what is the definition of momentum?

Learn Definition of momentum from the DictAbc Dictionary, How to use momentum in a Example Sentence.

momentum Definition In English

0 the force that keeps an object moving:
- In an attempt to give new momentum to their plans, the committee set a date for starting detailed discussions.
- The play loses momentum (= becomes less interesting, energetic, etc.) by its half way stage.
- The spacecraft will fly around the earth to gain/gather momentum for its trip to Jupiter.
- Once you push it, it keeps going under its own momentum.
1 the force or speed of an object in motion, or the increase in the rate of development of a process:
- Technology seems to create its own momentum – if something can be done, it will be.
- A falling object gains momentum as it falls.
2 the force that keeps an object moving or keeps an event developing after it has started:
- business/economic/political momentum
- upward/forward/downward momentum
- Election of business oriented leaders gave momentum to new downtown redevelopment.
- build/increase/add momentum We continue to build momentum in our quest to grow our businesses.
- There is worrying evidence that the economy is losing momentum.
- gain/pick up/gather momentum Stocks gained momentum on strong quarterly reports across the tech world.

The laser eventually leaves the electron behind, with no increase in the particle momentum.
You kept up the momentum, and all your actors kept it up.
In classical mechanics, momentum is the product of the velocity and mass of a moving body.
For given layer densities and upstream fluid depths, the mass, momentum and energy conservation equations are obtained.
Whether the political will exists or can be generated to maintain this momentum, only the future will tell.
The pressure tensors in the momentum equations of ions and of electrons play two crucial roles in the collisionless magnetic reconnection.
The scalar potential in the continuity and momentum equations is taken as the linear combination of the electrostatic and self-gravitational potential.
Equations (12)-(15) represent the important conserved quantities of mass, momentum, the y component of the electric field and entropy.