ROTATIONAL MOTION

In the torque-angular momentum relation, what replaces force in rotational motion?

• Momentum
• Velocity
• Mass
• Torque

What determines the direction of angular momentum of a rotating particle?

• Direction of velocity
• Direction of force
• Clockwise or counterclockwise alone
• Right-hand rule applied to rotation

How is angular momentum related to position and linear momentum vectors?

• It is their dot product
• It is their sum
• It is their difference
• It is their cross product

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

• It increases continuously
• It decreases to zero
• It changes direction randomly
• It remains constant

Which principle explains why the rotating bicycle rim does not fall when one string is released?

• Newton's first law
• Law of inertia
• Conservation of energy
• Precession due to torque acting on angular momentum