ROTATIONAL MOTION Quiz

• It has no effect
• It stabilizes the rim
• It reduces rotation speed
• Higher CM increases lever arm, increasing torque and precession rate

• It measures speed
• It calculates mass
• It finds temperature
• It predicts the direction of angular momentum and torque for comparison with observation

• Friction holds it upright
• It defies gravity
• Its shape prevents tipping
• The gravitational torque causes precession instead of toppling

• It decreases
• It increases
• It becomes zero
• It remains constant, but angular speed increases

• Forces always destroy angular momentum
• Conservation only applies without any forces
• Forces increase angular momentum
• Internal forces produce no net torque, so total angular momentum remains unchanged