Sound Waves and Noise MCQ App – Class 7 Science MCQ e-Book PDF

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Sound Waves and Noise Multiple Choice Questions with Answers – PDF Download

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The Sound waves and noise Multiple Choice Questions (MCQ Quiz) with Answers PDF (Sound Waves and Noise MCQ PDF e-Book) download to learn Class 7 Science Tests. Study Sound Waves Multiple Choice Questions and Answers (MCQs), Sound Waves and Noise quiz answers PDF to learn online classes courses. Download the Sound Waves and Noise MCQ App – Free Class 7 Science App to learn sound absorption, all around sounds, speed of sound test prep for online education programs.

The MCQ: Sound is measured by units that are called; "Sound Waves and Noise MCQs" App Download [Free] with answers: hertz (hz), decibels (db), meters (m), and pascal (pa) to learn online classes courses. Solve Sound Waves Quiz Questions, download Apple Book (Free Chapter) for elementary school graduation certificate.

Sound Waves and Noise MCQs PDF Download – Prep Test

MCQ 1: Sound is measured by units that are called:

  1. Hertz (Hz)
  2. Decibels (dB)
  3. Meters (m)
  4. Pascal (Pa)

MCQ 2: 20 dB has hundred times more energy than:

  1. 10 dB
  2. 0 dB
  3. 5 dB
  4. 2 dB

MCQ 3: 'Eardrum' bursts at:

  1. 40 dB
  2. 80 dB
  3. 160 dB
  4. 320 dB

MCQ 4: The level of sound of normal conversation is:

  1. 10 dB
  2. 20 dB
  3. 50 dB
  4. 60 dB

MCQ 5: Loud noise can:

  1. damage our ears
  2. make us ill
  3. disturb our sleep
  4. interrupt conversation

Class 7 Science MCQs App & e-Book – Sound Waves and Noise Practice Tests

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