Angular Momentum Definition

ănggyə-lər
noun
The vector product of the position vector (from a reference point) and the linear momentum of a particle.
American Heritage
The momentum characteristic of a rotating object; the product of linear momentum and the perpendicular distance from the origin of coordinates to the path of the object: the conservation of angular momentum causes a spinning skater, star, etc. to increase (or decrease) in velocity as the radius is reduced (or increased)
Webster's New World
The vector sum of the angular momentums of each infinitesimal component particle of an extended body.
American Heritage

(physics) The vector product that describes the rotary inertia of a system about an axis and is conserved in a closed system. For an isolated rigid body, it is a measure of the extent to which an object will continue to rotate in the absence of an applied torque.

Wiktionary

Other Word Forms of Angular Momentum

Noun

Singular:
angular momentum
Plural:
angular momenta

Angular Momentum Sentence Examples

  • On the other hand, if the effects arose from balanced stresses set up inside the globe by the radiation, the effects on the vanes and on the case would be of the nature of action and reaction, so that the establishment of motion of the vanes in one direction would involve impulsion of the case in the opposite direction; but when the motion became steady there would no longer be any torque either on the vanes or on the case, and the latter would therefore come back to its previous position of equilibrium; finally, when the light was turned off, the decay of the motion of the vanes would involve impulsion of the case in the direction of their motion until the moment of the restoring torque arising from the suspension of the case had absorbed the angular momentum in the system.

  • The velocity of propagation of a torsional disturbance along a wire of circular section may be found by the transfer of momentum method, remembering that we must now replace linear momentum by angular momentum.

  • Hence the angular momentum conveyed per second outwards is 2prra 4 Ud0/dt.

  • Since no angular momentum goes out on the whole Z nwra 4 d0/dx -?- 2 pwra 4 Ud0/dt = o.

  • Lord Kelvin was thereby induced to identify magnetic force with rotation, involving, therefore, angular momentum in the aether.

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Words Starting With

AANANG

Words Ending With

MUMTUM

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angular momentum

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