Access this content offline
Omniguides
Skip to reading

Angular Frequency

Reference from the original Physics I textbook.

Angular Frequency

Angular frequency is the rate of change of phase in a periodic oscillation: ω = 2πf. Its unit is rad/s; it need not describe an object physically spinning.

One complete cycle in a sine graph occurs in every 2π increments but the time may vary, so for sine graphs it measures the rate of change of a function at a given time, t and position, x.

Related Glossary Terms

Angular Frequency Equation

Index

Chapter 9 - Mechanical Waves

Chapter 9 - Mechanical Waves

Reviewed physics notes (1)

These corrections keep the original lesson’s purpose while fixing errors in the source edition.

  • Original misidentifies angular frequency as the rate of change of a wave function. — Reference 1

About this edition and its source ↗

Glossary and deeper reading · 1 refreshers

These editorial refreshers supplement the reading. Definitions and examples are added guidance; original source wording and recorded answers remain in their original context.

  • Angular frequency

    Angular frequency measures how rapidly the phase of a sinusoidal oscillation advances. It equals two pi times the ordinary frequency and is measured in radians per second. For example, two oscillators at the same ordinary frequency also have the same angular frequency even if their amplitudes differ.

    Read more: Angular frequency in detail →

Search lessons, terms and problems