Which of the following statements are TRUE of sound intensity and decibel levels? Identify all that apply. The intensity of a sound wave has units of Watts/meter. When a sound wave is said to be intense, it means that the particles are vibrating back and forth at a high frequency. Intense sounds are characterized by particles of the medium vibrating back and forth with a relatively large amplitude. Intense sounds are usually perceived as loud sounds. The ability of an observer to hear a sound wave depends solely upon the intensity of the sound wave. From the least intense to the most intense, humans have a rather narrow range of intensity over which sound waves can be heard. The intensity of sound which corresponds to the threshold of pain is one trillion times more intense than the sound which corresponds to the threshold of hearing. Two sounds which have a ratio of decibel ratings equal to 2.0. This means that the second sound is twice as intense as the first sound. Sound A is 20 times more intense than sound B. So if Sound B is rated at 30 dB, then sound A is rated at 50 dB. Sound C is 1000 times more intense than sound D. So if sound D is rated at 80 dB, sound C is rated at 110 dB. A machine produces a sound which is rated at 60 dB. If two of the machines were used at the same time, the decibel rating would be 120 dB. Intensity of a sound at a given location varies directly with the distance from that location to the source of the sound. If the distance from the source of sound is doubled then the intensity of the sound will be quadrupled. If the distance from the source of sound tripled, then the intensity of the sound will be increased by a factor of 6.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Concept explainers

Question

Which of the following statements are TRUE of sound intensity and decibel levels? Identify all that apply.

The intensity of a sound wave has units of Watts/meter.
When a sound wave is said to be intense, it means that the particles are vibrating back and forth at a high frequency.
Intense sounds are characterized by particles of the medium vibrating back and forth with a relatively large amplitude.
Intense sounds are usually perceived as loud sounds.
The ability of an observer to hear a sound wave depends solely upon the intensity of the sound wave.
From the least intense to the most intense, humans have a rather narrow range of intensity over which sound waves can be heard.
The intensity of sound which corresponds to the threshold of pain is one trillion times more intense than the sound which corresponds to the threshold of hearing.
Two sounds which have a ratio of decibel ratings equal to 2.0. This means that the second sound is twice as intense as the first sound.
Sound A is 20 times more intense than sound B. So if Sound B is rated at 30 dB, then sound A is rated at 50 dB.
Sound C is 1000 times more intense than sound D. So if sound D is rated at 80 dB, sound C is rated at 110 dB.
A machine produces a sound which is rated at 60 dB. If two of the machines were used at the same time, the decibel rating would be 120 dB.
Intensity of a sound at a given location varies directly with the distance from that location to the source of the sound.
If the distance from the source of sound is doubled then the intensity of the sound will be quadrupled.
If the distance from the source of sound tripled, then the intensity of the sound will be increased by a factor of 6.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions