Chapter Objectives:

• Distinguish between rotate and revolve.
• Describe rotational speed.
• Give examples of centripetal force.
• Describe the motion of an object if the centripetal force acting on it ceases.
• Explain why centrifugal force is "fictitious."
• Describe how a simulated gravitational acceleration can be produced.
• •Define and describe torque.
• Describe the condition for one torque to balance another.
• Describe center of gravity.
• Describe center of mass
• Describe how to find the center of gravity of an irregularly shaped object.
• Given the location of the center of gravity of an object and the position and direction of the forces on it, tell whether the forces will produce rotation.
• Describe on what the rotational inertia of an object depends.
• Define angular momentum and describe the conditions under which it (a) remains the same and (b) changes.
• Give an example in which rotational speed changes but angular momentum does not.

Chapter Terms:

• tangential speed
• rotational speed
• rotational inertia
• torque
• center of mass (CM)
• center of gravity (CG)
• equilibrium
• centripetal force
• dentrifugal force
• angular momentum
• conservation of angular momentum

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Chapter Formulas:

Torque = lever arm x force

Chapter Outline Framework:

• Circular Motion
• Rotational Inertia
• Torque
• Center of Mas and Center of Gravity
  • Locating the center of Gravity
  • Stability
• Centripetal Force
• Centrifugal Force
• Centrifugal Force in a Rotating Reference Frame
• Simulated Gravity
• Angular Momentum
• Conservation of Angular Momentum

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