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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 practice Grade 7 Science Tests. Study Sound Waves Multiple Choice Questions and Answers (MCQs), Sound Waves and Noise quiz answers PDF to learn online classes courses. The Sound Waves and Noise MCQ App: Free download learning app for sound absorption, all around sounds, speed of sound test prep for online education programs.

The MCQ: 20 dB has hundred times more energy than; "Sound Waves and Noise MCQs" App Download (Free) with answers: 10 dB; 0 dB; 5 dB; 2 dB; to learn online classes courses. Solve Sound Waves Quiz Questions, download Apple eBook (Free Sample) for elementary school graduation certificate.

## Sound Waves and Noise MCQs: Questions and Answers

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

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Sound Waves and Noise App (Android & iOS)

7th Grade Science App (iOS & Android)

Earth Science App (Android & iOS)

6th Grade Science App (iOS & Android)