ROTATIONAL MOTION

Which of the following is NOT a factor in calculating moment of inertia?

• Mass of the body
• External torque applied
• Distance from axis
• Axis orientation

How does the moment of inertia of a body change if it expands uniformly while rotating?

• It decreases
• It remains the same
• It increases
• It becomes zero

What is the primary reason for using a flywheel in machines?

• To generate electricity
• To reduce noise
• To store rotational energy and maintain uniform motion
• To increase speed

What is the effect of increasing the mass of a rotating body on its moment of inertia?

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

How is rotational kinetic energy related to moment of inertia and angular velocity?

• K = Iω
• K = ½ Iω²
• K = Iω²
• K = ½ mv²