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Question 188

Some students make statements about waves and sound.

In each part of the question, only one statement is correct. Select the correct statement for each part:

a.
  • Sound waves and light waves are both transverse waves.
  • Sound waves are longitudinal waves and light waves are transverse waves.
  • Sound waves are transverse waves and light waves are longitudinal waves.
[1]
b.
  • Ultrasound waves have frequencies below 20 Hz20\text{ Hz}20 Hz.
  • Ultrasound waves have frequencies between 20 Hz20\text{ Hz}20 Hz and 20 000 Hz20\,000\text{ Hz}20000 Hz.
  • Ultrasound waves have frequencies above 20 000 Hz20\,000\text{ Hz}20000 Hz.
[1]
c.
  • Increasing the frequency of a sound wave increases its speed.
  • Increasing the frequency of a sound wave increases its pitch.
  • Increasing the frequency of a sound wave increases its amplitude.
[1]
d.
  • The spreading of sound waves as they pass through a doorway is an example of diffraction.
  • The spreading of sound waves as they pass through a doorway is an example of refraction.
  • The spreading of sound waves as they pass through a doorway is an example of reflection.
[1]
Markscheme

Sound Questions

  1. IGCSE
  2. /Physics
  3. /Sound

295 exam-style questions on CIE IGCSE Physics Sound, covering Sound. Each one has a worked solution and a mark scheme showing where the marks go.

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