Physics Principles and Problems 2009

Section 6.2 : Circular Motion

Self-Check Quizzes

1
Acceleration is the change in _____ and speed.
A)force
B)distance
C)motion
D)velocity
2
Centripetal acceleration always points to the _____ of the circle.
A)back
B)center
C)front
D)outer edge
3
Which of these is a nonexistent force?
A)centrifugal
B)centripetal
C)friction
D)gravity
4
Which is represented by the equation Fnet = mac ?
A)Newton's first law of motion
B)Newton's first law of circular motion
C)Newton's second law of motion
D)Newton's second law of circular motion
5
A carnival ride has a 3.0-m radius and rotates once every 1.7 s. Find the centripetal acceleration of a rider.
A)11 m/s2
B)41 m/s2
C)82 m/s2
D)98 m/s2
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