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AP Physics 1: Algebra-Based 6.4 B Describe How the Selection of a System Determines Whether the Angular Momentum of That System Changes Ap Questions

Practise AP Physics 1 6.4.B by choosing a system boundary, identifying external torque, and explaining whether angular momentum is conserved or transferred.

Syllabus
Effective Fall 2024
Course
AP Physics 1: Algebra-Based

Exam points

  • Identify whether friction exerts external torque on a disk–rod system and changes its angular momentum.
  • Explain angular momentum transfer when one part of a rotating system gains and another loses it.

AP Physics 1: Algebra-Based 6.4 B Describe How the Selection of a System Determines Whether the Angular Momentum of That System Changes Ap Questions question 1

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Figure for Question AP Physics 1: Algebra-Based 6.4 B Describe How the Selection of a System Determines Whether the Angular Momentum of That System Changes Ap Questions question 1 — AP Physics 1: Algebra-Based

(7 points, suggested time 13 minutes) Two ladybugs are standing on a rotating disk that is spinning counterclockwise, as shown in the figure above. Assume that friction in the bearings of the axle is negligible.

Ladybug A begins walking in a circular path in the direction of the disk's rotation. Does the magnitude of the angular momentum of the disk alone (not the ladybugs-disk system) increase, decrease, or stay the same? Increase Decrease Stay the same Briefly explain your reasoning.

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