Quick check: Is this sound too loud? Quiz for kids

📚 Quick Study Guide

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• Sound Measurement: Sound loudness is measured in decibels (dB).
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• Safe Levels: Sounds above 85 dB can be harmful over extended periods.
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• Distance Matters: The closer you are to a sound source, the louder it seems.
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• Common Sounds: Normal conversation is around 60 dB, while a loud concert can reach 120 dB!
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• Protect Your Ears: Use earplugs in noisy environments to protect your hearing.
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• Adding Sound Sources: Combining two identical sound sources increases the sound level by 3 dB.

🧪 Practice Quiz

1. What unit is used to measure the loudness of a sound?
1. Amps
2. Volts
3. Decibels
4. Watts
2. What sound level (in decibels) can be harmful with extended exposure?
1. 60 dB
2. 70 dB
3. 80 dB
4. 85 dB
3. If you move closer to a sound source, what happens to the loudness?
1. It decreases.
2. It stays the same.
3. It increases.
4. It disappears.
4. What is the approximate decibel level of normal conversation?
1. 30 dB
2. 60 dB
3. 90 dB
4. 120 dB
5. What should you use in a noisy environment to protect your hearing?
1. Sunglasses
2. Earplugs
3. Gloves
4. A Hat
6. If you have one loudspeaker producing 80 dB, and you add another identical loudspeaker playing the same sound, approximately what's the new sound level?
1. 80 dB
2. 81 dB
3. 83 dB
4. 160 dB
7. Which of the following is the loudest?
1. Whispering
2. Normal Conversation
3. A lawnmower
4. A rocket launch