![]() ![]() The greater the intensity of a sound, the greater the deciBel rating. It it based on the number of powers of 10 greater that one sound's intensity is relative to the intensity of the threshold of hearing. Because of the enormous range of intensities that humans can hear, a logarithmic scale is used to express the intensity of a sound. From the threshold of hearing at 1.0 x 10 -12 W/m 2 to the threshold of pain at 1.0 W/m 2, the range of intensities is enormous. The human ear is capable of detecting a wide range of intensities. If a sound has a high deciBel level, then that sound also has a _. What property of a sound wave is described by its deciBel rating? The deciBel scale is the logarithmic scale used to express the intensity of various sounds. The deciBel scale gives an indication of a sound's _. Reading: The Physics Classroom, Sound and Music Unit, Lesson 2, Part b The student should be able to compare sounds in terms of their intensity and deciBel level. ![]() The student should be able to recognize the role of the deciBel system and understand its logarithmic nature. Assignment SM3: Sound Intensity and DeciBel Levels ![]()
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