Sound: Loudness and Intensity

The video tutorial explains why the loudness of sound varies, using examples like loud music and a flowing stream. It highlights that sound levels depend on the energy in sound waves, illustrated by examples such as slamming a door or swinging a bat. The tutorial also introduces decibels as the unit for measuring sound intensity, providing examples of different sound levels, such as a chainsaw and falling leaves. It warns about the dangers of sounds over 120 decibels, which can cause hearing damage, emphasizing the importance of ear protection.

What is the unit used to measure the intensity of sound?

What are the potential risks of exposure to sounds greater than 120 decibels?