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Unit 6: Energy and Momentum of Rotating Systems
AP Physics 1: Algebra-Based — Note Packet
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Key Terms
Angular Position (θ)
How far something has rotated from a starting point, measured in _______ instead of degrees.
Angular Velocity (ω)
How _______ something is spinning, measured in radians per second.
Angular Acceleration (α)
How quickly a spinning motion is _______ up or slowing down.
Torque (τ)
The _______ that makes things spin, equal to force times the _______ arm.
Lever Arm
The _______ distance from the axis of rotation to where the force is applied.
Moment of Inertia (I)
The rotational version of mass that depends on both mass and its _______ relative to the axis of rotation.
Rolling Without Slipping
The condition where linear speed equals radius times angular speed: v = _______.
Angular Momentum (L)
The rotational equivalent of momentum, equal to _______ times angular velocity.
Rotational Kinetic Energy
The kinetic energy due to spinning motion, equal to ½I_______.
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