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Class 7 Science MCQs – Practice Test 1 (Chapter 23)

Sound Waves MCQs with Answers PDF Download – Test 1

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Learn Sound waves Multiple Choice Questions (MCQs) with Answers PDF to support middle school STEM. Download the Sound Waves MCQs PDF e-Book, Ch. 23-1 to study Class 7 Science Course. Learn Sound Waves Quiz Questions and Answers for science academic coaching online. Download the Sound Waves MCQs App: Free Class 7 Science Study App to speed of sound, all around sounds, sound absorption test prep for science student digital learning.

Free "Sound Waves MCQs" App Download with MCQ: As compare to air, sound travels faster in; with answers: gases, liquids, vacuum, and fluids. Solve Speed of Sound MCQ Questions, download Google e-Book (Free Chapter) to support middle school STEM.

Sound Waves MCQs – Practice Test 1 PDF Download

MCQ 1: As compare to air, sound travels faster in:

  1. liquids
  2. gases
  3. vacuum
  4. fluids

MCQ 2: Sounds of vehicles, aircrafts and machines are called:

  1. artificial sounds
  2. natural sounds
  3. noise
  4. normal sounds

MCQ 3: Large empty room often sounds:

  1. full
  2. hollow
  3. noisy
  4. repeating

MCQ 4: For communication astronauts use radio because:

  1. sound travels at very high speed in vacuum
  2. sound does not travel in vacuum
  3. vacuum repels sounds
  4. sound energy turns into light in vacuum

MCQ 5: In concert halls, soft materials and carpets are used to:

  1. increase sound waves
  2. absorb sound waves
  3. retract sound waves
  4. refract sound waves

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

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