3. A source of spherical sound waves generates a constant tone with a frequency of 440 Hz. At a distance of 5.00 m from the source the intensity of the sound is measured to be 1.25 x 104 w/m². a. At some further distance away the intensity is measured to be less such that the decibel level difference is 17.0 dB with respect to being 5.00 m from the source. How far from the source is this location? b. How many times more intense is the sound when at a distance of 4.00 m from the source relative to being at 5.00 m from the source?
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
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