angular velocity: meaning, definition, pronunciation and examples
LowTechnical/Formal
Quick answer
What does “angular velocity” mean?
The rate at which an object rotates or revolves around an axis, measured in angle per unit time (typically radians per second).
Audio
Pronunciation
Definition
Meaning and Definition
The rate at which an object rotates or revolves around an axis, measured in angle per unit time (typically radians per second).
In physics and engineering, it is a pseudovector quantity describing rotational speed and direction. In computing/game development, it describes the rotational speed of an object in a simulation.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or definitional differences. British English may use 'radian' more consistently, while American technical texts might occasionally reference degrees per second in introductory contexts.
Connotations
Identical technical connotations in both varieties.
Frequency
Equally low frequency and confined to technical domains in both varieties.
Grammar
How to Use “angular velocity” in a Sentence
The [object] has an angular velocity of [value].The angular velocity of the [object] is [value].To calculate the angular velocity, [process].Vocabulary
Collocations
Examples
Examples of “angular velocity” in a Sentence
verb
British English
- The system is programmed to angularly velocity the rotor.
American English
- The system is programmed to angularly velocity the rotor.
adverb
British English
- The wheel spun angular-velocity-wise much faster than predicted.
American English
- The wheel spun angular-velocity-wise much faster than predicted.
adjective
British English
- The angular-velocity sensor provided crucial data.
American English
- The angular velocity sensor provided crucial data.
Usage
Meaning in Context
Business
Virtually unused, except in highly specific manufacturing or engineering business contexts.
Academic
Core term in physics, engineering, and mathematics courses dealing with rotational dynamics.
Everyday
Extremely rare. Only used by individuals discussing specific technical problems.
Technical
Standard, precise term in physics, mechanical engineering, robotics, aerospace, and computer graphics/ game physics engines.
Vocabulary
Synonyms of “angular velocity”
Strong
Neutral
Weak
Vocabulary
Antonyms of “angular velocity”
Watch out
Common Mistakes When Using “angular velocity”
- Using it to describe linear motion (e.g., 'the car's angular velocity' for a car moving in a straight line).
- Confusing it with angular acceleration (the rate of *change* of angular velocity).
- Omitting units (rad/s, deg/s) when stating a numerical value.
FAQ
Frequently Asked Questions
It is a pseudovector. It has both magnitude (angular speed) and direction (along the axis of rotation, given by the right-hand rule).
Angular speed is the scalar magnitude of how fast something rotates. Angular velocity includes both that magnitude and the direction of the axis of rotation.
Yes. The sign indicates the direction of rotation relative to a chosen axis (e.g., clockwise vs. counterclockwise).
For a point on a rotating object, its linear velocity (v) is the cross product of the angular velocity vector (ω) and its position vector (r) from the axis: v = ω × r.
The rate at which an object rotates or revolves around an axis, measured in angle per unit time (typically radians per second).
Angular velocity is usually technical/formal in register.
Angular velocity: in British English it is pronounced /ˈæŋɡjələ vɪˈlɒsɪti/, and in American English it is pronounced /ˈæŋɡjələr vəˈlɑːsəti/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None. It is a technical term with no idiomatic usage.”
Learning
Memory Aids
Mnemonic
Imagine a spinning top. The speed at which its *angle* changes (how fast it's turning) is its **angular velocity**—'angular' for angle, 'velocity' for speed with direction.
Conceptual Metaphor
ROTATION IS A FLOW. The angular velocity vector is metaphorically the 'current' or 'flow' of rotation. A higher 'flow' means faster spinning.
Practice
Quiz
What are the standard SI units for angular velocity?