Explain how intensty sound and energy are related?

Answer 1

Sound intensity I is a measure in W/m² that is a energy quantity of sound.

Loudness is the quality of a sound that is the primary psychological correlate of physical strength. Better use the sound pressure in pascals (Pa = N/m²) because this sound field quantity makes the effect of moving our ear drums.

Measuring intensity and feeling the loudness does not relate good. Perceived loudness varies from person to person and cannot be measured this way.

A A-weighting filter attempts to adjust sound measurements to correspond to loudness as perceived by the average human.

Units used trying to measure loudness are Sone (loudness N) and Phon (loudness level L).

Answer 2

Our ear drums with the ear/brain system are moved only by sound pressure motions. The sound pressure is the effect, but the sound power (sound intensity) of the source is the cause.

The anwer is not so easy like it looks.

Scroll down to related links and look at "Subjectivly perceived loudness ".

Answer 3

The word loudness belongs to psycho acoustics and tells how we feel this sound, that is not measuring the sound like we do with a sound pressure meter. Listening to music means motion to the ear drums. Only sound pressure moves the ear drums. The energy or the sound intensity is much less important here. Sound intensity belongs more to the noise fighters.

Answer 4

In physics, intensity (watts/m²) is a measure of the time-averaged energy flux. The word "intensity" here is not synonymous with "strength", "amplitude", or "level", as it sometimes is in colloquial speech. To find the intensity, take the energy density, that is, the energy per unit volume, and multiply it by the velocity at which the energy is moving. The resulting vector has the units of power divided by area - i.e. W/m². In physics, energy (Joules) is a scalar that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law. Different forms of energy include kinetic, potential, thermal, gravitational, sound, light, elastic, and electromagnetic energy. The forms of energy are often named after a related force. Any form of energy can be transformed into another form, but the total energy always remains the same.

Answer 5

First you must understand the concept of power. It refers to the rate at which energy is transferred or converted. The SI unit for energy is the joule; the unit for power is the joule/second, which has the special name watt. Intensity means how concentrated this power is - in other words, power per unit area (of a cross section). The SI units are watts / square meter.In the case of a sound, other things (and especially the frequency) being equal, a more intense sound is perceived as louder.

Answer 6

Sound and energy are related in that both sound and energy travel in waves. Energy and sound can both be directed, as well.

Answer 7

Sound intensity is a sound energy quantity. Intensity is very close related to energy.

Sound pressure is a sound field quantity. That is close related to the amplitude.

Answer 8

Intensity of sound is related to soft and loud sound. Intensity is directly proportional to the square of the amplitude.