# angular momentum

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Related to Rotational angular momentum: Rotational inertia, Rotational kinetic energy

## angular momentum

n.
1. The vector product of the position vector (from a reference point) and the linear momentum of a particle.
2. The vector sum of the angular momentums of each infinitesimal component particle of an extended body.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

## angular momentum

n
(Mathematics) a property of a mass or system of masses turning about some fixed point; it is conserved in the absence of the action of external forces
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## an′gular momen′tum

n.
the product of the moment of inertia of a body about an axis and its angular velocity with respect to the same axis.
[1870–75]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

## an·gu·lar momentum

(ăng′gyə-lər)
A quantity used to measure the motion of a body that is moving in a circle. The angular momentum depends on the mass and velocity of the body, and on the radius of the circle that it is moving along. Because the velocity of a body moving in a circle is always changing (since velocity is speed and direction), its angular momentum is also always changing.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 angular momentum - the product of the momentum of a rotating body and its distance from the axis of rotation; "any rotating body has an angular momentum about its center of mass"; "angular momentum makes the world go round"momentum - the product of a body's mass and its velocity; "the momentum of the particles was deduced from meteoritic velocities"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
moment hybnosti
kotni moment
ugaoni moment
References in periodicals archive ?
During evolution first planets were formed when the orbital angular momentum of the planet is compared to the rotational angular momentum of the central body.
A tidal antipode is an equilibrium-restoring mechanism to maintain Earth's rotational angular momentum, where both the sun and the moon are the disrupting bodies dynamically and visibly affecting Earth's oceans.

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