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Sound waves may be generated with very little power at all.
A radio running as background sound may have 50mW delivered to the speaker.
But the speaker has a very low efficiency - typically of the order of 10% or so.
So the amount of sound delivered to the room will be only a few mW.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoSound intensity or acoustic intensity (I) is defined as the sound power (Pac) per unit area (A). The usual context is the noise measurement of sound intensity in the air at a listener's location as a sound energy quantity (measured in W/m²).
Our eardrums and microphone diaphragms are moved by sound pressure deviations (p), which is a sound field quantity (measured in pascals Pa). So we measure the sound with a SPL meter (Sound Pressure Level) in decibels.
Intensity is power per meter squared.
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Is frequency of a sound wave defined as the amount of energy passing through a unit area of the wave front in a unit of time?
The _______ of a sound wave is defined as the amount of energy passing through a unit area of the wave front in a unit of time. Correct answer=frequency
What does the amplitude of a wave tell you?
Amount of energy in each wave. e.g. Loudness of sound, or Brightness of light Also the displacement of a wave.
What is determined by the amount of energy a sound wave carries?
The answer is the rarefraction *Lexi Bodenhimer wrote this :*
The amount of energy a sound wave carries persecond through a unit area is its?
intensity
What type of waves has the least amount of energy?
The type of wave that has the least amount of energy is the longitudinal wave. In contrast, the wave with the most amount of energy is a seismic wave.
What is the amount of energy of a sound wave called?
Amplitude
What do you call the amount of energy in a sound wave?
Sound energy density or sound density is the sound energy per unit volume (according to Wikipedia).
Is frequency of a sound wave defined as the amount of energy passing through a unit area of the wave front in a unit of time?
The _______ of a sound wave is defined as the amount of energy passing through a unit area of the wave front in a unit of time. Correct answer=frequency
What is related to the amplitude of sound?
The amplitude of a sound wave is what we perceive as volume. It is the amount of energy "carried" within each period of the wave.
Is the amount of energy in a sound wave per unit of time and is also related to the loudness of a sound.?
Yes, it is.
What does the amplitude of a wave tell you?
Amount of energy in each wave. e.g. Loudness of sound, or Brightness of light Also the displacement of a wave.
What is determined by the amount of energy a sound wave carries?
The answer is the rarefraction *Lexi Bodenhimer wrote this :*
The amount of energy a sound wave carries persecond through a unit area is its?
intensity
WHAT of a sound wave is defined as the amount of energy passing through a unit area of the wave front in a unit of time?
frequency
What type of waves has the least amount of energy?
The type of wave that has the least amount of energy is the longitudinal wave. In contrast, the wave with the most amount of energy is a seismic wave.
What property of a wave is affected by the amount of energy transported?
Intensity of sound is affected. Intensity is the amount of sound energy passing in unit time. Higher intensity sounds can travel longer distances.
The amount of energy a sound wave carries per second through a unit area is its?
The number of sound waves per unit time is called the frequency of the wave.
