ROTATIONAL MOTION

Why do divers tuck their bodies during somersaults?

• To increase air resistance
• To look elegant
• To reduce moment of inertia and increase angular speed
• To decrease speed

What is the moment of inertia of a bicycle wheel mostly due to?

• Hub
• Axle
• Rim and spokes
• Tire pressure

Which factor does NOT affect the moment of inertia?

• Mass distribution
• Axis of rotation
• Color of the body
• Shape

What is the angular analog of mass in rotational motion?

• Angular momentum
• Torque
• Velocity
• Moment of inertia

How is torque related to angular acceleration?

• Inversely proportional
• Unrelated
• Directly proportional via moment of inertia
• Proportional to square