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Periodic motion (A-level only)

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Question 22

A capsule of mass MMM undergoes spin-trials in a centrifuge, moving in a circle of diameter DDD. The centrifuge completes nnn full revolutions per second. What is the kinetic energy of the capsule?

A

12π2Mn2D2\frac{1}{2} \pi^2 M n^2 D^221​π2Mn2D2

B

2π2Mn2D22 \pi^2 M n^2 D^22π2Mn2D2

C

18π2Mn2D2\frac{1}{8} \pi^2 M n^2 D^281​π2Mn2D2

D

π2Mn2D2\pi^2 M n^2 D^2π2Mn2D2

Markscheme

Periodic motion (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Periodic motion (A-level only)

45 exam-style questions on AQA A Level Physics Periodic motion (A-level only), covering Circular motion (A-level only), Simple harmonic motion (SHM) (A-level only), Simple harmonic systems (A-level only), and Forced vibrations and resonance (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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