Physics Weekly Class Pages

Chapter 8: Rotational Motion
Physics
Marymount High School
a journey into the physical world!

Physics Syllabus Homework Chart

 Judith S. de Nuño jdenuno@mhs-la.org WebSites http://www.jdenuno.com/ Office Hours Daily Lunch in the Science Patio Cyber Office Hours First Class Chat
 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. back to top 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 back to top 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 back to top 