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Speed of sound

The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. More simply, the speed of sound is how fast vibrations travel. At 20 °C (68 °F), the speed of sound in air is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or 1 km in 2.92 s or one mile in 4.69 s. It depends strongly on…

History, Measurement & Standards

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Key facts & relationships

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Acoustic impedance
Z
Audio frequency
AF
Characteristic
Symbols
Particle displacement
δ
Particle velocity
v, SVL
Sound energy
W

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Overview

History

Compression and shear waves

Equations

Dependence on the properties of the medium

Altitude variation and implications for atmospheric acoustics

Details

Effect of frequency and gas composition

Mach number

Experimental methods

Non-gaseous media

Mars

Gradients

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Map overview Semantic statistics

Speed of sound

Nodes178
Edges177
Triples130
Avg. degree1.99
Density0.011236
Components1

How this topic connects Entity context

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Speed of sound

Top relations

related to External links · 18
Speed of sound → Acoustic Properties, Air, February, LaboratoryDid Sound Once Travel, Light Speed, Measure, Not Air PressureProperties, Sea, Sound, Sound Archived, Sound CalculatorCalculation, SoundHow, Speed, Standard Atmosphere, Temperature Matters, TemperatureSpeed, Various Materials Including, Wayback MachineDiscovery
has method · 16
Speed of sound → Church, Derham, England, He, In, Isaac Newton, It, Kundt's, Lastly, Modern, On, St Laurence, The, This, Upminster, William Derham
related to history · 14
Speed of sound → Academy, Aristotle, Clément-Desormes, Euler, In Traité, Lagrange, Newton, Peripatos, Pierre-Simon Laplace, Principia, Sir Isaac Newton's, The, The Pythagorean Archytas, This
has effect · 7
Speed of sound → C/km, For, Higher, Since, The, This, Wind
related to Gradients · 7
Speed of sound → In, Just, SOFAR, The, This, Thus, When
measured by · 6
Speed of sound → Chemical, Harlow, Hz, Smith, STP, The
related to Altitude variation and implications for atmospheric acoustics · 6
Speed of sound → Details, Earth's, For, In, Since, The
related to Equations · 5
Speed of sound → For, Laplace, Latin, Newton, The
related to Mach number · 5
Speed of sound → Aircraft, At, Mach, Pitot, The
related to Speed of sound in ideal gases and air · 5
Speed of sound → For, It, Laplace, Newton, Thus

Important terminology Word statistics

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Important terminology

speed sound temperature air pressure waves gas density shear solids gases wave compression displaystyle time frequency effect ideal found water

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Speed of soundAcoustic impedanceZ1.00infobox
Speed of soundAudio frequencyAF1.00infobox
Speed of soundCharacteristicSymbols1.00infobox
Speed of soundParticle displacementδ1.00infobox
Speed of soundParticle velocityv, SVL1.00infobox
Speed of soundSound energyW1.00infobox
Speed of soundSound energy densityw1.00infobox
Speed of soundSound exposureE, SEL1.00infobox
Speed of soundSound intensityI, SIL1.00infobox
Speed of soundSound powerP, SWL, LWA1.00infobox
Speed of soundSound pressurep, SPL, LPA1.00infobox
Speed of soundTransmission lossTL1.00infobox
Speed of soundis adistance travelled per unit of time by a sound wave as it propagates through an elastic medium0.90text
Speed of soundis afunction of sound frequency0.90text
Speed of soundis atemperature0.90text

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