C17 - Sound Waves

0.0(0)
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/11

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

12 Terms

1

Sound waves

disturbance in the air caused by vibrations

  • compression: high pressure phase

  • rarefaction: low pressure phase

2

s(x,t)

s(x,t) = smaxcos(kx-ωt)

3

∆P(x,t)

∆P(x,t) = ∆Pmaxsin(kx-ωt)

  • ∆Pmax = Bksmax = ρωvsmax

4

Vsound (general medium)

5

Vsound(ºC)

6

Vsound (in various mediums)

  • air - (343 m/s)

  • water - (1493 m/s)

  • seawater - (1533 m/s)

7

Poweravg

8

Intensity

Asphere = 4πr2

<img src="https://knowt-user-attachments.s3.amazonaws.com/101b87e2-4432-4201-a929-717ad1550454.png" data-width="100%" data-align="center"><p>A<sub>sphere</sub> = 4<span style="color: var(--YLNNHc)">πr<sup>2</sup></span></p>
9

Aspects of sound waves

  • Spherical waves

  • Wavefront

  • Rays

10

Decibels

I0 = 1 × 10-12

11

General Doppler-shift eqn

v = speed of sound

vo & vs = velocity TOWARDS each other

12

Shock waves

  • sinθ = v/vs

  • mach # = vs/v

Explore top notes

Explore top flashcards