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

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Class 7 Science Certification MCQs – Practice Test 27 (Chapter 23)

Sound Waves Quiz with Answers PDF Download – Test 27

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Study Sound waves Quiz Questions and Answers PDF (Sound Waves Quiz PDF e-Book) download Ch. 23-27 to learn Class 7 Science Course. Solve Musical Instruments MCQs PDF, Sound Waves Quiz Questions and Answers for homeschool certification courses. Learn Sound Waves Quiz App Download: Free Class 7 Science Quiz App to learn musical instruments, musics and musical sound, ultrasound, vibrations and sound waves, speed of sound test prep for online school courses.

Free "Sound Waves Quiz" App iOS & Android with MCQ: Two similar string instruments are; with answers: piano and violin, piano and guitar, guitar and violin, and harp and piano for homeschool certification courses. Study Musical Instruments MCQ Questions, download Google Book (Free Chapter) for online elementary school classes.

Sound Waves Quiz – Practice Test 27 PDF Download

MCQ 131: Two similar string instruments are:

  1. piano and guitar
  2. piano and violin
  3. guitar and violin
  4. harp and piano

MCQ 132: Notes are put together to produce a pleasing sound known as:

  1. noise
  2. pitch
  3. music
  4. phase

MCQ 133: Sounds with a high frequency which a human ear can detect are known as:

  1. infrasound
  2. ultrasounds
  3. high sounds
  4. low sounds

MCQ 134: When the hand bell stimulates air particles,:

  1. temperature increases
  2. pressure increases in the air
  3. both temperature and pressure decreases in the air
  4. humidity of air keeps on increasing and decreasing

MCQ 135: To avoid noise from the surroundings:

  1. soft curtains should be used
  2. hard curtains should be used
  3. glass windows should be used
  4. vacuum windows should be used

Class 7 Science Quiz App & e-Book – Sound Waves Certification Guide

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