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AP Physics 1 Rotational Motion Test 1 Multiple-Choice questions-choose the best answer. 1. An object starts from rest and accelerates at a constant rate in a circular path. After a certain time t, the object reaches the angular velocity ?. How many revolutions did it make during time t? A. 4?? B. 4?/?t C. ?t/4? D. 4?t 2. A car's tire of radius 0.50 m has an angular displacement = 2t² – 4t + 8. Find the angular velocity of the tire at t = 2.0 s. A. 0 rad/s B. 2 rad/s C. 4 rad/s D. 8 rad/s 3. An object has an initial angular velocity of 5.0 rad/s and undergoes an angular acceleration of 15 rad/s². What is the final angular velocity after 3.0 s? A. 25 rad/s B. 30 rad/s C. 50 rad/s D. 60 rad/s 4. Torque is the rotational analog of which of the following quantities? A. kinetic energy B. linear momentum C. acceleration D. force 5. Two wheels are fixed to each other and are free to rotate about a frictionless axis through their concentric centers. Four forces are exerted tangentially to the wheels. The magnitude of the net torque is: A. zero B. FR C. 2 FR D. 4 FR 6. In the diagram below, two boxes with masses, 3 kg and 7 kg are attached to the ends of a 1 m long lever. At which of the following points should the lever be placed on a fulcrum in order to keep the lever at equilibrium? A. A or E B. B C. C D. D

          AP Physics 1 Rotational Motion Test 1
Multiple-Choice questions-choose the best answer.
1. An object starts from rest and accelerates at a constant rate in a circular path. After a certain time t, the object reaches the angular velocity ?. How many revolutions did it make during time t?
A. 4??
B. 4?/?t
C. ?t/4?
D. 4?t
2. A car's tire of radius 0.50 m has an angular displacement = 2t² – 4t + 8. Find the angular velocity of the tire at t = 2.0 s.
A. 0 rad/s
B. 2 rad/s
C. 4 rad/s
D. 8 rad/s
3. An object has an initial angular velocity of 5.0 rad/s and undergoes an angular acceleration of 15 rad/s². What is the final angular velocity after 3.0 s?
A. 25 rad/s
B. 30 rad/s
C. 50 rad/s
D. 60 rad/s
4. Torque is the rotational analog of which of the following quantities?
A. kinetic energy
B. linear momentum
C. acceleration
D. force
5. Two wheels are fixed to each other and are free to rotate about a frictionless axis through their concentric centers. Four forces are exerted tangentially to the wheels. The magnitude of the net torque is:
A. zero
B. FR
C. 2 FR
D. 4 FR
6. In the diagram below, two boxes with masses, 3 kg and 7 kg are attached to the ends of a 1 m long lever. At which of the following points should the lever be placed on a fulcrum in order to keep the lever at equilibrium?
A. A or E
B. B
C. C
D. D

AP Physics 1 Rotational Motion Test 1
Multiple-Choice questions-choose the best answer.
1. An object starts from rest and accelerates at a constant rate in a circular path. After a certain time t, the object reaches the angular velocity ?. How many revolutions did it make during time t?
A. 4??
B. 4?/?t
C. ?t/4?
D. 4?t
2. A car's tire of radius 0.50 m has an angular displacement = 2t² – 4t + 8. Find the angular velocity of the tire at t = 2.0 s.
A. 0 rad/s
B. 2 rad/s
C. 4 rad/s
D. 8 rad/s
3. An object has an initial angular velocity of 5.0 rad/s and undergoes an angular acceleration of 15 rad/s². What is the final angular velocity after 3.0 s?
A. 25 rad/s
B. 30 rad/s
C. 50 rad/s
D. 60 rad/s
4. Torque is the rotational analog of which of the following quantities?
A. kinetic energy
B. linear momentum
C. acceleration
D. force
5. Two wheels are fixed to each other and are free to rotate about a frictionless axis through their concentric centers. Four forces are exerted tangentially to the wheels. The magnitude of the net torque is:
A. zero
B. FR
C. 2 FR
D. 4 FR
6. In the diagram below, two boxes with masses, 3 kg and 7 kg are attached to the ends of a 1 m long lever. At which of the following points should the lever be placed on a fulcrum in order to keep the lever at equilibrium?
A. A or E
B. B
C. C
D. D

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