Virtual Labs

What is the definition of angular momentum?

a: The tendency of a rotating body to resist changes in its state of motion Explanation

Explanation

b: The product of linear velocity and mass Explanation

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c: The product of rotational inertia and angular velocity Explanation

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d: The rate of change of angular velocity Explanation

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According to the conservation of angular momentum, what happens if there is no net external torque acting on a system?

a: The angular momentum of the system decreases Explanation

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b: The angular momentum of the system increases Explanation

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c: The angular momentum of the system remains constant Explanation

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d: The angular momentum of the system becomes zero Explanation

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How is the total angular momentum of a system calculated?

a: By summing the linear momenta of all the particles in the system Explanation

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b: By summing the masses of all the particles in the system Explanation

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c: By summing the products of mass and velocity of all the particles in the system Explanation

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d: By summing the individual angular momenta of all the particles in the system Explanation

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Which equation represents the conservation of angular momentum?

a: τ=dt / dL Explanation

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b: dt/dL= 0 Explanation

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c: L=Iω Explanation

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d: L=mvr Explanation

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What is the purpose of spinning the base disk before conducting the experiment?

a: To increase friction between the disks Explanation

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b: To decrease the moment of inertia Explanation

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c: To stabilize the system Explanation

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d: To gradually decrease the angular velocity Explanation

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What factor might introduce error into the experiment if the dropped object is not centered over the axis of rotation?

a: Air resistance Explanation

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b: Torque Explanation

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c: Friction Explanation

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d: Moment of inertia Explanation

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Which of the following is NOT a source of error in Experiment 8?

a: Off-center dropping of the object Explanation

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b: Friction between the disks Explanation

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c: Alignment of the rotary motion sensor Explanation

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d: Imperfections in the experimental setup Explanation

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What parameter is used to determine the percentage difference in angular momentum?

a: Initial and final angular velocities Explanation

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b: Moment of inertia of the system Explanation

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c: Length of the base disk Explanation

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d: Mass of the dropped object Explanation

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CONSERVATION OF ANGULAR MOMENTUM