Angular Momentum and Conservation Quiz

What is the relationship between angular acceleration and torque?

• Angular acceleration is the sum of torque and moment of inertia.

• Angular acceleration is the ratio of net torque to moment of inertia.

• Angular acceleration is independent of torque.

• Angular acceleration is the product of torque and moment of inertia.

Which of the following units is used for angular momentum?

• Meters per second squared

• Kilograms meters squared per second

• Kilograms per meter per second

• Newton meters

What does the conservation of angular momentum imply?

• Angular momentum can be created or destroyed.

• Angular momentum remains constant if no external torque acts.

• Angular momentum is independent of external forces.

• Angular momentum is always zero.

In the carousel problem, what happens to the angular velocity when a ball sticks to the rotating platform?

• The angular velocity becomes zero.

• The angular velocity remains the same.

• The angular velocity decreases.

• The angular velocity increases.

What is a perfectly inelastic angular collision?

• A collision where objects stick together and move with the same angular velocity.

• A collision where objects move independently after collision.

• A collision where objects stick together and move with different angular velocities.

• A collision where objects bounce off each other.

How is the moment of inertia of a point mass calculated in the carousel problem?

• It is the mass times the radius squared.

• It is the mass divided by the radius squared.

• It is the mass times the radius.

• It is the mass divided by the radius.

In the variant of the carousel problem, what is the relationship between linear and angular velocity?

• Linear velocity is the product of angular velocity and radius.

• Linear velocity is the sum of angular velocity and radius.

• Linear velocity is the ratio of angular velocity to radius.

• Linear velocity is independent of angular velocity.

What happens to the radius in the equations when solving for final velocity in the carousel problem?

• The radius is multiplied by the mass.

• The radius is divided by the mass.

• The radius is squared and added to the equation.

• The radius cancels out from the equation.

How do you find the linear velocity from the final angular velocity?

• Add the angular velocity to the radius.

• Divide the angular velocity by the radius.

• Multiply the angular velocity by the radius.

• Subtract the angular velocity from the radius.

What is the key concept in the variant of the carousel problem?

• The radius is always doubled.

• The mass of the object is irrelevant.

• The linear velocity is derived from the final angular velocity.

• The initial angular velocity is always zero.