Cht 9-11 Rotational Motion

In this unit you will be able to:

1. Relate the concepts of axis, rotation, revolution, rotational speed and tangential speed.
2. Define torque and identify the torques present in a variety of physical conditions.
3. Describe the forces on a body undergoing circular motion and correctly explain the concept of centripetal force
4. Compare and contrast centripetal force and centrifugal force. What does it mean that centrifugal force is a “false force”?
5. Apply knowledge of circular motion to predict and explain the behavior of several “everyday” systems.
6. Define center of gravity and discuss its significance.
7. Locate the center of gravity of a body and describe how to do it in other bodies.
8. Determine the relative stability of a body by locating its center of gravity.
9. Apply knowledge of center of gravity to predict and explain the behavior of several “everyday” systems.
10. Define rotational inertia and describe several examples of it.
11. Relate the concepts of rotational inertia and angular momentum.
12. Define angular momentum, discover the factors that affect it, and apply conservation principles to several independent phenomena.
13. Apply knowledge of rotational mechanics to predict and explain the behavior of some “everyday” systems.