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# Momentum

[moh-men-tuh m] /moʊˈmɛn təm/

noun, plural momenta
[moh-men-tuh] /moʊˈmɛn tə/ (Show IPA), momentums.
1.
force or speed of movement; impetus, as of a physical object or course of events:
The car gained momentum going downhill. Her career lost momentum after two unsuccessful films.
2.
Also called linear momentum. Mechanics. a quantity expressing the motion of a body or system, equal to the product of the mass of a body and its velocity, and for a system equal to the vector sum of the products of mass and velocity of each particle in the system.
3.
Philosophy. (def 7).
/məʊˈmɛntəm/
noun (pl) -ta (-tə), -tums
1.
(physics) the product of a body’s mass and its velocity p See also angular momentum
2.
the impetus of a body resulting from its motion
3.
driving power or strength
n.

1690s, scientific use in mechanics, “quantity of motion of a moving body,” from Latin momentum “movement, moving power” (see moment). Figurative use dates from 1782.
momentum
(mō-měn’təm)
Plural momenta or momentums
A vector quantity that expresses the relation of the velocity of a body, wave, field, or other physical system, to its energy. The direction of the momentum of a single object indicates the direction of its motion. Momentum is a conserved quantity (it remains constant unless acted upon by an outside force), and is related by Noether’s theorem to translational invariance. In classical mechanics, momentum is defined as mass times velocity. The theory of Special Relativity uses the concept of relativistic mass. The momentum of photons, which are massless, is equal to their energy divided by the speed of light. In quantum mechanics, momentum more generally refers to a mathematical operator applied to the wave equation describing a physical system and corresponding to an observable; solutions to the equation using this operator provide the vector quantity traditionally called momentum. In all of these applications, momentum is sometimes called linear momentum. See also angular momentum, impulse.

In physics, the property or tendency of a moving object to continue moving. For an object moving in a line, the momentum is the mass of the object multiplied by its velocity (linear momentum); thus, a slowly moving, very massive body and a rapidly moving, light body can have the same momentum. (See Newton’s laws of motion.)

Note: Figuratively, momentum can refer to the tendency of a person or group to repeat recent success: “The Bears definitely have momentum after scoring those last two touchdowns.”

Tagged:

• Momi

[moh-muh s] /ˈmoʊ məs/ noun, plural Momuses, Momi [moh-mahy] /ˈmoʊ maɪ/ (Show IPA), for 2. 1. Also, Momos [moh-mos] /ˈmoʊ mɒs/ (Show IPA). Classical Mythology. the god of ridicule. 2. (sometimes lowercase) a faultfinder; a carping critic. /ˈməʊməs/ noun (pl) -muses, -mi (-maɪ) 1. (Greek myth) the god of blame and mockery 2. a cavilling […]

• Momism

[mom-iz-uh m] /ˈmɒm ɪz əm/ noun, (sometimes initial capital letter) 1. excessive adulation of the mother and undue dependence on maternal care or protection, resulting in absence or loss of maturity and independence. /ˈmɒmɪzəm/ noun 1. (US, informal) the excessive domination of a child by his or her mother noun Maternal domination; matriarchalism; mother worship […]

• Momma

[mom-uh] /ˈmɒm ə/ noun 1. . /ˈmɒmə/ noun 1. (US & Canadian) another word for mother1 n. 1884, American English variant of mamma (q.v.). As a biker’s girlfriend or female passenger, from 1950s. noun Any specified object, esp a large, admirable, or effective one; mother, motherfucker: It’s time to put this momma in the oven […]

• Momme

[mom-ee] /ˈmɒm i/ noun, plural momme. 1. a Japanese unit of weight equal to 3.75 grams.

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