Class 7 Courses

Chapter 23: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 23

Sound Waves Multiple Choice Questions (MCQs) PDF Download - 1

The Sound waves Multiple Choice Questions (MCQs) with Answers PDF, sound waves MCQs PDF Download e-Book Ch. 23-1 to study Grade 7 Science Course. Learn Sound Waves Quiz Questions and Answers to learn online classes courses. The Sound Waves MCQs App Download: Free learning app for speed of sound, all around sounds, sound absorption test prep for online school and college.

The Multiple Choice Question (MCQ Quiz): As compare to air, sound travels faster in; "Sound Waves" App Download (Free) with answers: Gases; Liquids; Vacuum; Fluids; to learn online classes courses. Solve Speed of Sound MCQ Questions, download Google eBook (Free Sample) for online school courses.

Sound Waves Questions & Answers PDF Download: MCQ Quiz 1

MCQ 1:

As compare to air, sound travels faster in

  1. liquids
  2. gases
  3. vacuum
  4. fluids
MCQ 2:

Sounds of vehicles, aircrafts and machines are called

  1. artificial sounds
  2. natural sounds
  3. noise
  4. normal sounds
MCQ 3:

Large empty room often sounds

  1. full
  2. hollow
  3. noisy
  4. repeating
MCQ 4:

For communication astronauts use radio because

  1. sound travels at very high speed in vacuum
  2. sound does not travel in vacuum
  3. vacuum repels sounds
  4. sound energy turns into light in vacuum
MCQ 5:

In concert halls, soft materials and carpets are used to

  1. increase sound waves
  2. absorb sound waves
  3. retract sound waves
  4. refract sound waves

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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)