Class 7 Courses

Chapter 23: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 23

Sound Waves Trivia Questions & Answers PDF Download - 24

The Sound waves Trivia Questions and Answers PDF (sound waves Quiz Answers PDF e-Book) download Ch. 23-24 to study Grade 7 Science Course. Practice Speed of Sound MCQ PDF, Sound Waves Quiz Questions and Answers to study online certification courses. The Sound Waves Trivia App Download: Free certification 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; 2000 m/s; to study online certification courses. Practice Speed of Sound MCQ Questions, download Kindle 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 App (Android & iOS)

Sound Waves App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (iOS & Android)

Earth Science App (Android & iOS)

Earth Science App (Android & iOS)

6th Grade Science App (Android & iOS)

6th Grade Science App (iOS & Android)