Sound Waves Notes App | Class 7 Science Notes e-Book PDF Download | 12
Class 7 Science MCQs (Grade 7) From Textbook

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

Sound Waves Notes Questions with Answers PDF – Test 12

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Study Sound waves Notes Questions and Answers PDF for science remote classroom systems. Download the Sound Waves Quiz Answers PDF e-Book, Ch. 23-12 to study Class 7 Science Course. Practice Sound and Vacuum MCQ PDF, Sound Waves Quiz Questions and Answers for science remote classroom systems. Download the Sound Waves Notes App: Free Class 7 Science App to sound and vacuum, musical instruments, sound absorption, sound waves and echoes, frequency and pitch test prep to enhance science digitally.

The "Sound Waves Notes" App Download: Percussion instruments produce notes when they are; MCQ with answers: banged, struck, blown, and shaken. Practice Sound and Vacuum MCQ Questions, download Kobo e-Book (Free Chapter) to improve revision techniques.

Sound Waves Notes Q&A PDF Download – Practice Test 12

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 Notes App & e-Book

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