gravitational forces between Earth and the Sun
  3. how does rotation differ from revolution
  4. which end of a tapered cup rolls faster when it completes a circle
  5. provide a natural example of rotation
  6. day
  7. what do you conclude about the direction of the net force that keeps the flying pig in uniform circular motion
  8. how did the pig overcome air friction
  9. earth rotates and revolves through space. earth rotates about the ______, which is an _______ axis. Earth revolves about the ______, which is an ________ axis.
  10. how would relative simulated gravity of a rotating space station change if
    a)it had twice the radius
    b)it had twice the angular velocity
    C)it had twice the radius and twice the angular velocity
  11. pi
  12. radian
  13. which of the following is a unit of angular velocity
    a) degrees/second
    b) rad/second
    c) rpm
    d) all of these
    e) none of these
  14. revolution
  15. why are radians used in circular motion calculations
  16. how many degrees are in a circle
  17. how many radians are in a circle
  18. what type of circular motion does rpm apply to
  19. what day are we closest to the sun
  20. what equations can be us to caluclate angular velocity
  21. what is pie nine places past decimal
  22. which of these statements is true
    a) 360degrees=6.28radians
    b) 1rpm=.105rad/s
    c) 1radian=57.3degrees
    d) all of these
  23. for uniform circular motion the centripetal force will always be _______ the tension in the string
  24. LP
  25. percent difference equation
  26. what is the direction of Earth's inertia as it travels around the Sun
  27. rotation
  28. list sources of error for pig lab
  29. provide a natural example of revolution
  30. equation for theoretical speed of the pig
  31. provide a man-made example of revolution
  32. diameter
  33. year
  34. 1rpm=
  35. circle
  36. equation for computing the speed of the pig
  37. what is the greek letter used to represent angular velocity
  38. radius
  39. how many degrees are in a radian
  40. rpm
  41. Ty=
  42. tangent
  43. what day are we furthest from the sun
  44. provide a man-made example of rotation
  45. Tx=
  46. what is a radian
  47. what are all motion calculations relative to
  48. what is the direction of a centrifugal effect
  49. axis
  50. which has a great angular velocity, a horse near the outside of a carousel or the one near the inside
  51. T or F
    we only see one side of the moon
  52. what is true about our Moon's circular motion
    a) rotation>revolution
    b) rotation<revolution
    c) rotation=revolution
  53. angular
  54. carousel
  55. equation used to calculate the omega and linear velocity of earth's rotation
  56. what techniques for measuring r and theta would you recommend for best results
  57. how are the wheels of a railroad car designed in order for them to turn at different speeds
  58. compare and contrast centripetal force and centrifugal effect and supply examples of each
  59. radial
  60. what type(s) of circular motion does a carousel horse 2m from the axis experience
  61. which has the greater linear velocity, a horse near the outside of a carousel or one near the inside
  62. centripetal
  63. what proportionality exists between angular velocity x radius and linear velocity
  64. what is the greek letter used to represent degrees or radians
  65. what type of circular motion does a person stand on Earth's north pole experience
  66. which carousel horse has greater centripetal force
    a) outside
    b) inside
    c) outside=inside
  67. what causes the centrifugal effect
  68. which type of circular motion for the earth is known as a revolution
  69. accelerometer
  70. what is the direction of a centripetal force
  71. which record has the greatest angular velocity
    a) 16rpm
    b) 33.3 rpm
    c) 45rpm
    d) 78rpm
  72. centrifugal
  73. 1.61km=
  74. moonth
  75. for circular motion the tension will always be _______ the weight
  1. a 1mile
  2. b the type of velocity found by dividing theta by seconds
  3. c a merry-go-round
  4. d v=√rg
  5. e v=d/t=2(pi)(r)/t
  6. f radial
  7. g rotation and revolution
  8. h the outside horse
  9. i year
  10. j omega= theta/seconds or rad/seconds
  11. k The direction of the net force is in a radial direction towards the center/centripetal
  12. l both rotation and revolution
  13. m 3.141592654
  14. n centripetal force and tangential inertia
  15. o T
  16. p 360
  17. q the distance across a circle
  18. r spinning with axis inside a system
  19. s Earth Year (365.25days)
  20. t mg
  21. u omega=theta/t
    v=omega(r)
  22. v 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.
  23. w .105 rad/s
  24. x time taken for Moon to orbit Earth (29.5days)
  25. y outward
  26. z the direction of a planet's momentum while in orbit
  27. aa a radian is an angle measure equal to a radius around a circle
  28. ab direct
  29. ac -timing not precise
    -didn't find the exact point at which the hypotenuse reaches the other leg of the triangle with the laser
  30. ad > diameter in
  31. ae 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.
  32. af 6.28
  33. ag a device that measures acceleration
  34. ah the wide rim
  35. ai the have the same
  36. aj half of a diameter
  37. ak 57.3
  38. al an apparent center fleeing effect
  39. am all of these
  40. an angle measure equal to length of radius around the circumference of a circle (57.3 degrees)
  41. ao road pushes tire
  42. ap throwing a football (the spiral)
  43. aq tangent
  44. ar less than
  45. as Merry-Go-Round
  46. at omega
  47. au the direction of gravitational pull of sun on the earth
  48. av acronym for revolutions per minute (equal to .105 rad/s)
  49. aw 360 degrees of 6.28 radians
  50. ax d)all of these
  51. ay January 3
  52. az d)78rpm
  53. ba (o-e)/e (100)
  54. bb a straight line around which circular motion takes place
  55. bc theta
  56. bd the coefficient resulting from the circumference of a circle being divided by its diameter
  57. be rotation=revolution
  58. bf a)2xa
    b)4xa
    c)8xa
  59. bg Earth Day (24hours)
  60. bh greater than
  61. bi rotation
  62. bj one earth rotation equal to 24 hours or 86,400 seconds
  63. bk mv^2/radialdistance
  64. bl the pig overcomes air friction by flapping its wings. this creates a centripetal force on the pig which in turn counters friction
  65. bm the Earth
  66. bn spinning with axis outside of a system
  67. bo a true center seeking force
  68. bp a) outside
  69. bq one earth revolution equal to 365.25 days
  70. br rotation is the turning on an internal axis while revolution is turning on an external axis.
  71. bs because 6.28 radians = 360 degrees = number of degrees in a circle.
  72. bt July 3
  73. bu long play record with 33.3rpm
  74. bv inward
  75. bw north/south pole, internal, Sun, external