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CAPE Physics Unit 1 · 2012 · Paper 2 · Question 2(b)(ii)b)

Figure 2 shows a block oscillating vertically between two identical springs, each with spring constant, k. A variable frequency vibrator causes the oscillation. The vibrator has constant amplitude. As the frequency changes, the amplitude of oscillation of the mass is measured, and the data is shown in Table 1.

For the block oscillating at maximum amplitude, determine the period of oscillation.

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Other parts of this question

  1. 2(a)Write an expression for the period of oscillation, T, of the mass-spring system.[1 mark]
  2. 2(b)(i)On the grid provided on page 7, plot a graph of amplitude of vibration, y, against frequency, f.[5 marks]
  3. 2(b)(ii)a)For the block oscillating at maximum amplitude, determine the angular frequency.[2 marks]
  4. 2(c)Calculate the spring constant, k, for ONE of the springs.[3 marks]
  5. 2(d)(i)On your graph, draw a line to show the possible variation with frequency of the amplitude of the vibration of the combined mass.[2 marks]
  6. 2(d)(ii)Briefly describe ONE situation in which it is advantageous to use the phenomenon illustrated in this experiment.[1 mark]

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