AP Conservation of Angular Momentum
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Physics
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9th Grade
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Medium
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g Custer
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6 Slides • 6 Questions
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AP Conservation of Angular Momentum
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Rotational Inertia
More mass = more rotational inertia
The farther the mass is from the point of rotation = more rotational inertia
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Rotational Inertia
is the general equation for rotational inertia.
You will not have to solve for I on the AP Physics 1 Exam, it will always be given to you.
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Conservation of Angular Momentum
In the absence of a net external torque (the system is isolated) the net angular momentum of a system is conserved.
Moment of Inertia and Angular Velocity change inversely as mass distribution changes.
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Angular Momentum Formula
L is the Angular Momentum
I is the Moment of Inertia
ω is the Angular Velocity
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Notice changes in angular velocity and rotational inertia.
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Multiple Choice
According to the Law of Conservation of Angular Momentum, if I (momentum of inertia) increases, what will happen to ω?
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
Stars originate as large bodies of slowly rotating gas. Because of gravity, these clumps of gas slowly decrease in size. What happens to the angular speed of the star as it shrinks?
AP Conservation of Angular Momentum
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