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# velocity

«velocity» in Mova's school dictionary: **speed in a particular direction** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun (velocity, velocities)

### meaning for a pupil

1) Velocity is speed in a particular direction. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/velocity/#m1)

2) In everyday use, velocity means speed, especially high speed. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/velocity/#m2)

### sense in the lessons

In science and maths lessons, speed tells how fast something goes; velocity tells how fast and which way. Velocity is measured in metres per second (m/s). If you run round a track at the same speed, your velocity keeps changing because your direction changes. Escape velocity is the speed a rocket needs to leave Earth's pull.

### examples

- The ball left the bat at a high velocity. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/velocity/#x1)
- Velocity is speed in a given direction. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/velocity/#x2)
- A rocket needs a huge velocity to escape Earth. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/velocity/#x3)
- The river's velocity was faster in the middle. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/velocity/#x4)
- We measured the velocity of the toy car in metres per second. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/velocity/#x5)
- Wind velocity was 50 kilometres per hour from the north. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/velocity/#x6)

### note

Mostly uncountable; plural velocities in science. In maths problems, velocity = distance (displacement) divided by time; a negative velocity means moving the opposite way. Speed has no direction; velocity does.

### Trees and pragmatics

[Every meaning and example of «velocity» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/velocity/), each sentence with its dependency tree and frames.