Class 7 Courses

Chapter 23: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 23

Sound Waves Quiz Questions & Answers PDF Download - 7

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The Quiz MCQ: Singing and talking are the; "Sound Waves" App (iOS & Android) with answers: Natural sounds; Artificial sounds; Man-made sounds; Sounds made electronically; to learn online schools courses. Study All Around Sounds MCQ Questions, download Amazon eBook (Free Sample) for online teaching certification programs.

Sound Waves Exam Questions and Answers PDF Download: Test 7

MCQ 31:

Singing and talking are the

  1. artificial sounds
  2. natural sounds
  3. man-made sounds
  4. sounds made electronically
MCQ 32:

In large empty rooms, even a click keeps on

  1. increasing
  2. decreasing
  3. repeating
  4. coming
MCQ 33:

Sounds of thunder and horn of lorries are known as

  1. loud sounds
  2. soft sounds
  3. high pitched sounds
  4. low pitched sounds
MCQ 34:

Sound is created by our vocal cord due to

  1. air in lungs
  2. cilia in the throat
  3. vibration in throat
  4. vibration in lungs
MCQ 35:

The normal value of decibel that our ears can detect is

  1. -20
  2. 0
  3. 20
  4. 40

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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)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (iOS & Android)