ROTATIONAL MOTION

What is the primary reason torque causes precession in a rotating bicycle rim?

• It increases the rotational speed
• It reduces friction
• It aligns with angular momentum
• It acts perpendicular to the angular momentum vector

Which of the following is conserved when no external torque acts?

• Linear velocity
• Angular velocity
• Torque
• Angular momentum

What is the plane of rotation of the bicycle rim during the experiment?

• Horizontal plane
• Inclined plane
• Random plane
• Vertical plane

What is the function of fast rotation in the bicycle rim experiment?

• It reduces tension in strings
• It decreases torque
• It makes the rim lighter
• It increases angular momentum, enhancing stability

How does the mass distribution affect angular momentum in the bicycle rim?

• It reduces angular momentum
• It makes the rim fall faster
• It has no effect
• It increases moment of inertia, thus increasing angular momentum for same angular speed