Download Unit 10: Rotational Motion

AP Physics: Mechanics
Dynamics of Rotational Motion: Chapter 10
Objectives
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Students will learn that:
o When a force acts on a body, the torque of that force has a magnitude given by the
product of the force and the lever arm.
o The net torque acting on a body equals the product of the body’s moment of inertia and
its angular acceleration.
o If a body is both moving through space and rotating, its motion may be regarded as a
superposition of motions. The kinetic energy is a sum of translational and rotational
kinetic energies.
o When a torque acts on a rigid body that undergoes an angular displacement, the torque
does work on the body. The total rotational work done on a body is equal to the change
in rotational kinetic energy.
o The power, or rate at which the torque does work, is the product of the torque and the
angular velocity.
o The angular momentum of a particle is the vector product of the inertia and angular
velocity.
o If there is zero net external torque on a system the total angular momentum of the
system is constant.
Homework:
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PP 394-359 #’s 2,10,16,19,26,27,31,34,39,42,48,52,55,57,61,63,74,75,83,85,92,97
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