ROTATIONAL MOTION

What is the role of the axle in the bicycle rim experiment?

• It reduces friction
• It increases mass
• It prevents rotation
• It aligns the axis of rotation and supports the strings

How does the angular momentum of a system change if external torque is applied?

• It remains constant
• It decreases exponentially
• It oscillates
• It changes at a rate equal to the applied torque

What is the outcome of the cross product v × p for a moving particle?

• Equal to angular momentum
• Equal to torque
• Undefined
• Zero

What is the significance of the origin in calculating angular momentum?

• It has no significance
• It only affects direction
• It fixes the mass
• Angular momentum depends on the choice of origin

What happens to the precession frequency if the angular momentum of the rim is increased?

• It increases
• It remains unchanged
• It becomes zero
• It decreases