ROTATIONAL MOTION

On what factors does the moment of inertia of a body depend?

• Only on total mass
• Only on shape
• Only on speed
• Mass and its distribution relative to the axis of rotation

What is moment of inertia analogous to in linear motion?

• Force
• Velocity
• Acceleration
• Mass

How does a diver increase rotational speed during a dive?

• By extending arms and legs
• By increasing body mass
• By reducing speed
• By pulling arms and legs closer to the body

What happens to the total angular momentum of a system if no external torque acts on it?

• It decreases continuously
• It becomes zero
• It increases rapidly
• It remains constant

How is the angular momentum of a particle defined?

• As mass times velocity
• As force times distance
• As energy divided by time
• As the cross product of position and linear momentum vectors