Sound and Hearing Multiple Choice Questions and Answers 7 PDF Book Download

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MCQ on Sound and Hearing Worksheets 7 PDF Book Download

MCQ: Sounds which are below 20Hz frequencies are called

  1. infrasound
  2. ultrasound
  3. mega sound
  4. micro sound


MCQ: A form of energy which is produced by vibrations and can be detected by ears is called

  1. sound
  2. waves
  3. heat
  4. electric current


MCQ: Loudness is measured by

  1. sound level meter
  2. spectrometer
  3. thermostat
  4. thermometer


MCQ: Sound travels at speed of 5960m/s in

  1. air
  2. water
  3. steel
  4. water


MCQ: Regions where molecules are compressed are called

  1. rarefactions
  2. compressions
  3. digressions
  4. progressions