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Class 7 Science Admission Tests: Practice Test 24 (Chapter 23)

Sound Waves Notes Questions & Answers PDF Download - 24

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The Sound waves Notes Questions and Answers PDF (Sound Waves Quiz Answers PDF e-Book) download Ch. 23-24 to study Class 7 Science Course. Practice Speed of Sound MCQ PDF, Sound Waves Quiz Questions and Answers to study online certification courses. The Class 7 Science Notes App Download: Free Sound Waves Notes App for speed of sound, musical instruments, frequency and pitch, sound waves and echoes test prep for online education.

The Quiz: In water the speed of sound is; "Sound Waves" App APK Download with answers: 200 m/s, 100 m/s, 1500 m/s, and 2000 m/s to study online certification courses. Practice Speed of Sound MCQ Questions, download Kobo eBook (Free Sample) for free online classes.

Sound Waves Test Questions and Answers PDF Download: MCQ 24

MCQ: 116

In water the speed of sound is

  1. 100 m/s
  2. 200 m/s
  3. 1500 m/s
  4. 2000 m/s
MCQ: 117

An example of 'percussion' is

  1. drum
  2. piano
  3. saxophone
  4. violin
MCQ: 118

The number of sound waves sent per second is known as

  1. wave front
  2. wavelength
  3. frequency
  4. amplitude
MCQ: 119

Sound travels faster in liquids than air because

  1. liquid is more dense
  2. the particles in liquid are close
  3. the particles in liquids have less energy
  4. the particles in liquids collide less as compare to particles in air
MCQ: 120

Echoes are useful for bats because through it bats can detect

  1. size of the object
  2. position of the object
  3. size and position both
  4. state of the object

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Sound Waves Notes App (iOS & Android)

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7th Grade Science Notes App

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