Decibels measure sound(a) intensity(b) frequency(c) loudness level(d) all of the above (8.5)

8. Sound Intensity The table lists intensities of sounds as multiples of a basic reference sound. A scale similar to the decibel scale is used to measure the sound intensity. Sound Intensity Scale Value 316 25.0 500 27.0 750 28.75 2000 33.0 5000 37.0

The sound intensity at a person’s seat in a concert hall is 8.010–5 W m–2. Calculate thesound intensity level, in decibels, at the seat. (Use 1.010–12 W m–2 as the reference level.)

What is the perceived intensity of sound?a) pitchb) hertzc) decibeld) timbree) loudness

Select the correct answer from the drop-down menu.The formula 𝛽=10⁢log⁡(𝐼𝐼0) is used to find the sound level, 𝛽 , in decibels (dB), of a sound with an intensity of I. In the formula, 𝐼0 represents the smallest sound intensity that can be heard by the human ear (approximately 10-12watts/meter2 ).The sound level on a busy street is 70 dB. What is the sound intensity on the street?The sound intensity on the busy street is watts/meter2 .

Which of the following is an acceptable operational definition for an auditory threshold?Question 1Answera.The lowest intensity of a sound, as measured in decibels, at which a participant reports hearing the sound 50% of the timeb.The lowest intensity of a sound, as measured in decibels, at which a participant always reports hearing the soundc.The lowest intensity of a sound, as measured in decibels, at which 50% of the participants report hearing the sound.d.The lowest intensity of a sound, as measured in decibels, at which every participant in an experiment reports hearing the sound