Rotational Dynamics AP Physics 1 REview

What is the rotational equivalent of inertial mass?

• Angular velocity

• Rotational inertia

• Torque

• Angular displacement

Which of the following is the rotational equivalent of linear momentum?

• Torque

• Angular displacement

• Angular momentum

• Rotational inertia

What type of quantity is rotational kinetic energy?

• Vector

• Scalar

• Tensor

• Matrix

What is the equation for the work done by a torque on a rigid system?

• W = τ Δt

• W = τ Δθ

• W = τ Δx

• W = τ Δv

In the equation L = I ω, what does I represent?

• Angular velocity

• Torque

• Rotational inertia

• Angular displacement

What is the direction used to indicate angular momentum in AP Physics 1?

• Upward and downward

• Left and right

• Clockwise and counterclockwise

• Forward and backward

What is the unit for angular momentum in terms of mass (m), velocity (v), and radius (r)?

• kg · m²/s

• kg · m/s²

• kg · m/s

• kg · m²/s²

According to Newton's Second Law, how can the rotational form be expressed in terms of angular momentum?

What remains constant if the net force acting on a system equals zero?

• Total linear momentum

• Total energy

• Total mass

• Total velocity

What happens to an ice skater's rotational inertia when they bring their arms in while spinning?

• It decreases

• It increases

• It remains constant

• It doubles