Sound and Hearing Multiple Choice Questions and Answers 7 pdf eBooks Download

Learn sound and hearing MCQs, grade 8 science test 7, pitch and loudness multiple choice questions and answers. Pitch and loudness revision test has science worksheets, answer key with choices as ultrasound, infrasound, mega sound and micro sound of multiple choice questions (MCQ) with pitch and loudness quiz as sounds which are below 20hz frequencies are called for competitive exam prep, viva interview questions. Free science study guide to practice pitch and loudness quiz to attempt multiple choice questions based test.

MCQs on Sound and Hearing Quiz pdf Download Worksheets 7

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