a) How much louder is a 90 dB sound compared to a 50 dB sound? b) Based on the chart describe the sound level (give example) at 50 dB and c) at 90 dB

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a) How much louder is a 90 dB sound compared to a 50 dB sound? b) Based on the chart describe the sound level (give example) at 50 dB and c) at 90 dB.
### Understanding Noise Levels: A Complete Guide

Noise levels are measured in decibels (dB), and it's important to understand the impact they can have on our hearing. This guide provides a visual representation of various noise levels and their corresponding sources.

#### Decibel Chart and Key Examples

1. **20 dB**
   - **Sources**: Leaves rustling, Whisper
   - **Comparison**: Ticking watch

2. **30 dB - 50 dB**
   - **30 dB**: Average room noise
   - **50 dB**: Background music

3. **60 dB - 70 dB**
   - **60 dB**: Average office noise
   - **70 dB**: Noticeable indoor sounds (e.g., conversation)

4. **75 dB - 90 dB**
   - **75 dB**: Landscaping equipment (from inside a house)
   - **80 dB**: City traffic (from inside a car), Noisy restaurant
   - **85 dB**: Inside an airplane, Electric vacuum
   - **90 dB**: Food processor, DJ'd school dance, Crowing rooster

5. **95 dB - 100 dB**
   - **95 dB**: Motorcycle, Automatic hand dryer
   - **100 dB**: Hairdryer

6. **105 dB - 110 dB**
   - **105 dB**: Approaching subway train, Car horn at 16 feet, Pro sports games
   - **110 dB**: Nightclubs and bars, Gas-powered leaf blower, Ice cream truck

7. **115 dB - 120 dB**
   - **115 dB**: Rock or pop concert, Siren
   - **120 dB**: Trombone, Dog barking in ear, Ice cream truck

8. **125 dB - 140 dB**
   - **125 dB**: Jackhammer
   - **135 dB**: Gunshot
   - **140 dB**: Jet engine from 100 yards

#### Safe and Harmful Noise Levels

- **Safe Levels**: Sounds at or below 70 dB are generally considered safe for hearing.
- **Harmful Levels**: Prolonged exposure to sounds above 70 dB can potentially harm hearing over time.

It's crucial to be aware of
Transcribed Image Text:### Understanding Noise Levels: A Complete Guide Noise levels are measured in decibels (dB), and it's important to understand the impact they can have on our hearing. This guide provides a visual representation of various noise levels and their corresponding sources. #### Decibel Chart and Key Examples 1. **20 dB** - **Sources**: Leaves rustling, Whisper - **Comparison**: Ticking watch 2. **30 dB - 50 dB** - **30 dB**: Average room noise - **50 dB**: Background music 3. **60 dB - 70 dB** - **60 dB**: Average office noise - **70 dB**: Noticeable indoor sounds (e.g., conversation) 4. **75 dB - 90 dB** - **75 dB**: Landscaping equipment (from inside a house) - **80 dB**: City traffic (from inside a car), Noisy restaurant - **85 dB**: Inside an airplane, Electric vacuum - **90 dB**: Food processor, DJ'd school dance, Crowing rooster 5. **95 dB - 100 dB** - **95 dB**: Motorcycle, Automatic hand dryer - **100 dB**: Hairdryer 6. **105 dB - 110 dB** - **105 dB**: Approaching subway train, Car horn at 16 feet, Pro sports games - **110 dB**: Nightclubs and bars, Gas-powered leaf blower, Ice cream truck 7. **115 dB - 120 dB** - **115 dB**: Rock or pop concert, Siren - **120 dB**: Trombone, Dog barking in ear, Ice cream truck 8. **125 dB - 140 dB** - **125 dB**: Jackhammer - **135 dB**: Gunshot - **140 dB**: Jet engine from 100 yards #### Safe and Harmful Noise Levels - **Safe Levels**: Sounds at or below 70 dB are generally considered safe for hearing. - **Harmful Levels**: Prolonged exposure to sounds above 70 dB can potentially harm hearing over time. It's crucial to be aware of
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