Class 7 Science MCQs (Grade 7) From Textbook

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Class 7 Science Exam MCQs – Practice Test 12 (Chapter 23)

Sound Waves Notes Questions with Answers PDF Download – Test 12

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The Sound waves Notes Questions and Answers PDF (Sound Waves Quiz Answers PDF e-Book) download Ch. 23-12 to study Class 7 Science Course. Practice Sound and Vacuum MCQ PDF, Sound Waves Quiz Questions and Answers to study online certification courses. The Sound Waves Notes App Download: Free Class 7 Science App for sound and vacuum, musical instruments, sound absorption, sound waves and echoes, frequency and pitch test prep for online education.

The MCQ: An example to demonstrate the effect of sound in vacuum is; "Sound Waves Notes" App APK Download with answers: simple bell jar, vacuum bell jar, air pump and ring, and air pump and clock to study online certification courses. Practice Sound and Vacuum MCQ Questions, download Kobo e-Book (Free Chapter) for free online classes.

Sound Waves MCQs – Practice Test 12 PDF Download

MCQ: 56

An example to demonstrate the effect of sound in vacuum is

  1. vacuum bell jar
  2. simple bell jar
  3. air pump and ring
  4. air pump and clock
MCQ: 57

Percussion instruments produce notes when they are

  1. struck
  2. banged
  3. blown
  4. shaken
MCQ: 58

Large concert halls have modified roofs which

  1. absorb sounds
  2. reflect sounds
  3. increase loudness of sounds
  4. decrease pitch of sounds
MCQ: 59

Ships send a small

  1. pulse to the sea bed
  2. vibration to the tower
  3. piece of food to fish
  4. beam of sound to check the depth
MCQ: 60

High frequency means

  1. low pitch
  2. high pitch
  3. low amplitude
  4. high wavelength

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

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