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2 marksConservation of Energy and Momentum

CSEC Integrated Science · 2009 · Paper 2 · Question 5(d)(ii)

An investigation is planned to test which material (plastic sheets, leather, cloth) best reduces the loudness of a drum using a sound meter.

Name two variables that may be controlled to make this a fair investigation.

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Other parts of this question

  1. 5(a)(i)State the angle of incidence in the diagram.[1 mark]
  2. 5(a)(ii)Identify which line (AB, BC, BD, or BE) represents: a) the normal, and b) the reflected ray.[2 marks]
  3. 5(b)(i)What colour would John observe in Figure 8 (a)? Give a reason for your answer.[2 marks]
  4. 5(b)(ii)What colour would John observe in Figure 8 (b)? Give a reason for your answer.[2 marks]
  5. 5(c)State one difference between light and sound.[1 mark]
  6. 5(d)(i)State a suitable hypothesis for this investigation.[1 mark]
  7. 5(d)(iii)Construct a table to show how you would record your results.[2 marks]
  8. 5(d)(iv)Outline the procedures that you would follow to carry out this test.[2 marks]

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