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of 77 available terms

### 77 True/False questions

1. what is the greek letter used to represent angular velocitytheta

2. what type of circular motion does rpm apply toboth rotation and revolution

3. what equations can be us to caluclate angular velocityomega= theta/seconds or rad/seconds

4. provide a natural example of rotationMerry-Go-Round

5. tangentthe direction of a planet's momentum while in orbit

7. equation for theoretical speed of the pigv=d/t=2(pi)(r)/t

8. how many degrees are in a radian360

10. centripetalthe direction of gravitational pull of sun on the earth

11. accelerometera device that measures acceleration

12. T or F
we only see one side of the moon
v=d/t=2(pi)(r)/t

13. how would relative simulated gravity of a rotating space station change if
b)it had twice the angular velocity
a)2xa
b)4xa
c)8xa

14. revolutionspinning with axis inside a system

15. provide a man-made example of rotationEarth Day (24hours)

16. 1rpm=acronym for revolutions per minute (equal to .105 rad/s)

17. what is the direction of a can's inertia that is whirled in a circle by a stringradial

19. what proportionality exists between angular velocity x radius and linear velocitydirect

20. what day are we furthest from the sunJanuary 3

21. what is an accelerometera radian is an angle measure equal to a radius around a circle

22. list sources of error for pig lab-timing not precise
-didn't find the exact point at which the hypotenuse reaches the other leg of the triangle with the laser

23. how did the pig overcome air frictionthe pig overcomes air friction by flapping its wings. this creates a centripetal force on the pig which in turn counters friction

24. what is the direction of a centripetal forceinward

25. radialangle measure equal to length of radius around the circumference of a circle (57.3 degrees)

26. what type(s) of circular motion does a carousel horse 2m from the axis experienceboth rotation and revolution

27. what type of circular motion does a person stand on Earth's north pole experienceyear

28. which of these statements is true
d) all of these
d)all of these

29. what is the greek letter used to represent degrees or radiansinward

30. what is pie nine places past decimal3.141592654

31. centrifugalan apparent center fleeing effect

32. what techniques for measuring r and theta would you recommend for best resultstheta

33. piacronym for revolutions per minute (equal to .105 rad/s)

34. equation for computing the speed of the pigJuly 3

35. axishalf of a diameter

36. how many radians are in a circle6.28

37. how are the wheels of a railroad car designed in order for them to turn at different speeds> diameter in

38. what is the direction of Earth's inertia as it travels around the Suntangent

39. what day are we closest to the sunJuly 3

40. how many degrees are in a circle360

41. which has a great angular velocity, a horse near the outside of a carousel or the one near the insidethe have the same

42. what do you conclude about the direction of the net force that keeps the flying pig in uniform circular motioninward

43. which carousel horse has greater centripetal force
a) outside
b) inside
c) outside=inside
d)78rpm

44. which has the greater linear velocity, a horse near the outside of a carousel or one near the insidethe have the same

45. moonthone earth revolution equal to 365.25 days

46. which of the following is a unit of angular velocity
a) degrees/second
c) rpm
d) all of these
e) none of these
all of these

47. how does rotation differ from revolution(o-e)/e (100)

48. earth rotates and revolves through space. earth rotates about the ______, which is an _______ axis. Earth revolves about the ______, which is an ________ axis.north/south pole, internal, Sun, external

49. angulara merry-go-round

50. LPlong play record with 33.3rpm

51. equation used to calculate the omega and linear velocity of earth's rotationomega=theta/t
v=omega(r)

52. what is the direction of a centrifugal effectinward

53. which record has the greatest angular velocity
a) 16rpm
b) 33.3 rpm
c) 45rpm
d) 78rpm
a) outside

54. what is a radianthe direction of gravitational pull of sun on the earth

55. what are all motion calculations relative toa device that measures acceleration

56. 1.61km=mg

57. percent difference equationspinning with axis outside of a system

58. what causes the centrifugal effectan apparent center fleeing effect

59. circle360 degrees of 6.28 radians

60. provide a man-made example of revolutionMerry-Go-Round

61. what is the direction of the gravitational forces between Earth and the Sunradial

62. compare and contrast centripetal force and centrifugal effect and supply examples of eachcentrifugal 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.

63. rotationspinning with axis inside a system

65. radianangle measure equal to length of radius around the circumference of a circle (57.3 degrees)

66. what is true about our Moon's circular motion
a) rotation>revolution
b) rotation<revolution
c) rotation=revolution
rotation=revolution

67. for uniform circular motion the centripetal force will always be _______ the tension in the stringgreater than

68. Tx=mg

69. why are radians used in circular motion calculationsbecause 6.28 radians = 360 degrees = number of degrees in a circle.

70. which type of circular motion for the earth is known as a revolutionMerry-Go-Round

71. diameterthe distance across a circle

72. provide a natural example of revolutionEarth Day (24hours)

73. which end of a tapered cup rolls faster when it completes a circleroad pushes tire

74. yearone earth revolution equal to 365.25 days

75. what supplies the centripetal force when a car turns in a circleinward

76. for circular motion the tension will always be _______ the weightgreater than

77. carousel360 degrees of 6.28 radians