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3 marksHarmonic Motion

CAPE Physics Unit 1 · 2015 · Paper 2 · Question 2(a)(iv)

The amplitude of oscillation of the plate in (a)(ii) is gradually increased, while the frequency remains constant. At a particular amplitude and at the position of maximum displacement, the cube loses contact with the plate for an instant.

Calculate the amplitude of oscillation at the instant the cube loses contact with the plate.

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Other parts of this question

  1. 2(a)(i)State TWO conditions that must be satisfied for simple harmonic motion to occur.[2 marks]
  2. 2(a)(ii)Calculate the maximum kinetic energy of the cube.[3 marks]
  3. 2(a)(iii)Explain why the cube loses contact with the plate.[2 marks]
  4. 2(b)(i)On the grid provided in Figure 4 (page 9), plot a graph of amplitude of oscillation, y, against frequency, f.[4 marks]
  5. 2(b)(ii)Use your graph to determine the angular frequency for the block when it is oscillating at maximum amplitude.[1 mark]

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