loudness.
loudness
We can perceive different sound volumes because sound waves have differing amplitudes.
The speed of sound is slower at higher altitudes because the air temperature is lower. The greater the amplitude, the louder the sound. It is your perception of the energy of a sound. What two factors affect the loudness of a sound
As sound travels, the waves spread out and lose energy. Since the energy of a sound wave is proporitonal to it's total energy, losing energy causes the frequency to decrease. Pitch is human perception of frequenct, so the pitch drops as the waves propagate.
Sound intensity or acoustic intensity is defined as the sound per unit area. The usual context is the noise measurement of sound intensity in the air at a listener's location as a sound energy quantity.
loudness
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Its volume or how loud it is.
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The human perception of sound is called audiation. It refers to how our brains interpret and process sound waves into meaningful sounds and music.
We can perceive different sound volumes because sound waves have differing amplitudes.
The pich of a sound is the perception of its freqency.
The speed of sound is slower at higher altitudes because the air temperature is lower. The greater the amplitude, the louder the sound. It is your perception of the energy of a sound. What two factors affect the loudness of a sound
As sound travels, the waves spread out and lose energy. Since the energy of a sound wave is proporitonal to it's total energy, losing energy causes the frequency to decrease. Pitch is human perception of frequenct, so the pitch drops as the waves propagate.
Sound is a change of energy status from one type to another , but of a physical nature. when a jet aeroplane flies fast enough to break the speed of sound it causes shock waves in the air by compression, and changes this into a sound wave / noise . so this is a physical change , not chemical.
Sound intensity is a property of sound.
Sound intensity is a property of sound.