Physics - Chapter 19: Circular motion

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Physics

Circular Motion & Gravitation

A-Level Physics

CIE

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5 Terms

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Radian

The angle subtended at the centre of a circle by an arc of length equal to the radius of the circle

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Angular displacement

The angle of arc through which the object has moved from its starting position

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Angular speed

The angular displacement over unit time

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Centripetal force

The resultant force on an object towards the centre of the circle, when the object is rotating round that circle at a constant speed.

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Centripetal acceleration

The acceleration of an object towards the centre of the circle, with a constant speed