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3 marksProperties of Waves

CAPE Physics Unit 1 · 1999 · Paper 2 · Question 6(e)

Figures 6a and 6b show, at an instant, the shape of the water surface in a ripple tank for (i) a progressive wave and (ii) a stationary wave. Copy Figures 6a and 6b in your answer booklet.

Directly below EACH figure in your answer booklet, draw on the dotted line, the state of the water surface one quarter of a period later.

This question uses a figure or table from the paper — you'll see it when you practise.

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Other parts of this question

  1. 6(a)(i)Describe how the displacements of P and Q vary with time.[5 marks]
  2. 6(a)(ii)Calculate the speed of the waves.[1 mark]
  3. 6(b)Describe an experiment to demonstrate the diffraction of plane water waves in a ripple tank for a narrow gap. Draw a diagram of what you would expect to see…[3 marks]
  4. 6(c)Explain why this occurs.[4 marks]
  5. 6(d)Write down expressions for displacement and velocity of the water molecules with time. Hence, deduce an expression for the power due to the water waves in…[5 marks]

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