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Cambridge AS & A Level Physics

12.2Centripetal acceleration

Centripetal acceleration in Cambridge AS & A Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
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Learning objectives

What the syllabus expects you to be able to do.

  1. 12.2.1Explain that a constant force perpendicular to the motion causes centripetal acceleration.
  2. 12.2.2Recognise that centripetal acceleration gives circular motion at constant angular speed.
  3. 12.2.3Recall and use the two expressions for centripetal acceleration.
  4. 12.2.4Recall and use the two expressions for centripetal force.

Lessons

  • Centripetal acceleration and centripetal force

    40 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Centripetal acceleration: sample question

1 mark

A car travels round a flat, unbanked bend at constant speed. Which force provides the centripetal force?

Choose one answer

Turn Centripetal acceleration into a strength.

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