Sound Waves MCQs App | Class 7 Science MCQ e-Book PDF Download | 17
Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science MCQs – Practice Test 17 (Chapter 23)

Sound Waves MCQs with Answers PDF – Download Test 17

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The "Sound Waves MCQs" App Download: Short waves have; MCQ with answers: high energy, low energy, same energy as long waves, and low frequency. Solve Speed of Sound MCQ Questions, download Google e-Book (Free Chapter) to learn environmental science.

Sound Waves MCQs PDF Download – Practice Test 17

MCQ 81: If we put our ear by the wall, we will:

  1. not hear anything
  2. hear everything from other side
  3. some sounds from other side but not clearly
  4. noise of traffic, aircrafts and machines

MCQ 82: Short waves have:

  1. low energy
  2. high energy
  3. same energy as long waves
  4. low frequency

MCQ 83: Musical sounds are organized into:

  1. notes
  2. pitch
  3. wave fronts
  4. phases

MCQ 84: If frequency of sound wave is 100 Hz, it will send:

  1. 1 wave in 100 seconds
  2. 2 waves in 50 seconds
  3. 100 waves in one second
  4. 50 waves in two seconds

MCQ 85: As we turn older, our ears get:

  1. less sensitive to low pitched sound
  2. more sensitive to low pitched sound
  3. less sensitive to high pitched sound
  4. more sensitive to high pitched sound

Class 7 Science MCQs App & e-Book – Sound Waves Study Guide

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