Quantity of motion
Quantity Quan"ti*ty, n.; pl. {Quantities}. [F. quantite, L. quantitas, fr. quantus bow great, how much, akin to quam bow, E. how, who. See {Who}.] [1913 Webster] 1. The attribute of being so much, and not more or less; the property of being measurable, or capable of increase and decrease, multiplication and division; greatness; and more concretely, that which answers the question ``How much?''; measure in regard to bulk or amount; determinate or comparative dimensions; measure; amount; bulk; extent; size. Hence, in specific uses: (a) (Logic) The extent or extension of a general conception, that is, the number of species or individuals to which it may be applied; also, its content or comprehension, that is, the number of its constituent qualities, attributes, or relations. (b) (Gram.) The measure of a syllable; that which determines the time in which it is pronounced; as, the long or short quantity of a vowel or syllable. (c) (Mus.) The relative duration of a tone. [1913 Webster]

2. That which can be increased, diminished, or measured; especially (Math.), anything to which mathematical processes are applicable. [1913 Webster]

Note: Quantity is discrete when it is applied to separate objects, as in number; continuous, when the parts are connected, either in succession, as in time, motion, etc., or in extension, as by the dimensions of space, viz., length, breadth, and thickness. [1913 Webster]

3. A determinate or estimated amount; a sum or bulk; a certain portion or part; sometimes, a considerable amount; a large portion, bulk, or sum; as, a medicine taken in quantities, that is, in large quantities. [1913 Webster]

The quantity of extensive and curious information which he had picked up during many months of desultory, but not unprofitable, study. --Macaulay. [1913 Webster]

{Quantity of estate} (Law), its time of continuance, or degree of interest, as in fee, for life, or for years. --Wharton (Law Dict. )

{Quantity of matter}, in a body, its mass, as determined by its weight, or by its momentum under a given velocity.

{Quantity of motion} (Mech.), in a body, the relative amount of its motion, as measured by its momentum, varying as the product of mass and velocity.

{Known quantities} (Math.), quantities whose values are given.

{Unknown quantities} (Math.), quantities whose values are sought. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • quantity of motion — judesio kiekis statusas T sritis Standartizacija ir metrologija apibrėžtis Dydis, išreiškiamas kūno masės ir jo judėjimo greičio sandauga. atitikmenys: angl. kinetic moment; kinetic momentum; linear momentum; quantity of motion vok.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • quantity of motion — judesio kiekis statusas T sritis fizika atitikmenys: angl. kinetic momentum; momentum; quantity of motion vok. Bewegungsgröße, f; Impuls, m rus. импульс, m; количество движения, n pranc. impulsion, f; quantité de mouvement, f …   Fizikos terminų žodynas

  • Quantity of estate — Quantity Quan ti*ty, n.; pl. {Quantities}. [F. quantite, L. quantitas, fr. quantus bow great, how much, akin to quam bow, E. how, who. See {Who}.] [1913 Webster] 1. The attribute of being so much, and not more or less; the property of being… …   The Collaborative International Dictionary of English

  • Quantity of matter — Quantity Quan ti*ty, n.; pl. {Quantities}. [F. quantite, L. quantitas, fr. quantus bow great, how much, akin to quam bow, E. how, who. See {Who}.] [1913 Webster] 1. The attribute of being so much, and not more or less; the property of being… …   The Collaborative International Dictionary of English

  • Quantity of action — Action Ac tion, n. [OF. action, L. actio, fr. agere to do. See {Act}.] 1. A process or condition of acting or moving, as opposed to rest; the doing of something; exertion of power or force, as when one body acts on another; the effect of power… …   The Collaborative International Dictionary of English

  • Constant of motion — In mechanics, a constant of motion is a quantity that is conserved throughout the motion, imposing in effect a constraint on the motion. However, it is a mathematical constraint, the natural consequence of the equations of motion, rather than a… …   Wikipedia

  • Integral of motion — In physics, an integral of motion is a term for a conserved quantity that does not change as time evolves, cf. also constant of motion. In the case of classical mechanics, an integral of motion is a function defined on the phase space (a function …   Wikipedia

  • Laws of motion — Law Law (l[add]), n. [OE. lawe, laghe, AS. lagu, from the root of E. lie: akin to OS. lag, Icel. l[ o]g, Sw. lag, Dan. lov; cf. L. lex, E. legal. A law is that which is laid, set, or fixed; like statute, fr. L. statuere to make to stand. See… …   The Collaborative International Dictionary of English

  • Newton's laws of motion — For other uses, see Laws of motion. Classical mechanics …   Wikipedia

  • density of motion quantity — judesio kiekio tankis statusas T sritis Standartizacija ir metrologija apibrėžtis Judesio kiekis, tenkantis vienetiniam erdvės matui (tūriui). atitikmenys: angl. density of motion quantity; momentum density vok. Dichte der Bewegungsgröße, f rus.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”