Class 7 Courses

Chapter 23: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 23

Sound Waves Quiz Questions & Answers PDF Download - 31

The Sound waves Quiz Questions and Answers PDF (sound waves Quiz PDF e-Book) download Ch. 23-31 to learn Grade 7 Science Course. Solve Ultrasound MCQs PDF, Sound Waves Quiz Questions and Answers to learn e-learning courses. The Sound Waves Quiz App Download: Free learning app for ultrasound, speed of sound, waves of energy, sound waves and echoes, musical instruments test prep for online schools.

The Quiz: The medical use of ultrasound is to detect; "Sound Waves" App (iOS, Android) with answers: Cancer cells; Baby; Infected parts of the body; Damaged organs; to learn e-learning courses. Study Ultrasound MCQ Questions, download Amazon eBook (Free Sample) for elementary school graduation certificate.

Sound Waves Exam Questions and Answers PDF Download: Test 31

MCQ 151:

The medical use of ultrasound is to detect

  1. baby
  2. cancer cells
  3. infected parts of the body
  4. damaged organs
MCQ 152:

The exact speed of sound depends upon

  1. pressure
  2. temperature
  3. density
  4. mass
MCQ 153:

The wave with compressions and rarefactions is known as

  1. transverse waves
  2. longitudinal waves
  3. latitudinal waves
  4. horizontal waves
MCQ 154:

Ships use echolocation to measure the

  1. size of fish
  2. density of water
  3. depth of water
  4. area of ocean
MCQ 155:

An example of 'percussion' is

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

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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)

8th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)

Earth Science App (Android & iOS)

Earth Science App (iOS & Android)