Loudness

Summary: Sounds made by volcanic eruptions are so loud that they can be heard thousands of miles away. Sound intensity determines loudness and is measured in decibels (dB). The decibel scale shown in Table 1 is not like a ruler. Each increase of 10 dB increases the intensity of sound by ten times. Table 1 Examples of sounds and their loudness in decibels. 0 dB. Tags: science student-book-7 physics Created: 2026-05-21 Last Updated: 2026-05-21

Loudness

Sounds made by volcanic eruptions are so loud that they can be heard thousands of miles away. Sound intensity determines loudness and is measured in decibels (dB). The decibel scale shown in Table 1 is not like a ruler. Each increase of 10 dB increases the intensity of sound by ten times. Table 1 Examples of sounds and their loudness in decibels. 0 dB.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Physics/Sound/2.3 Loudness and pitch.md), Physics section.