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WorksheetsPDT : Rotational Kinematics
Total questions: 10
Worksheet time: 1hrs 22mins
A gear spins at a rate of 400 revolutions/minute. Which choice is closest to its angular speed in radians/second?
63.67 rad/s
41.9 rad/s
3819.71 rad/s
2594.31rad/s
A flywheel starts from rest, and has an angular acceleration of 4 rad/s2. What will be its angular speed when it has made 2 revolutions?
7.09 rad/s
6.35 rad/s
10.03 rad/s
5.01 rad/s
Two bugs ride a turntable which is rotating at a constant rate of 4 rad/s. Bug A is at a radius of 4 cm, while bug B is at a radius of 8 cm. What is the velocity of bug B?
32 cm/s
2 cm/s
0.30 cm/s
15 cm/s
A 0.12-m-radius grinding wheel takes 5.5 s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration?
9.6 rad/s2
1.6 rad/s2
4.3 rad/s2
6.2 rad/s2
A 0.30m radius automobile tire rotates how revolutions it will make after starting from rest and accelerating at a constant 2.0 rad/s2 over a 5.0 s interval?
4 revolutions
2 revolutions
3 revolutions
5 revolutions
An object completes 1.5 circular orbits in half a minute. What is its approximate angular velocity?
0.052 rad/s
0.521 rad/s
0.314 rad/s
3.14 rad/s
Which of the following is NOT a unit of rotational speed?
Meters per second
Revolutions per second
Revolutions per minute
Rotations per second
If the translational velocity of an object is 3 m/s, and is located a distance of 2 m from the axis of rotation, what is the object's angular velocity?
0.67 rad/s
1.5 rad/s
5 rad/s
6 rad/s
A disc rotating at 300 rev/min is stopped after 2 minutes. Calculate
a) the angular acceleration
b) angular velocity after 30 s
c) the number of revolutions
a) -0.26 rad s-2
b) 23.62 rad s-1
c) 302 revolutions
a) -0.45 rad s-2
b) 20.35 rad s-1
c) 202 revolutions
a) -0.62 rad s-2
b) 36.22 rad s-1
c) 112 revolutions
a) -0.34 rad s-2
b) 13.62 rad s-1
c) 422 revolutions
A fixed point, around which something turns, perpendicular to the rotation.
axis of rotation
diameter
radius
circumference of a circle
