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

Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science MCQs – Practice Test 16 (Chapter 23)

Sound Waves Notes Questions with Answers PDF Download – Test 16

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Study Sound waves Notes Questions and Answers PDF (Sound Waves Quiz Answers PDF e-Book) download Ch. 23-16 to study Class 7 Science Course. Practice Speed of Sound MCQ PDF, Sound Waves Quiz Questions and Answers to learn online classes courses. Learn Class 7 Science Notes App Download: Free Sound Waves Notes App to speed of sound, sound and vacuum, musical instruments test prep for online degree programs.

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Sound Waves MCQs – Practice Test 16 PDF Download

MCQ 76: Sound travels more fast in:

  1. air
  2. liquids
  3. solids
  4. all of above

MCQ 77: Sound cannot travel in vacuum because:

  1. there is no pressure in vacuum
  2. there is no air in vacuum
  3. there is no humidity in vacuum
  4. there are no particle in vacuum

MCQ 78: Sound created by musical instruments is amplified by:

  1. increasing string vibration
  2. decreasing string vibration
  3. wooden sound box
  4. metallic sound box

MCQ 79: The length of air cutting is changed by:

  1. valves
  2. fingers
  3. valves and fingers
  4. hands

MCQ 80: An example of stringed instruments is:

  1. guitar
  2. saxophone
  3. drum
  4. flute

Sound Waves Notes App & e-Book – Class 7 Science Admission Tests

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