ROTATIONAL MOTION

What is the moment of inertia of a circular disc about an axis perpendicular to its plane and passing through its center?

• M R²
• M R²/2
• M R²/4
• 2 M R²/5

What is the moment of inertia of a thin rod of length L about an axis perpendicular to it and passing through its center?

• M R²
• M L²/3
• M L²/12
• 2 M R²/5

What is the moment of inertia of a thin circular ring about one of its diameters?

• M R²
• M R²/4
• M L²/12
• M R²/2

How many degrees of freedom are involved in rotational motion about a fixed axis?

• Two
• Three
• Four
• One

In rotational dynamics, what replaces force in Newton’s second law?

• Energy
• Momentum
• Velocity
• Torque