Physics of Sound
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Questions and Answers

Match the speed of sound with the correct medium:

Air = 330 m/sec Water = 1480 m/sec Muscle = 1580 m/sec Bone = 4080 m/sec

Match the term with its definition:

Compression = A local increase in pressure Rarefaction = A local decrease in pressure Frequency = The number of compressions or rarefactions per unit time Wavelength = The distance between successive compressions and rarefactions

Match the medium with the relative speed at which sound travels through it:

Solid = Fastest Liquid = Relatively slower Gas = Slowest Elastic material medium = Sound propagates through

Match the variable with its corresponding representation in the speed of sound formula $v_s = f\lambda$:

<p>v_s = Speed of sound f = Frequency \lambda = Wavelength 1/T = Frequency of a wave</p> Signup and view all the answers

Match the description with the correct concept:

<p>Sound wave = A pattern of disturbance caused by energy Mechanical disturbance = Propagation through an elastic material medium with definite velocity Wave transfer = Energy without transferring matter Equilibrium = State disturbed by sound</p> Signup and view all the answers

Match the mathematical representation with its concept:

<p>f=1/T = Frequency of a wave \lambda = c/f = Wavelength of a sound wave v_s = f\lambda = Speed of sound \lambda = Wavelength</p> Signup and view all the answers

Match the phenomenon with its appropriate description:

<p>Compression = Local increase in pressure Rarefaction = Local decrease in pressure Propagation = Movement of vibrations through a medium Disturbance = Caused by energy traveling away from the source</p> Signup and view all the answers

Match the type of wave with its characteristics:

<p>Sound wave = Vibration through a medium in the form of a mechanical wave Energy wave = Transfers energy without transferring matter Mechanical wave = Disturbance from equilibrium through an elastic medium Vibration = Propagation through solids, liquids, or gases</p> Signup and view all the answers

Study Notes

General Properties of Sound

  • A sound wave is a pattern of disturbance caused by energy traveling away from the source of the sound, transferring energy without transferring matter.
  • Sound is a mechanical disturbance that propagates through an elastic material medium with a definite velocity, causing a local increase (compression) or decrease (rarefaction) of pressure relative to atmospheric pressure.

Characteristics of Sound Waves

  • Sound is a vibration that propagates through a medium in the form of a mechanical wave, which can be through a solid, liquid, or gas.
  • The speed of sound varies in different media, with the fastest speed in solids, relatively slower in liquids, and slowest in gases.

Speed of Sound in Different Media

  • Air: 330 m/sec
  • Water: 1480 m/sec
  • Muscle: 1580 m/sec
  • Bone: 4080 m/sec

Speed and Wavelength of Sound

  • The speed of sound is given by the formula: $$v_s = f\lambda$$
  • Where f is the frequency and λ is the wavelength of the sound waves.

Frequency of Sound Waves

  • The number of rarefactions and compressions per unit time is the frequency of a sound wave.
  • Frequency is mathematically represented as: $$f = 1/T$$

Wavelength of Sound Waves

  • The distance between successive compressions and rarefactions is the wavelength of a sound wave.
  • Wavelength is mathematically represented as: $$\lambda = c/f$$

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Description

Learn about the fundamental properties of sound, including sound waves, energy transfer, and propagation through mediums.

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