Chapter 30.6
Logarithmic scale: dB scale
What You'll Learn
Understand the decibel (dB) scale as a logarithmic measurement of sound intensity
Apply the intensity ratio formula to compare loudness between two sounds
Calculate how many times louder one sound is than another using decibel values
Interpret results when comparing sounds with higher and lower decibel measurements
What You'll Practice
1
Using the formula to find intensity ratios from given decibel measurements
2
Comparing sounds with different decibel levels (whispers, piano, etc.)
3
Calculating ratios that result in large and small decimal values
Why This Matters
The dB scale is used everywhere from audio engineering to environmental noise regulations. Understanding logarithmic scales helps you grasp why a small decibel increase means a huge jump in actual loudness, a concept that appears in many scientific fields and real-world applications.
Before You Start — Make Sure You Can:
This Unit Includes
2 Video lessons
Practice exercises
Skills
Logarithmic Scale
Decibels
Exponential Functions
Ratios
Sound Intensity
Applied Mathematics
OH Curriculum Aligned
