Transcription of Chapter 11: Angular Momentum - Polytechnic School
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Chapter 11: Angular Momentum - Polytechnic School
Michelle Miller ap physics April 23, 2012 Chapter 11: Angular Momentum Summary: This unit builds upon the Chapter 10 analysis of rotational motion by focusing upon torque and the conservation of Angular Momentum . Like linear Momentum , Angular Momentum is conserved when no external torques act on the system. = = = Key Equations: L = r x p = I Li = Lf Major Topics: Cross products: Torque and Angular Momentum are both evaluated using cross products. The resultant direction can be found using the right hand rule and the magnitude can be found using the sin of the angle between the two vectors. (ex: = r F = rFsin ) The cross product L = r x p can be used to define the instantaneous Angular Momentum of any particle mass relative to another point in space. The equation L =I can be used to determine the Angular Momentum of a rotating object.
AP Physics April 23, 2012 Chapter 11: Angular Momentum Summary: This unit builds upon the Chapter 10 analysis of rotational motion by focusing upon torque and the conservation of angular momentum. Like linear momentum, angular momentum is conserved when no external torques act on the system.
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