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Uniform Circular Motion
- an object rotating at a steady rate
- motion of an object moving at constant speed along a circular path
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Angular Displacement
- The angle an object in circular motion turns through
- time period = T
- frequency = f
- in radians
- 2πt/T
- 2πft
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Angular Speed
- The angular displacement per second
- Ω (angular displacement) = 2π/T = 2πf = v/r
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Centripetal Acceleration
- direction of the velocity changes continuously as the object moves in a circular path
- acceleration towards the centre of the circle
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Centripetal force
- resultant force on an object moving round a circle at constant speed
- acts towards the centre of the circle
- F=mw2r
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