Logarithmic scale: dB scale

All in One Place

Everything you need for better grades in university, high school and elementary.

Learn with Ease

Made in Canada with help for all provincial curriculums, so you can study in confidence.

Instant and Unlimited Help

Get the best tips, walkthroughs, and practice questions.

0/2
?
Examples
Lessons
  1. A piano playing (65dB) is __________ times as loud as a whisper (30dB).
    1. A whisper (30dB) is __________ times as loud as a piano playing (65db).
      Topic Notes
      ?
      This time, we will bridge the gap between physics and mathematics by studying another application of logarithmic functions. We will learn about the dB Scale and explore how this logarithmic scale can be used to compare the loudness of sounds.
      dB scale (loudness of sounds)
      I1I2=10(dB1dB210) {{I_1}\over{I_2}} = 10 ^ {({{dB_1 - dB_2}\over10})}