AP Physics 1 Crash Course for Spring 2021 ๐ŸŽก

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7.0 Unit 7 Overview: Torque and Rotational Motion

#angulardisplacement

#torque

#rotationalmotion

#angularmomentum

#conservation

โฑ๏ธย ย 1 min read

written by

Peter Apps

peter apps

June 8, 2020


Up until this point in the course, all of the motion covered has been described in terms of linear terms (Forces, velocities, displacements, etc.) However a great deal of motion in the world isnโ€™t about an object traveling anywhere, but instead rotating around a fixed axis (wheels, Merry-Go-Round, record/CD/DVD players).

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This unit serves looks at the concepts already covered in units 1-6 and applies them to a rotating object instead of an object moving in a straight line. These topics will account for ~10-16% of the AP exam questions and will take approximately 12-17 45 minute class periods to cover.

Applicable Big Ideas

  • Big Idea #3: Force Interactions - The interactions of an object with other objects can be described by forces.

  • Big Idea #4: Change - Interactions between systems can result in changes in those systems.

  • Big Idea #5: Conservation - Changes that occur as a result of interactions are constrained by conservation laws.

Key Concepts ๐Ÿ”‘

  • Angular Displacement (๐œƒ)

  • Angular Velocity (๐œ”)

  • Angular Acceleration (๐›ผ)

  • Period (T)

  • Torque (๐œ)

  • Moment of Inertia (I)

  • Rotational Kinetic Energy (Krot)

  • Angular Momentum (L)

Key Equations ๐Ÿ—

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๐ŸŽฅWatch: AP Physics 1 - Unit 7 Streams

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