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Examples of Common Sounds and Their Decibel Levels
The decibel (dB) scale illustrates the intensity of everyday sounds, starting from the human hearing threshold at 0 dB. Quieter sounds include rustling leaves (20 dB), a whisper (30 dB), soft music (40 dB), and a refrigerator (45 dB). A normal conversation registers at about 60 dB. Louder sounds that can pose a risk to hearing include heavy city traffic (85 dB), a motorcycle (95 dB), and earbuds at maximum volume (105 dB). Extremely loud sounds include a music concert (120 dB), jets (130 dB), and firearms, which can reach 150 dB.
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Examples of Common Sounds and Their Decibel Levels
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An audio engineer at a concert increases the sound level from 70 dB to 90 dB. Which statement best analyzes the change in the sound's physical intensity and how it is perceived by the audience?
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In a professional workplace safety environment, understanding sound levels is critical for protecting employee hearing. Match the following sound intensity terms and values to their correct descriptions.
A safety officer at a manufacturing plant is monitoring noise levels to ensure worker safety. He records the sound intensity in decibels (dB), a unit that is based on a(n) ____ scale to account for the massive range of sounds human ears can perceive.
Occupational Noise Safety Thresholds