Class 7 Science MCQ App | Sound Waves MCQ e-Book PDF

Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science MCQs – Practice Test 30 (Chapter 23)

Sound Waves MCQ with Answers PDF Download – Test 30

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Learn Sound waves Multiple Choice Questions (MCQ Quiz) with Answers PDF (Sound Waves MCQ PDF e-Book) download Ch. 23-30 to learn Class 7 Science Course. Study Volume and Amplitude Multiple Choice Questions and Answers (MCQs) PDF, Sound Waves Quiz Questions and Answers to study online classes courses. Study Class 7 Science MCQ App Download: Free Sound Waves MCQ App to learn volume and amplitude, sound waves and noise, speed of sound, sound waves and echoes test prep for online certifications.

Free "Class 7 Science MCQ" App Android & iOS with MCQ: Louder the sound, the more; with answers: the wavelength, the wave front, the energy, and the frequency to study online classes courses. Practice Volume and Amplitude MCQ Questions, download Apple Book (Free Chapter) for virtual elementary school.

Sound Waves MCQ – Practice Test 30 PDF Download

MCQ 146: The louder the sound, the more:

  1. the wave front
  2. the wavelength
  3. the energy
  4. the frequency

MCQ 147: Unwanted or unpleasant sounds are known as:

  1. music
  2. noise
  3. laugh
  4. yawn

MCQ 148: Some whales produce songs that travel for about:

  1. 1 kilometer
  2. 2 kilometers
  3. 50 kilometers
  4. 100 kilometers

MCQ 149: In air, the speed of sound is:

  1. 3000 m/s
  2. 300 m/s
  3. 3300 m/s
  4. 330 m/s

MCQ 150: Bats use ultrasound to find its:

  1. home
  2. predator
  3. prey
  4. baby

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