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A2 1 Deformation, Thermal Physics, Circular Motion, SHM and Gravity

Quick questions on Circular motion: angular velocity, centripetal acceleration and centripetal force - CCEA A-Level Physics

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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A 0.20 kg0.20\ \text{kg} ball is whirled in a horizontal circle of radius 0.50 m0.50\ \text{m} at 3.0 m s−13.0\ \text{m s}^{-1}. Calculate the centripetal force. [2 marks]
What is q2?
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State what provides the centripetal force for a satellite orbiting the Earth. [1 mark]
What is q3?
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A turntable rotates at 45 rpm45\ \text{rpm}. Calculate the angular velocity and the centripetal acceleration of a point 0.12 m0.12\ \text{m} from the centre. [3 marks]

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