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AP®︎ Physics 1: Topic 5.6 Practice Test

Prepare for your quiz, test, or the AP exam with focused practice questions on Topic 5.6 of AP Physics 1 – Newton’s Second Law in Rotational Form.

Questions List

Topic 5.6

Q10

Q11

Q12

Q13

Q14

Question 1 Easy

A uniform wheel of radius

0.30\ \text{m}

turns on a frictionless fixed axle through its center. As shown, force A acts upward, tangent to the rim at the wheel's right edge. Force B acts downward at a point

0.10\ \text{m}

to the right of the axle. Each force has magnitude

6.0\ \text{N}

. The wheel's weight and the force exerted by the axle are also shown.

Which statement about the wheel's angular velocity is correct?

AIt is constant, because the two applied forces exert equal torques on the wheel.

BIt is changing, because the net torque exerted on the wheel is not zero.

CIt is constant, because the net force exerted on the wheel is zero.

DIt is changing, because the net force exerted on the wheel is not zero.

What You’re Being Tested On:

Explore the learning objectives taken directly from the College Board’s AP® Physics 1 Curriculum. Ensure you’re prepared for the exact topics covered on the AP® exam, in-class tests, and quizzes, and gain confidence in your mastery of the material.

Topic 5.6: Newton’s Second Law in Rotational Form

Learning Objective: 5.6.A

Describe the conditions under which a system’s angular velocity changes.

Essential Knowledge: 5.6.A.1

Angular velocity changes when the net torque exerted on the object or system is not equal to zero.

Essential Knowledge: 5.6.A.2

The rate at which the angular velocity of a rigid system changes is directly proportional to the net torque exerted on the rigid system and is in the same direction. The angular acceleration of the rigid system is inversely proportional to the rotational inertia of the rigid system. Relevant equation: $\alpha_{\text{sys}} = \frac{\sum \tau}{I_{\text{sys}}} = \frac{\tau_{\text{net}}}{I_{\text{sys}}}$

Essential Knowledge: 5.6.A.3

To fully describe a rotating rigid system, linear and rotational analyses may need to be performed independently.

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AP®︎ Physics 1: Topic 5.6 Practice Test

Question 1 Easy

What You’re Being Tested On:

Learning Objective 5.6.A: 5.6.A.1, 5.6.A.2, 5.6.A.3