momentum


Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Encyclopedia, Wikipedia.

momentum

 [mo-men´tum]
the quantity of motion; the product of mass by velocity.

mo·men·tum

(mō-men'tŭm)
The tendency of an object in motion to continue in motion.
[L., abridgment of movimentum, movement]

momentum

the 'quantity of motion' of a body or object. A vector quantity. linear momentum the product of mass and velocity. The change in linear momentum is equal to the linear impulse. conservation of linear momentum in the absence of external unbalanced forces, the total linear momentum of colliding bodies or objects will remain constant. Commonly applied to racquet/ball impacts. angular momentum the product of moment of inertia and angular velocity. conservation of angular momentum in the absence of an external moment (torque), the angular momentum of a rotating body will remain constant. Often applied to low-velocity flight (e.g. gymnastics) to explain how a body can increase or decrease angular velocity by manipulating moment of inertia (e.g. by 'tucking'). trading of angular momentum if, in the absence of an external moment (torque), an object or body is rotating about one axis (e.g. somersaulting) and rotation about another axis is introduced (e.g. tilt), the result will be a rotation about a third axis (e.g. twist) due to the vector nature of angular momentum. transfer of angular momentum can occur from one part of a body to another in the absence of an external moment (torque) (e.g. if one part of a body increases angular velocity, another part must decrease to conserve angular momentum).

mo·men·tum

(mō-men'tŭm)
The tendency of an object in motion to continue in motion.
[L., abridgment of movimentum, movement]

momentum,

n quantity of motion, expressed as the product of mass and velocity.

momentum

the quantity of motion; the product of mass and velocity.
References in periodicals archive ?
The S&P Momentum Indices are constructed from the constituents of the S&P Global BMI, a comprehensive, rules-based index measuring global stock market performance.
If the Momentum indicator reaches extremely higher low values (relative to its historical values), a continuation of the current trend may be called for.
Etienne Brits, CEO of Swabou Life/Momentum Namibia, indicated that: "The Myriad product range will now be marketed, distributed, underwritten and serviced by Momentum Namibia in Windhoek.
When a cue ball transfers all of its momentum to another ball, it will cause the cue ball to -- --.
Markets that have seen a swell in interest also experienced a strong rise in momentum over the last quarter, including Chicago, Washington D.
She had a momentum chart (see Appendix) which asked the following question: "Was momentum begun by a good performance by one team, poor performance by one team, or a combination of both?
Another momentum builder at the end of the third game again helped Taft.
This occurs because the weight is heavy enough and the form required strict enough to eliminate momentum while raising the weight.
El Nino boosts the atmosphere's angular momentum by slowing down the tropical easterlies and speeding the westerlies outside the tropics, says Salstein.
Jamie Minner comes to Momentum as a Board Member for Communications Technology Professional (CTP) and was previously a Director at MHO Networks.
Our content is appropriate for upper-level undergraduate and graduate-level students as well as professionals," said Shoshanna Goldberg, Executive Editor for the new Momentum Press Health imprint.
The proton momentum and electron energy determine the electron-neutrino opening angle.