Topic 6 - Circular Motion and Gravitation
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Definitions for Topic 6 - Circular Motion and Gravitation: 6.1 - Circular motion 6.2 - Newton's law of gravitation
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7 Terms
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Angular displacement
The angle through which an object moves when in circular motion
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Period
The time it takes for the object to go around the circle once
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Angular speed
= angular displacement/time
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Frequency
=1/period
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Centripetal force
The direction of the centripetal force is towards the center of the circle
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Centripetal accelerations
When velocity changes
Towards the centre
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Gravitational field strength
The force per unit mass experienced by a small point mass