Logarithmic scale: dB scale

You’re one step closer to a better grade.

Learn with less effort by getting unlimited access, progress tracking and more.

Learn More
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).

      Become a Member to Get More!

      • Easily See Your Progress

        We track the progress you've made on a topic so you know what you've done. From the course view you can easily see what topics have what and the progress you've made on them. Fill the rings to completely master that section or mouse over the icon to see more details.

      • Make Use of Our Learning Aids

        Last Viewed
        Practice Accuracy
        Suggested Tasks

        Get quick access to the topic you're currently learning.

        See how well your practice sessions are going over time.

        Stay on track with our daily recommendations.

      • Earn Achievements as You Learn

        Make the most of your time as you use StudyPug to help you achieve your goals. Earn fun little badges the more you watch, practice, and use our service.

      • Create and Customize Your Avatar

        Play with our fun little avatar builder to create and customize your own avatar on StudyPug. Choose your face, eye colour, hair colour and style, and background. Unlock more options the more you use StudyPug.

      Topic Basics
      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})}