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3 marksHarmonic Motion

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

A horizontal plate is vibrating vertically, as shown in Figure 2. The plate undergoes simple harmonic motion with a frequency of 4.5 Hz and amplitude 3.0 mm. A metal cube of mass 5.8 g rests on the plate.

Calculate the maximum kinetic energy of the cube.

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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)(iii)Explain why the cube loses contact with the plate.[2 marks]
  3. 2(a)(iv)Calculate the amplitude of oscillation at the instant the cube loses contact with the plate.[3 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]

More practice: the rest of this paper · more Harmonic Motion questions · all CAPE Physics Unit 1 past papers