11. Which of the following does NOT affect the moment of inertia of a body? A. Mass of the body B. Distribution of the body C. Angular velocity of the body D. Axis of rotation of the body 12. What is the moment of inertia of a 2 kg long uniform rod with a length of 2m if the axis of rotation is located at its one end? A. 0.67 kg m? B. 2.67 kg m? C. 3.20 kg m? D. 5.33 kg m? 13. A 10 kg solid cylinder has a radius of 0.1 m. What is its moment of inertia if the axis of rotation is located at its center? A. 0.04 kg m? B. 0.05 kg m? (B) C. 0.07 kg m? D. 0.1 kg m? 14. A 20 kg uniform solid sphere with the length of 0.1 m is rotated at its center. What is its moment of inertia? A. 0.08 kg m? B. 0.13 kg m? C. 0.10 kg m? D. 0.20 kg m? 15. A mass of 10 kg, which may be a point-like object, is attached to a rope of length 1.5 m and is being rotated. What is the moment of inertia of the object? A. 1.875 kg m? B. 7.5 kg m? C. 15 kg m? D. 22.5 kg m? 16. To increase the moment of inertia of a body about an axis, you must A. Increase the angular velocity. B. Increase the angular acceleration. C. Make the body occupies less space. D. Place part of the body farther from the axis. 17. A solid ball and a cylinder roll down an inclined plane. Which reaches the bottom first? A. The cylinder. B. The solid ball. C. They reaches the bottom at the same time. D. It depends on the relative diameter of the two. 18. A student sits on a spinning stool with his arms folded. When he extends his arms, which of the following occurs? A. He increases his moment of inertia, thus increasing his angular speed. B. He increases his moment of inertia, thus decreasing his angular speed. C. He decreases his moment of inertia, thus decreasing his angular speed. D. His angular speed remains constant by conservation of angular momentum. 19. A man turns with an angular velocity on a rotating table, holding two equal masses at arm's length. If he drops the two masses without moving his arms, A. his angular velocity increases. B. his angular velocity decreases. C. his angular velocity becomes zero. D. his angular velocity remains the same. 20. The moment of inertia of an object is greater when most of the mass is located A. off center B. near the center C. on the axis of rotation D. away from the axis of rotation