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4 cards from this section. Quick, good the night before a test.
Define angular momentum in your own words.
Think of it as the momentum for rotating objects.
What happens to angular momentum if no external torque is applied?
Consider a system of spinning objects.
What is the principle of conservation of angular momentum?
Consider conditions when movement is unaffected by outside forces.
True or False: Angular momentum and torque are always related in a predictable way.
Think of how push or pull affects rotational speed.
A hollow sphere of radius R and mass M rotates about an axis through its center. Calculate its moment of inertia and discuss how it relates to angular acceleration when a torque is applied.
Refer back to the definitions of moment of inertia and relate them to torque.
Consider a rotating rigid body that experiences an external torque until it reaches a steady angular velocity. Discuss the energy transformations involved.
Think about how energy flows from mechanical input to the kinetic energy of the body.
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