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

Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science MCQs – Practice Test 26 (Chapter 23)

Sound Waves MCQ with Answers PDF Download – Test 26

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Learn Sound waves Multiple Choice Questions (MCQ Quiz) with Answers PDF (Sound Waves MCQ PDF e-Book) download Ch. 23-26 to learn Class 7 Science Course. Study Sound Waves and Echoes Multiple Choice Questions and Answers (MCQs) PDF, Sound Waves Quiz Questions and Answers for science remote learning support. Free Sound Waves Study App Download: Class 7 Science MCQ App to learn sound waves and echoes, waves of energy, frequency and pitch, speed of sound, vibrations and sound waves test prep for science digital learning networks.

Free "Sound Waves" App (iOS & Android) with MCQ: 'Dolphins' can capture their prey using; with answers: infrasound, echo, eye sight, and ears and sensors for science remote learning support. Practice Sound Waves and Echoes MCQ Questions, download Apple Book (Free Chapter) to practice remote science tasks.

Sound Waves MCQ – Practice Test 26 PDF Download

MCQ 126: 'Dolphins' can capture their prey using:

  1. echo
  2. infrasound
  3. eye sight
  4. ears and sensors

MCQ 127: When sound travels, the air molecules vibrate:

  1. parallel to the sound direction
  2. perpendicular to the sound direction
  3. opposite to the sound direction
  4. in the direction of the sound

MCQ 128: The highest level of frequency which human ear can detect is:

  1. 2 Hz
  2. 20 Hz
  3. 20kHz
  4. 2kHz

MCQ 129: Sound travels fastest in:

  1. gases
  2. liquids
  3. solids
  4. space

MCQ 130: A hand bell stimulates the:

  1. movement of air particles
  2. collision of air particles
  3. vibration of air particles
  4. energy of air particles

Class 7 Science Notes App & e-Book – Sound Waves Exam Prep

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