Go to content In general: v = r \omega
where \omega is the angular speed in rad \, s^{-1} ,
r is the radius of the circle in metres,
v is the velocity in ms^{-1} . You can get a better display of the maths by downloading special TeX fonts from jsMath. In the meantime, we will do the best we can with the fonts you have, but it may not be pretty and some equations may not be rendered correctly.

## Glossary

### angular speed

the rate at which the angle changes in circular motion

### circle

a conic curve with equation (x-a)²+(y-b)²=r²

### speed

velocity without direction; a scalar quantity

### union

The union of two sets A and B is the set containing all the elements of A and B.

### velocity

the rate of change of displacement. It is a vector quantity with magnitude and direction.

Full Glossary List

## This question appears in the following syllabi:

SyllabusModuleSectionTopicExam Year
AQA A-Level (UK - Pre-2017)M2Motion in a circleAngular speed-
CCEA A-Level (NI)M2Motion in a circleAngular speed-
CIE A-Level (UK)M2Motion in a circleAngular speed-
Edexcel A-Level (UK - Pre-2017)M3Motion in a circleAngular speed-
OCR A-Level (UK - Pre-2017)M2Motion in a circleAngular speed-
OCR-MEI A-Level (UK - Pre-2017)M3Motion in a circleAngular speed-
Universal (all site questions)MMotion in a circleAngular speed-
Edexcel AS Further Maths 2017Further Mechanics 2Motion in a CircleAngular Speed-
AQA AS Further Maths 2017MechanicsCircular MotionAngular Speed-
OCR AS Further Maths 2017MechanicsMotion in a CircleAngular Speed-
OCR MEI A2 Further Maths 2017Mechanics BCircular MotionAngular Speed-
Edexcel AS/A2 Further Maths 2017Further Mechanics 2Motion in a CircleAngular Speed-
AQA AS/A2 Further Maths 2017MechanicsCircular MotionAngular Speed-