Quelpr

Sound · CSEC Physics

35 past-paper questions on Sound, part of Waves and Optics, from every CSEC Physics paper on Quelpr.

Practise Sound
  1. 5(c)(ii)1 mark· CSEC Physics · 1989 · Paper 2What would you expect to hear?
  2. 5(d)(ii)2 marks· CSEC Physics · 1989 · Paper 2On the axes of Figure 7(b) on page 12, draw a graph to show how the applied voltage would vary with time if the sound were louder than that represented in 7(a), but of the same frequency.
  3. 5(d)(iii)2 marks· CSEC Physics · 1989 · Paper 2On the axes of Figure 7(c) on page 12, draw another graph to show how the applied voltage would vary with time if the sound were higher in pitch than that represented in Figure 7(a), but of the same loudness.
  4. 1(b)4 marks· CSEC Physics · 1990 · Paper 2Complete the diagrams in Figure 2 to show the wavefronts after passing through (i) a narrow gap and (ii) a wide gap.
  5. 5(a)(i)2 marks· CSEC Physics · 1992 · Paper 2Draw the waves after they have passed through the gap.
  6. 5(a)(ii)1 mark· CSEC Physics · 1992 · Paper 2What name is given to this effect?
  7. 5(b)(iii)1 mark· CSEC Physics · 1992 · Paper 2An observer notices that when she stands at X, she hears equally well from the three speakers. However, when she stands at Y, she hears mainly from one speaker and much less from the others. From which speaker does she…
  8. 5(b)(iv)2 marks· CSEC Physics · 1992 · Paper 2With reference to the data in the table and diagram on page 10, give an explanation for her observations while at Y.
  9. 5(c)(i)2 marks· CSEC Physics · 1992 · Paper 2Compare the loudness and pitch of waveforms P and Q.
  10. 5(c)(ii)2 marks· CSEC Physics · 1992 · Paper 2Compare the loudness and pitch of waveforms Q and R.
  11. 5(c)(iii)2 marks· CSEC Physics · 1992 · Paper 2Explain in what other way sounds P and Q differ.
  12. 4(iv)2 marks· CSEC Physics · 1993 · Paper 2To detect a distant object, the pulse reflects and must return to the station before another pulse is emitted. What is the furthest distance at which an object may be detected using this system?
  13. 3(a)(iii)2 marks· CSEC Physics · 1997 · Paper 2Complete Figure 7 to show what happens to the waves after passing through the gap.
  14. 3(a)(iv)2 marks· CSEC Physics · 1997 · Paper 2On Figure 8, show what happens when the gap in the barrier is wider.
  15. 3(b)(i)1 mark· CSEC Physics · 1997 · Paper 2Explain the term 'constructive interference'.
  16. 3(b)(ii)2 marks· CSEC Physics · 1997 · Paper 2Mark, with the letter C, TWO places on Figure 9 where constructive interference is taking place.
  17. 3(b)(iii)1 mark· CSEC Physics · 1997 · Paper 2Explain the term 'destructive interference'.
  18. 3(b)(iv)2 marks· CSEC Physics · 1997 · Paper 2Mark, with a letter D, TWO places on Figure 9 where destructive interference is occurring.
  19. 3(b)(v)2 marks· CSEC Physics · 1997 · Paper 2Describe what you would expect to hear as you walk along the line, PQ.
  20. 3(b)(vi)1 mark· CSEC Physics · 1997 · Paper 2If the two speakers were moved closer together, what effect would this have on what you hear as you walk along the line PQ?
  21. 3(b)(i)2 marks· CSEC Physics · 2021 · Paper 2Define the term 'ultrasound'.
  22. 3(b)(ii)1 mark· CSEC Physics · 2021 · Paper 2State ONE example of the application of ultrasound.
  23. 5(c)2 marks· CSEC Physics · May/June 2022 · Paper 2State TWO differences between 'light waves' and 'sound waves'.
  24. 3(b)(i)a)1 mark· Physics Q3 3(b)(i)a)In terms of the distances a and d, write an expression for the distance travelled by the sound pulse after reflection from the front of the skull to the sound detector
  25. 3(b)(i)b)1 mark· Physics Q3 3(b)(i)b)In terms of the distances a and d, write an expression for the distance travelled by the sound pulse after reflection from the back of the skull to the sound detector.
  26. 3(b)(ii)a)2 marks· Physics Q3 3(b)(ii)a)Determine the difference in distance travelled between the first and the second echo
  27. 3(b)(ii)b)1 mark· Physics Q3 3(b)(ii)b)Determine the diameter, d, of the baby's skull.
  28. 3(c)(i)1 mark· Physics Q3 3(c)(i)Deduce whether the velocity of a sound wave will increase, decrease or remain constant when the wave travels from a denser to a less dense medium, given that the frequency remains constant and the wavelength decreases.
  29. 3(c)(ii)2 marks· Physics Q3 3(c)(ii)Compare the waves produced on the slinky spring in part (b) with a typical sound wave in terms of the motion of the particles. Transverse wave on slinky spring, Sound wave.
  30. 3(d)3 marks· Physics Q3 3(d)Calculate the depth of the sea bed below the transmitter. (Speed of sound in sea water = 1 500 m s⁻¹)
  31. 3(d)(ii)1 mark· Physics Q3 3(d)(ii)If, this sound is generated under water instead, what is the frequency that would be detected?
  32. 6(a)(i)3 marks· Physics Q6 6(a)(i)Outline THREE differences between 'light waves' and 'sound waves'.
  33. 6(b)5 marks· Physics Q6 6(b)Calculate the speed of the sound generated.
  34. 6(b)(i)4 marks· Physics Q6 6(b)(i)Explain, with reference to Figure 7, how SONAR was used to determine the depth of an oil plume.
  35. 6(b)(ii)5 marks· Physics Q6 6(b)(ii)If echoes are received 0.3 seconds after being sent, calculate the depth of the oil plume below the detector, given that Velocity = distance / time. [Speed of sound in sea water = 1450 ms⁻¹] [Speed of light in air = 3.0…

Related topics in Waves and Optics