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Section 11 Rotational Motion
Section 11 Rotational Motion Vocabulary
5
Physics
11th Grade
08/14/2011

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Term
angular momentum
Definition
Product of rotational inertia and rotational velocity
Term
law of conservation of angular momentum
Definition
An object or system of objects will maintain a constant angular momentum unless acted upon by an unbalanced external torque
Term
linear momentum
Definition
Product of the mass and the velocity of an object. Also called momentum. (This definition applies at speeds much less than the speed of light.)
Term
rotational inertia
Definition
The resistance of an object to changes in its state of rotation, determined by the distribution of the mass of the object and the location of the axis of rotation or revolution
Term
rotational velocity
Definition
Rotational speed together with a direction for the axis of rotation or revolution
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