A cello is similar to a violin, with 4 longer strings and a larger body. The highest frequency string is A3 at 220 Hz (one octave below A440 on an equally tempered scale). The string is often made of tungsten to give a tough dense material with a mass of about 1.5 grams per meter. What tension would you apply to tune this string to a fundamental at 220 Hz if it is 0.695 meters long? Remember that the string is fixed at both ends. about 140 N about 35 N about 140,000 N about 1.4 N
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 cello is similar to a violin, with 4 longer strings and a larger body. The highest frequency string is A3 at 220 Hz (one octave below A440 on an equally tempered scale). The string is often made of tungsten to give a tough dense material with a mass of about 1.5 grams per meter. What tension would you apply to tune this string to a fundamental at 220 Hz if it is 0.695 meters long? Remember that the string is fixed at both ends.
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about 140 N |
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about 35 N |
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about 140,000 N |
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about 1.4 N |
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