angular momentum

noun Physics.

the product of the moment of inertia of a body about an axis and its angular velocity with respect to the same axis.

Also called moment of momentum.

Origin of angular momentum

First recorded in 1865–70

Words nearby angular momentum

angular house, angularity, angular leaf spot, angular magnification, angular measure, angular momentum, angular stomatitis, angular vein, angular velocity, angulate, angulation

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for angular momentum

angular momentum

noun

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 & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for angular momentum

angular momentum

[ ăng′gyə-lər ]

A measure of the momentum of a body in rotational motion. The angular momentum of rigid bodies is conserved; thus, a spinning sphere will continue to spin unless acted on by an outside force. Changes in angular momentum are equivalent to torque. In classical mechanics, angular momentum is equal to the product of the angular velocity of the body and its moment of inertia around the axis of rotation. It is a vector quantity; the vector points up along the axis of counterclockwise rotation. In quantum mechanics, the angular momentum of a physical system is quantized and can only take on discrete values. See also Planck's constant spin.

单词	angular momentum
释义	angular momentum noun Physics. the product of the moment of inertia of a body about an axis and its angular velocity with respect to the same axis. Also called moment of momentum. Origin of angular momentum First recorded in 1865–70 Words nearby angular momentum angular house, angularity, angular leaf spot, angular magnification, angular measure, angular momentum, angular stomatitis, angular vein, angular velocity, angulate, angulation Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for angular momentum angular momentum noun 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 & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for angular momentum angular momentum [ ăng′gyə-lər ] A measure of the momentum of a body in rotational motion. The angular momentum of rigid bodies is conserved; thus, a spinning sphere will continue to spin unless acted on by an outside force. Changes in angular momentum are equivalent to torque. In classical mechanics, angular momentum is equal to the product of the angular velocity of the body and its moment of inertia around the axis of rotation. It is a vector quantity; the vector points up along the axis of counterclockwise rotation. In quantum mechanics, the angular momentum of a physical system is quantized and can only take on discrete values. See also Planck's constant spin. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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