Rotational Kinematics and Dynamics EXAM
Assessment
•
Joel Seymour
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Physics
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7th - 12th Grade
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31 plays
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Medium
Student preview
40 questions
Show answers
1.
Multiple Choice
Which has greater angular speed, a horse near the outside rail of a merry-go-round or a horse near the inside rail?
The inside horse
The outside horse
Neither - they both have the same angular speed
2.
Multiple Choice
0.013 s
0.002 s
76.9 s
6.28 s
3.
Multiple Choice
A gear spins at a rate of 400 revolutions/minute. Which choice is closest to its angular speed in radians/second?
6.67 rad/s
2500 rad/s
41.9 rad/s
20.9 rad/s
4.
Multiple Choice
Two bugs ride a turntable which is rotating at a constant rate of 4 rad/s. Bug B is at a radius of 4 cm, while bug A is at a radius of 8 cm. Which of the following is true?
Bug A has a greater rotational speed.
Bug B has a greater rotational speed.
Bug B has a greater speed.
Bug A has a greater speed.
5.
Multiple Choice
An object moves in a circle at a constant speed. Which of the following is NOT true f the object?
its centripetal acceleration points toward the center of the circle
its tangential speed is constant
its velocity is constant
a centripetal force acts on the object
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