A vibrating guitar string makes very little sound if it is not mounted on the guitar body. Why does the sound have greater intensity if the string is attached to the guitar body? (a) The string vibrates with more energy.(b) The energy leaves the guitar more rapidly. (c) The sound power is spreadover a larger area at the listener’s position. (d) The sound power is concentrated over a smaller area at the listener’s position. (e) The speed of sound is higher in the material of the guitar body. (f) None of these answers is correct.
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.
A vibrating guitar string makes very little sound if it is not mounted on the guitar body. Why does the sound have greater intensity if the string is attached to the guitar body? (a) The string vibrates with more energy.
(b) The energy leaves the guitar more rapidly. (c) The sound power is spread
over a larger area at the listener’s position. (d) The sound power is concentrated over a smaller area at the listener’s position. (e) The speed of sound is higher in the material of the guitar body. (f) None of these answers is correct.
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