What Is The Amount Of Energy A Sound Wave Carries Per Second Through A Unit Area?

The average amount of energy passing through a unit area per unit of time in a specified direction is called

the intensity of the wave

. As the amplitude of the sound wave increases, the intensity of the sound

What is the unit of intensity of sound?

The unit in general use is

the decibel (abbreviated db)

, equal to 0.1 bel. Thus the equation for relative intensities b in decibels may be written b = 10 log

₁₀

(I/I

₀

). It may be calculated from this equation that one decibel corresponds to a 26 percent change in intensity.

What is the amount of energy the wave carries per second through a unit of area?

The amount of energy a sound wave carries per second through a unit area is

its intensity

.

What property of sound depends on the energy and intensity of the sound wave quizlet?

✰

The loudness of a sound

depends on the energy and intensity of the sound wave. Loudness is another important property of sound.

What is the frequency for the above sound wave?

How do you find power per unit area?

Intensity is defined to be the power per unit area:

I=PA I = P A

and has units of W/m

²

.

How do you determine intensity?

Intensity is defined to be the power per unit area carried by a wave. Power is the rate at which energy is transferred by the wave. In equation form,

intensity I is I=PA I = P A

, where P is the power through an area A. The SI unit for I is W/m

²

.

How do you measure sound intensity?

Sound intensity can be found from the following equation:

I=Δp22ρvw I = Δ p 2 2 ρ v w Δ p

– change in pressure, or amplitude ρ – density of the material the sound is traveling through v

_w

– speed of observed sound. The larger your sound wave oscillation, the more intense your sound will be.

Does frequency affect sound intensity?

Are Intensity and Frequency of Sound the Same? The answer to this question is clearly no. You might suspect, that the higher the frequency, the louder we perceive a noise, but

frequency does not tell us how loud a sound is

. Intensity or loudness is the amount of energy of a vibration and is measured in decibels (dB).

What does a wave carry?

Light, heat, radio, and similar types of energy

are carried by a variety of waves in the ELECTROMAGNETIC SPECTRUM. Some energy waves need a medium, such as water or air, through which to travel. The medium moves back and forth as waves carry energy through it, but it does not actually travel along with the wave.

How can you increase the intensity of sound waves?

Greater amplitude waves have more energy and greater intensity, so they sound louder. As sound waves travel farther from their source, the more spread out their energy becomes. You can see how this works in the Figure below. As

distance from the sound source

increases, the area covered by the sound waves increases.

Which property of a sound wave is a function of the waves energy?

The vibration of a source sets the

amplitude

of a wave. It transmits energy into the medium through its vibration. More energetic vibration corresponds to larger amplitude.

What media can sound not travel through?

The Soundry: The Physics of Sound. The Speed of Sound: Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through

gases

, faster through liquids, and fastest through solids.

What are the 3 types of sound?

Sound waves fall into three categories:

longitudinal waves, mechanical waves, and pressure waves

.

Where sound waves Cannot travel?

Sound can not travel in

a vacuum

. A vacuum is an environment where liquids, gases, or solids of some sort are absent. If there are no objects then the sound waves do not have particles to vibrate, which means the sound waves can not travel.

Can we hear sound waves having frequency of about 100 000 Hz?

No,

we can't hear sound waves having

frequencyof about 100000 Hz because human has a range of 20hz to 20000hz.