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L=Iω

Definition

L=Iω represents the angular momentum of an object. It is equal to the moment of inertia (I) multiplied by the angular velocity (ω).

Analogy

Imagine a spinning top. The angular momentum can be compared to how fast it spins and how much mass is distributed around its axis. The more mass it has and the faster it spins, the greater its angular momentum.

Related terms

Angular momentum: Angular momentum refers to the rotational equivalent of linear momentum. It depends on both the moment of inertia and angular velocity.

Conservation of angular momentum: Conservation of angular momentum states that in a closed system with no external torques acting, the total angular momentum remains constant.

Rotational motion: Rotational motion refers to motion around an axis or center point. It involves concepts such as torque, moment of inertia, and angular velocity.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.