OCR A Level Physics A
OCR A Level Physics A Circular Motion Exam Questions
Free OCR A Level Physics A exam questions on Circular Motion, with mark schemes. Covers angular velocity, centripetal acceleration and centripetal force.
Circular Motion exam questions
1 question pack of real past exam questions with its mark scheme. Answer every question without notes, then mark your answers line by line against the mark scheme.
StemUp mark scheme flashcards
OCR A Level Physics A H556 Flashcards (Anki & Quizlet)
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Use them on Anki or Quizlet, then test yourself with the questions on this page.
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About OCR A Level Physics A Circular Motion
This topic covers motion in a circle.
What you need to know
- Angular velocity ω = θ/t = 2πf.
- Centripetal acceleration a = v²/r = ω²r.
- Centripetal force F = mv²/r, directed to the centre.
- Radians Converting between degrees and radians.
Common mistakes in Circular Motion
- Adding centripetal force as an extra force.
- Using degrees in ω.
- Thinking the speed changes in uniform circular motion.
Try three Circular Motion exam-style questions
1. A 0.50 kg mass moves at 4.0 m s⁻¹ in a 0.80 m radius circle. Find the centripetal force. (1 mark)
Show the mark scheme answer
10 N.
2. Explain why an object in uniform circular motion accelerates. (1 mark)
Show the mark scheme answer
Its velocity direction is constantly changing.
3. Convert 3000 rpm to rad s⁻¹. (1 mark)
Show the mark scheme answer
314 rad s⁻¹.
Circular Motion FAQs
What does Circular Motion cover?
Angular velocity, centripetal acceleration and force.
What provides centripetal force for a car on a bend?
Friction between tyres and road.
What is a radian?
The angle where arc length equals radius.
Revise this topic with flashcards: OCR A Level Physics A H556 Flashcards, with mark scheme answers for Anki and Quizlet.
