What is Sound intensity: Definition and 117 Discussions

Sound intensity, also known as acoustic intensity, is defined as the power carried by sound waves per unit area in a direction perpendicular to that area. The SI unit of intensity, which includes sound intensity, is the watt per square meter (W/m2). One application is the noise measurement of sound intensity in the air at a listener's location as a sound energy quantity.Sound intensity is not the same physical quantity as sound pressure. Human hearing is sensitive to sound pressure which is related to sound intensity. In consumer audio electronics, the level differences are called "intensity" differences, but sound intensity is a specifically defined quantity and cannot be sensed by a simple microphone.
Sound intensity level is a logarithmic expression of sound intensity relative to a reference intensity.

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  1. C

    Sound Intensity- just need someone to check my work

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  2. I

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  3. M

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  4. G

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  5. G

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    Homework Statement The sound at a concert is measured to be 0.5 W/m^2. How many decibels is this? Homework Equations β = 10ln(I/I_0) I/I_0 = 10^(β/10) The Attempt at a Solution I_0 = 1*10^-12 W/m^2 I = 0.5 W/m^2 Therefore, β = 10ln(0.5/10^-12) β = 269.378 dB However, .5/10^12 = 10^(β/10)...
  6. H

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  7. D

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  8. D

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  9. O

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  10. P

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  11. T

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  12. P

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  13. C

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  14. T

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  15. H

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  16. N

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  17. G

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  18. E

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  19. L

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  20. L

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  21. M

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  22. R

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  23. 1

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  24. H

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  25. M

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  26. R

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  28. X

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  29. D

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  31. H

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  32. D

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  33. P

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  34. J

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  35. K

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  36. P

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  37. G

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  38. T

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  42. M

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  43. V

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  44. J

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  45. J

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  46. B

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  47. G

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  48. V

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  49. M

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  50. H

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