In conversation, her ideas emerge at a roiling boil that often takes on a momentum of its own.
But in 2014, numerous states passed common-sense public safety laws, showing that the momentum for gun safety is building.
Currency problems are procyclical, which is to say that they create their own momentum.
Doing three in a row got a momentum going and I want to keep that momentum going.
Bolstered by the momentum of Savage, Masters continued to accumulate up-and-coming conservative talent.
All are full of the momentum which they have caught from their mode of conveyance.
The ball once started gained size and momentum as it progressed.
When within a few rods of each other we ceased paddling, and drifted by with the momentum.
The momentum of the flywheel A pushes the piston upward, closing these holes.
The momentum acquired seems to serve for the balance of the year.
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 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.”