From Wikipedia, the free encyclopedia
.^ Sound can travel through any medium, but it cannot travel through a vacuum.- The Nature of Sound - The Physics Hypertextbook 14 January 2010 20:24 UTC physics.info [Source type: Academic]
^ The speed of sound in a medium is given by: .- The Sounds of Teacups and Glasses 14 January 2010 20:24 UTC www.drphysics.com [Source type: FILTERED WITH BAYES]
^ Sound waves do not travel at the same speed through gases, liquids, and solids.- NASA Quest > Aerospace Team Online 14 January 2010 20:24 UTC quest.arc.nasa.gov [Source type: Original source]
.^ Speed in feet per second .
^ The SI unit of speed and velocity is the meter per second .- Speed & Velocity - The Physics Hypertextbook 14 January 2010 20:24 UTC physics.info [Source type: FILTERED WITH BAYES]
^ Speed in meters per second .
.^ One meter per second is 3.6 kilometers-per-hour and 2.2374 miles-per-hour.- 3D sound effect for 3D Rad 14 January 2010 20:24 UTC www.3drad.com [Source type: Reference]
^ Sound waves travel one mile in about five seconds.- Snowmobiling Fact book: Sound- ISMA (International Snowmobile Manufacturers Association)-Information for snowmobilers: snowmobiling trails and safety; facts and trends 14 January 2010 20:24 UTC www.snowmobile.org [Source type: FILTERED WITH BAYES]
^ That means it travels about one mile in five seconds!- NASA Quest > Aerospace Team Online 14 January 2010 20:24 UTC quest.arc.nasa.gov [Source type: Original source]
.^ The air pressure and the density of air (air density) are proportional to each other at the same temperature.- Speed of sound in air and the temperature calculator air pressure - table density of air calculation acoustic impedance air density sea level velocity ideal gas 20 degrees or 21 degrees Celsius C - sengpielaudio Sengpiel Berlin 14 January 2010 20:24 UTC www.sengpielaudio.com [Source type: Academic]
^ The speed of sound is dependent on the density of the air and the density of the air is dependent on the temperature of the air.- Calculate Speed of Sound wave - Online Physics Calculators 14 January 2010 20:24 UTC www.easycalculation.com [Source type: Academic]
^ Notice: Air pressure p and air density ρ are not the same.- Speed of sound in air and the temperature calculator air pressure - table density of air calculation acoustic impedance air density sea level velocity ideal gas 20 degrees or 21 degrees Celsius C - sengpielaudio Sengpiel Berlin 14 January 2010 20:24 UTC www.sengpielaudio.com [Source type: Academic]
.^ The speed of sound for various gases at 0° C: .- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
^ To demonstrate the dependance of the velocity of sound upon the density of the carrier gas.- Wa-5 Speed of Sound (Density Dependence) : Wave properties : Wave motion : Home : Physics Lecture Demo : The University of Melbourne 14 January 2010 20:24 UTC lecturedemo.ph.unimelb.edu.au [Source type: Academic]
^ The speed of sound in a gas is a function of its temperature.- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
.^ Sound Speed [at 20°C in dry air] .- Atmospheric Science Program, UC Davis 14 January 2010 20:24 UTC atm.ucdavis.edu [Source type: Academic]
^ What is the speed of sound in air?- Speed of sound in air and the temperature calculator air pressure - table density of air calculation acoustic impedance air density sea level velocity ideal gas 20 degrees or 21 degrees Celsius C - sengpielaudio Sengpiel Berlin 14 January 2010 20:24 UTC www.sengpielaudio.com [Source type: Academic]
^ In air, the speed of sound at 20C is 343ms -1 .- Speed of Sound - DiracDelta Science & Engineering Encyclopedia 14 January 2010 20:24 UTC www.diracdelta.co.uk [Source type: Academic]
.^ Measurement at speed of sound .- ISA | Measurement at speed of sound 14 January 2010 20:24 UTC www.isa.org [Source type: Academic]
^ It is the specific number used to measure Film Speed .
^ What causes the SPEED of a sound wave?
.^ Sound Speed [at 20°C in dry air] .- Atmospheric Science Program, UC Davis 14 January 2010 20:24 UTC atm.ucdavis.edu [Source type: Academic]
^ Sound can also travel through solids and liquids, not just gases.- Lesson 49: Properties of Sound 14 January 2010 20:24 UTC www.studyphysics.ca [Source type: FILTERED WITH BAYES]
^ Reflecting Excellence Kids ask: Why does sound travel faster in water?- Daily Herald | Kids ask: Why does sound travel faster in water? 14 January 2010 20:24 UTC www.dailyherald.com [Source type: General]
.^ This is called a longitudinal or compression wave .- Lab III-9 Waves: Speed of Sound 14 January 2010 20:24 UTC web.me.com [Source type: FILTERED WITH BAYES]
^ We also restrict ourselves to sound in a fluid medium, which cannot support shear stresses.- Sound Waves 14 January 2010 20:24 UTC mysite.du.edu [Source type: FILTERED WITH BAYES]
^ Sound is a longitudinal wave.- Lesson 49: Properties of Sound 14 January 2010 20:24 UTC www.studyphysics.ca [Source type: FILTERED WITH BAYES]
.^ These two waves have the same frequency but different amplitudes.- NOAA Ocean Explorer: Sound in the Sea: Background 14 January 2010 20:24 UTC oceanexplorer.noaa.gov [Source type: FILTERED WITH BAYES]
^ These two waves have the same amplitude but different frequencies.- NOAA Ocean Explorer: Sound in the Sea: Background 14 January 2010 20:24 UTC oceanexplorer.noaa.gov [Source type: FILTERED WITH BAYES]
^ High speed ferries operate under the same right-of-way rules that all boats must obey. Recreational boaters that may have forgotten these rules should relearn them in then interest of total boating safety.- Home Page 14 January 2010 20:24 UTC fastferryinfo.org [Source type: FILTERED WITH BAYES]
.^ A medium is a material (solid, liquid or gas) which a wave travels through.- 03.04.04: The Physics of Sound: How We Produce Sounds 14 January 2010 20:24 UTC www.yale.edu [Source type: General]
^ The density of the medium will affect the speed the wave will travel at.- 03.04.04: The Physics of Sound: How We Produce Sounds 14 January 2010 20:24 UTC www.yale.edu [Source type: General]
^ B y e r i n M c n a l l y Mechanical waves are waves which propagate through a material medium (solid, liquid or gas) at a speed which depends on the elastic and inertial properties of the medium.
Basic concept
.^ Was the German jet interceptor Messerschmidt 262 the first airplane in the world to break the sound barrier?- TR 1/2003: A. Chelain: Was the Me262 the First Airplane to Break the Sound Barrier? 14 January 2010 20:24 UTC vho.org [Source type: FILTERED WITH BAYES]
^ The battle to break the sound barrier on land was won exactly 50 years after Chuck Yeager broke it in the air ...- NOVA Online | Faster Than Sound | Speed Machines 14 January 2010 20:24 UTC www.pbs.org [Source type: News]
^ In early September of 1997, the stage was finally set for the ultimate car race to be the first to officially break the sound barrier in a race car.- ThrustSSC - The fastest car in the world 14 January 2010 20:24 UTC www.roadsters.com [Source type: News]
.^ To describe the first perturbation, a decrease in pressure due to the ionization part in the reflected shock structure, the flow equations are linearized but the rate equations are used in nonlinear form.- Crespo-Martinez, Antonio (1968-05-07) I. Theoretical investigation of the reflection of ionizing shocks. II. Theoretical study of sound and shock waves in a two-phase flow. http://resolver.caltech.edu/CaltechETD:etd-05102005-094142 14 January 2010 20:24 UTC etd.caltech.edu [Source type: Academic]
^ If the humidity level is high enough (e.g., just above sea surface on a warm Pacific Ocean afternoon), the humidity in the air may condense in that trough of low pressure and form a cloud, only to be reabsorbed by the air when pressure returns to normal.- Pictures of the sound barrier-Disputed! 14 January 2010 20:24 UTC www.truthorfiction.com [Source type: FILTERED WITH BAYES]
^ A key sensor is a pitot tube protruding from the nose cone, which has small air inlets that are used to measure air pressure and thus airspeed.- Vehicle Positioning with GNSS — at the Speed of Sound | Inside GNSS 14 January 2010 20:24 UTC www.insidegnss.com [Source type: FILTERED WITH BAYES]
^{[1]}^{[2]}
.^ Two models exist: One for straight cuts used for picture, and one for slanted cuts used for sound.
^ It will be useful to think of a model where the air molecules are connected to each other by springs, as indicated in the above figure.
^ Replacement transformer for sound conditioner model #1200A. 110/120 volt for domestic use.- Get Sound Screen Sleep Mate Sound Machines, White Noise Conditioners, Sleep Machines from Marpac offering the SleepMate, Sound Screen, and the Marsona 14 January 2010 20:24 UTC www.marpac.com [Source type: FILTERED WITH BAYES]
.^ More molecules are squeezed into the same volume, therefore, the molecules are closer together and their bonds are stronger (think tight springs).- The Speed of Sound in Other Materials 14 January 2010 20:24 UTC www.ndt-ed.org [Source type: FILTERED WITH BAYES]
^ Since sound is more easily transmitted between particles with strong bonds (tight springs), sound travels faster through denser air.- The Speed of Sound in Other Materials 14 January 2010 20:24 UTC www.ndt-ed.org [Source type: FILTERED WITH BAYES]
^ In general, the bond strength between particles is strongest in solid materials and is weakest in the gaseous state.- The Speed of Sound in Other Materials 14 January 2010 20:24 UTC www.ndt-ed.org [Source type: FILTERED WITH BAYES]
.^ Only through his skill in compositional development do the motivic fragments remain fresh with each passing measure - while preserving the characteristic sound of SPEED RACER. .- ScoreKeeper Talks About Michael Giacchino's SPEED RACER Music!! -- Ain't It Cool News: The best in movie, TV, DVD, and comic book news. 14 January 2010 20:24 UTC www.aintitcool.com [Source type: General]
^ This has the important consequence that microscopic rotational motion cannot arise if it was initially absent (as is the case when a sound wave passes through the medium).- Sound Waves 14 January 2010 20:24 UTC mysite.du.edu [Source type: FILTERED WITH BAYES]
^ As mentioned at the beginning of this document, sound can be altered by its immediate environment and any further physical mediums it passes through after initial excitation.- JISC Digital Media - Audio: The Physical Principles of Sound 14 January 2010 20:24 UTC www.jiscdigitalmedia.ac.uk [Source type: FILTERED WITH BAYES]
.^ Speed of Sound through Materials Velocity of Materials .- Velocity Materials Speed of Sound through Materials Velocity of Materials 14 January 2010 20:24 UTC www.bamr.co.za [Source type: Academic]
^ The sound is transmitted much more quickly."- Daily Herald | Kids ask: Why does sound travel faster in water? 14 January 2010 20:24 UTC www.dailyherald.com [Source type: General]
^ The speed of sound can vary, depending on the material through which the sound waves move.
.^ One tricky thing is that as you can see in the table, all 16 possible effects are used, so we have no extra value to use for no-effect like we do with notes and samples.- Sound Mixing - Deku's Tree of Art 14 January 2010 20:24 UTC deku.rydia.net [Source type: FILTERED WITH BAYES]
^ Detailed car models, well designed tracks, damage effects (like an engine catching fire), and there is very little, if any, pop up.- Spirit of Speed 1937 Review (Dreamcast) - Gaming Age 14 January 2010 20:24 UTC www.gaming-age.com [Source type: General]
^ Non-literal Effects - are sounds used to indicate an event, without being "like" the actual sound of it.
.^ Elastic Properties and Young Modulus for some Materials Young Modulus (Tensile Modulus) for common materials - steel, glass, wood and more ..
^ Speed of Sound in some common Solids Elastic Properties and Young Modulus for some Materials The Bulk Modulus for Elasticity Material Properties Subsonic and Supersonic speed .
^ FIG. 4 shows the bulk modulus, density, and sound speed for a number of granular materials; .- Low sound speed damping materials and methods of use - Patent 6237302 23 September 2009 2:36 UTC www.freepatentsonline.com [Source type: Academic]
.^ Traveling Faster than Sound .- Traveling Faster than Sound - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: General]
^ A sound wave will travel faster in a less dense material than a more dense material.
^ A sound wave will travel faster in a less dense material rather than in a more dense material.- 03.04.04: The Physics of Sound: How We Produce Sounds 14 January 2010 20:24 UTC www.yale.edu [Source type: General]
.^ Traveling Faster than Sound .- Traveling Faster than Sound - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: General]
^ Depending on the density of the medium, sound travels through some mediums faster than others.- Some Basic Principles 14 January 2010 20:24 UTC harada-sound.com [Source type: FILTERED WITH BAYES]
^ Dislocations Faster than the Speed of Sound .- Dislocations Faster than the Speed of Sound -- Gumbsch and Gao 283 (5404): 965 -- Science 14 January 2010 20:24 UTC www.sciencemag.org [Source type: Academic]
.^ Dark is also heavier than light.- speed of dark 14 January 2010 20:24 UTC www.freakface.com [Source type: Original source]
^ The speed of sound is about a million times slower than the speed of light.- 03.04.03: Physics of Sound: How We Hear Sounds 14 January 2010 20:24 UTC www.yale.edu [Source type: FILTERED WITH BAYES]
^ Traveling Faster than Sound .- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
- Traveling Faster than Sound - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: General]
.^ Sound can also travel through solids and liquids, not just gases.- Lesson 49: Properties of Sound 14 January 2010 20:24 UTC www.studyphysics.ca [Source type: FILTERED WITH BAYES]
^ As a result, sound waves travel faster is solids than in liquids, and faster in liquids than in gasses.- The Speed of Sound in Other Materials 14 January 2010 20:24 UTC www.ndt-ed.org [Source type: FILTERED WITH BAYES]
^ Traveling Faster than Sound .- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
.^ Air density or density of air ρ , air impedance Z , speed of sound c .- Speed of sound in air and the temperature calculator air pressure - table density of air calculation acoustic impedance air density sea level velocity ideal gas 20 degrees or 21 degrees Celsius C - sengpielaudio Sengpiel Berlin 14 January 2010 20:24 UTC www.sengpielaudio.com [Source type: Academic]
^ State your value for the speed of sound.- The Science House - Speed of Sound 14 January 2010 20:24 UTC www.science-house.org [Source type: FILTERED WITH BAYES]
^ Several homogeneous Lodengraf™ materials are identified in FIG. 4, all of which have sound speeds near 100 m/s (although their densities range over three orders of magnitude).- Low sound speed damping materials and methods of use - Patent 6237302 23 September 2009 2:36 UTC www.freepatentsonline.com [Source type: Academic]
.^ Suppose that two volumes of a substance such as air have different densities.- The Speed of Sound in Other Materials 14 January 2010 20:24 UTC www.ndt-ed.org [Source type: FILTERED WITH BAYES]
^ Also, the density of air was neglected compared to that of water.- The Sounds of Teacups and Glasses 14 January 2010 20:24 UTC www.drphysics.com [Source type: FILTERED WITH BAYES]
^ The more the air is compressed, the greater the error.- Measuring and Calculating Air Speed: 14 January 2010 20:24 UTC womanpilot.com [Source type: FILTERED WITH BAYES]
.^ Traveling Faster than Sound .- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
^ Sound travels faster through solids than liquids and faster through liquids than gases.- 03.04.03: Physics of Sound: How We Hear Sounds 14 January 2010 20:24 UTC www.yale.edu [Source type: FILTERED WITH BAYES]
^ Kids ask: Why does sound travel faster in water?- Daily Herald | Kids ask: Why does sound travel faster in water? 14 January 2010 20:24 UTC www.dailyherald.com [Source type: General]
.^ Also, the density of air was neglected compared to that of water.- The Sounds of Teacups and Glasses 14 January 2010 20:24 UTC www.drphysics.com [Source type: FILTERED WITH BAYES]
^ Slow down or speed up the sounds.
^ We discussed sound waves as waves of compression in air.
Basic formula
In general, the speed of sound c is given by
where
- C is a coefficient of stiffness, the bulk modulus (or the modulus of bulk elasticity for gas mediums),
- ρ is the density
.^ Thus the speed of sound increases with the stiffness of the material.- Speed of sound in air and the temperature calculator air pressure - table density of air calculation acoustic impedance air density sea level velocity ideal gas 20 degrees or 21 degrees Celsius C - sengpielaudio Sengpiel Berlin 14 January 2010 20:24 UTC www.sengpielaudio.com [Source type: Academic]
^ Approximate speed of sound in common materials .- Speed of sound in air and the temperature calculator air pressure - table density of air calculation acoustic impedance air density sea level velocity ideal gas 20 degrees or 21 degrees Celsius C - sengpielaudio Sengpiel Berlin 14 January 2010 20:24 UTC www.sengpielaudio.com [Source type: Academic]
^ As the speed decreases, the amplitude increases.
For general equations of state, if classical mechanics is used, the speed of sound
c is given by
where differentiation is taken with respect to adiabatic change.
.^ What is the equation for the speed of sound in any gas?- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
^ Calculate the speed of sound.
^ Calculating the speed of sound .- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
.^ The speed of sound in a medium is given by: .- The Sounds of Teacups and Glasses 14 January 2010 20:24 UTC www.drphysics.com [Source type: FILTERED WITH BAYES]
^ The speed of sound is often confused with the frequency of a sound.- 03.04.03: Physics of Sound: How We Hear Sounds 14 January 2010 20:24 UTC www.yale.edu [Source type: FILTERED WITH BAYES]
^ Sound propagates through the medium with a speed independent of the motions of source and observer, of course.- Sound Waves 14 January 2010 20:24 UTC mysite.du.edu [Source type: FILTERED WITH BAYES]
.^ Air, for example, is a sound medium.
^ Photo: You'll only hear an alarm clock if there's air or some other medium to carry its sound to your ears.- How sound works: A simple introduction to the science of sound for kids 14 January 2010 20:24 UTC www.explainthatstuff.com [Source type: General]
^ The medium need not be air; metal, wood, stone, glass, water, and many other substances conduct sound, many of them better than air.
.^ A precise value of c = 331.46 m/s for dry air containing 0.03% CO 2 at 0 °C is given in tables, but the actual velocity is affected by vibrational relaxation in O 2 , the presence of H 2 O, and other small factors, so the precision is somewhat illusory.- Sound Waves 14 January 2010 20:24 UTC mysite.du.edu [Source type: FILTERED WITH BAYES]
^ This implies that when a sound moves from air to water or vice versa, the frequency of the sound will be the same in each medium.
^ For the lowest frequencies, the maximum amplitude as measured by the microphone does not occur at the position of the loudspeaker, but a noticeable and measurable amount down the tube away from it.
^{[3]}
.^ Divide the speed of sound by the frequency (in hz) and divide again by 2.- Wind Instrument Mathematics 14 January 2010 20:24 UTC www.mimf.com [Source type: FILTERED WITH BAYES]
^ The speed of sound in a medium is given by: .- The Sounds of Teacups and Glasses 14 January 2010 20:24 UTC www.drphysics.com [Source type: FILTERED WITH BAYES]
^ Speed of sound in various mediums .
The spatial and temporal distribution of a propagating disturbance will continually change.
.^ Each component has a distinct frequency, amplitude and phase.- JISC Digital Media - Audio: The Physical Principles of Sound 14 January 2010 20:24 UTC www.jiscdigitalmedia.ac.uk [Source type: FILTERED WITH BAYES]
^ Multiple frequencies will combine in the air, creating a complex mix of sound, the nature of which depends upon the ratios of energy and phase of the combined sounds.- Measurement and Characterization of Sound Systems Sound System Characterization and Measurement 14 January 2010 20:24 UTC digitalcontentproducer.com [Source type: FILTERED WITH BAYES]
^ This key piece of mathematics proved that any sound was a combination of various singular frequency components in a mix of relative levels and phases.- Measurement and Characterization of Sound Systems Sound System Characterization and Measurement 14 January 2010 20:24 UTC digitalcontentproducer.com [Source type: FILTERED WITH BAYES]
.^ Doppler effect the phenomenon, called the Doppler Effect, is a shift in the frequency and wavelength of waves, including sound and light, resulting from relative motion between the source of the wave and the medium.
^ From our construction, we see that the incident and refracted wave normals, and the normal to the interface, all lie in the same plane, the plane of incidence .- Sound Waves 14 January 2010 20:24 UTC mysite.du.edu [Source type: FILTERED WITH BAYES]
^ In answer to the question of the speed of Light and Gravity - yes, they are the same, as they are simply the velocity of the Spherical In-Waves flowing through Space.- Speed of Gravity / Speed of Light 14 January 2010 20:24 UTC www.spaceandmotion.com [Source type: FILTERED WITH BAYES]
Dependence on the properties of the medium
.^ Speed of Sound through Materials Velocity of Materials .- Velocity Materials Speed of Sound through Materials Velocity of Materials 14 January 2010 20:24 UTC www.bamr.co.za [Source type: Academic]
^ The speed of sound for various gases at 0° C: .- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
^ Speed of sound in various mediums .
.^ The speed of any wave depends upon the properties of the medium through which the wave is traveling.- The Speed of Sound 14 January 2010 20:24 UTC www.physicsclassroom.com [Source type: FILTERED WITH BAYES]
- 03.04.04: The Physics of Sound: How We Produce Sounds 14 January 2010 20:24 UTC www.yale.edu [Source type: General]
^ Speed and attenuation of waves in solids .- The speed and attenuation of sound 2.4.1 14 January 2010 20:24 UTC www.kayelaby.npl.co.uk [Source type: Academic]
^ The density of the medium will affect the speed the wave will travel at.- 03.04.04: The Physics of Sound: How We Produce Sounds 14 January 2010 20:24 UTC www.yale.edu [Source type: General]
.^ The density and compressibility of the composite medium are where the a and w subscripts refer to air and water, respectively.- The Sounds of Teacups and Glasses 14 January 2010 20:24 UTC www.drphysics.com [Source type: FILTERED WITH BAYES]
^ Compressibility of a fluid directly relates to the speed of sound and density of the fluid.- ISA | Measurement at speed of sound 14 January 2010 20:24 UTC www.isa.org [Source type: Academic]
^ The speed of dilatational waves in unbounded fluids is c = (β a ρ ) −1/2 , β a being the adiabatic compressibility and ρ the density.- The speed and attenuation of sound 2.4.1 14 January 2010 20:24 UTC www.kayelaby.npl.co.uk [Source type: Academic]
.^ In non-ideal gases, such as a van der Waals gas, the proportionality is not exact, and there is a slight dependence on the gas pressure, even at a constant temperature.- The speed of sound facts pictures and information | Mach 1 = 761.18 mph 14 January 2010 20:24 UTC www.aviationexplorer.com [Source type: FILTERED WITH BAYES]
^ Although the equation for the speed of sound (speed = frequency x wavelength) is constant, the speed is affected by the medium through which the sound waves are propagated, as well as other conditions such as temperature and humidity.- Fascinating Facts About The Speed Of Sound 14 January 2010 20:24 UTC www.proavmagazine.com [Source type: General]
^ For example, in low molecular weight gases, such as helium, sound propagates faster compared to heavier gases, such as xenon.- The speed of sound facts pictures and information | Mach 1 = 761.18 mph 14 January 2010 20:24 UTC www.aviationexplorer.com [Source type: FILTERED WITH BAYES]
.^ The speed of sound for various gases at 0° C: .- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
^ What happens when the object moves at the speed of sound?- Traveling Faster than Sound - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: General]
^ The speed of sound in a gas is a function of its temperature.- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
.^ The speed of sound in a medium is given by: .- The Sounds of Teacups and Glasses 14 January 2010 20:24 UTC www.drphysics.com [Source type: FILTERED WITH BAYES]
^ The speed of sound in air actually depends on the temperature of the air.- Lesson 49: Properties of Sound 14 January 2010 20:24 UTC www.studyphysics.ca [Source type: FILTERED WITH BAYES]
^ The speed of sound in a gas is a specific fraction of the average speed of the gas molecules at the given temperature.- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
.^ The speed of sound is not influenced by the temperature.
^ The speed of sound decreases as the temperature increases.
^ Increasing the pressure increases the speed of sound and shifts the maximum to higher temperatures, both in line with the effect on the density.- Explanation of the Density Anomalies of Water (D1-D19) 14 January 2010 20:24 UTC www.lsbu.ac.uk [Source type: Academic]
.^ Sound can also travel through solids and liquids, not just gases.- Lesson 49: Properties of Sound 14 January 2010 20:24 UTC www.studyphysics.ca [Source type: FILTERED WITH BAYES]
^ They compress and form a shock wave (see “Piling On,” below).- Mach 1: Assaulting the Barrier | History of Flight | Air & Space Magazine 14 January 2010 20:24 UTC www.airspacemag.com [Source type: FILTERED WITH BAYES]
^ In non-ideal gases, such as a van der Waals gas, the proportionality is not exact, and there is a slight dependence on the gas pressure, even at a constant temperature.- The speed of sound facts pictures and information | Mach 1 = 761.18 mph 14 January 2010 20:24 UTC www.aviationexplorer.com [Source type: FILTERED WITH BAYES]
.^ The speed of sound in air actually depends on the temperature of the air.- Lesson 49: Properties of Sound 14 January 2010 20:24 UTC www.studyphysics.ca [Source type: FILTERED WITH BAYES]
^ The correct answer is: The speed of sound does not depend on air pressure, but on temperature.- Speed of sound in air and the temperature calculator air pressure - table density of air calculation acoustic impedance air density sea level velocity ideal gas 20 degrees or 21 degrees Celsius C - sengpielaudio Sengpiel Berlin 14 January 2010 20:24 UTC www.sengpielaudio.com [Source type: Academic]
^ What is the equation for the speed of sound in any gas?- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
.^ In non-ideal gases, such as a van der Waals gas, the proportionality is not exact, and there is a slight dependence on the gas pressure, even at a constant temperature.- The speed of sound facts pictures and information | Mach 1 = 761.18 mph 14 January 2010 20:24 UTC www.aviationexplorer.com [Source type: FILTERED WITH BAYES]
^ In a given ideal gas the speed of sound depends only on its temperature.- Speed of sound in air and the temperature calculator air pressure - table density of air calculation acoustic impedance air density sea level velocity ideal gas 20 degrees or 21 degrees Celsius C - sengpielaudio Sengpiel Berlin 14 January 2010 20:24 UTC www.sengpielaudio.com [Source type: Academic]
^ In a given ideal gas the sound speed depends only on its temperature.- Speed of sound in air and the temperature calculator air pressure - table density of air calculation acoustic impedance air density sea level velocity ideal gas 20 degrees or 21 degrees Celsius C - sengpielaudio Sengpiel Berlin 14 January 2010 20:24 UTC www.sengpielaudio.com [Source type: Academic]
- The speed of sound facts pictures and information | Mach 1 = 761.18 mph 14 January 2010 20:24 UTC www.aviationexplorer.com [Source type: FILTERED WITH BAYES]
.^ Measurement at speed of sound .- ISA | Measurement at speed of sound 14 January 2010 20:24 UTC www.isa.org [Source type: Academic]
^ Calculate the speed of sound in air for each of the measurements you made.
^ What is the speed of sound in air?- Speed of sound in air and the temperature calculator air pressure - table density of air calculation acoustic impedance air density sea level velocity ideal gas 20 degrees or 21 degrees Celsius C - sengpielaudio Sengpiel Berlin 14 January 2010 20:24 UTC www.sengpielaudio.com [Source type: Academic]
This is a simple mixing effect.
Implications for atmospheric acoustics
.^ The speed of sound is not influenced by the temperature.
^ The speed of sound decreases as the temperature increases.
^ The speed of sound in a gas is a function of its temperature.- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
.^ The speed of sound in a gas is a function of its temperature.- Speed of Sound in a Gas - Succeed in Understanding Physics: School for Champions 14 January 2010 20:24 UTC www.school-for-champions.com [Source type: FILTERED WITH BAYES]
^ The presence of a tailwind or headwind will increase or decrease the ground speed.- Measuring and Calculating Air Speed: 14 January 2010 20:24 UTC womanpilot.com [Source type: FILTERED WITH BAYES]
^ Sound speed is the source of this information.- Dispersion Technology, Inc.- Instruments for Characterizing Concentrated Colloidal Dispersions. 23 September 2009 2:36 UTC www.dispersion.com [Source type: Academic]
^{[4]} .^ The speed of sound decreases as the temperature increases.
^ The speed of sound increases as the temperature decreases.
^ This is a wind shear , that can be expressed by a gradient dU/dy, where U is the wind speed and y is the height.- Sound Waves 14 January 2010 20:24 UTC mysite.du.edu [Source type: FILTERED WITH BAYES]
.^ The speed of sound decreases as the temperature increases.
^ The speed of sound increases as the temperature decreases.
^ The speed of sound increases as the temperature increases.
Practical formula for dry air
The approximate speed of sound in dry (0% humidity) air, in meters per second (m·s^{−1}), at temperatures near 0 °C, can be calculated from:
where
.^ T is the temperature of the air in degrees Celsius.
^ For example, zero degrees Celsius is equal to 273 K. The ratio of the local temperature to that of SSL is called theta or q.- Measuring and Calculating Air Speed: 14 January 2010 20:24 UTC womanpilot.com [Source type: FILTERED WITH BAYES]
^ At normal atmospheric pressure and a temperature of 20 degrees Celsius, a sound wave will travel at approximately 343 m/s; this is approximately equal to 750 miles/hour.
This equation is derived from the first two terms of the
Taylor expansion of the following more accurate equation:
.^ In fact, its a very real and very common scenario.- The Court Reporting Students' Online Support Center 14 January 2010 20:24 UTC www.his.com [Source type: General]
^ The result is a value that closely approximates the measured speed of light.- Molecular Expressions Microscopy Primer: Physics of Light and Color - Speed of Light 14 January 2010 20:24 UTC micro.magnet.fsu.edu [Source type: FILTERED WITH BAYES]
^ This dependence also applies to air, in good approximation and can be regarded as an ideal gas.- Speed of sound in air and the temperature calculator air pressure - table density of air calculation acoustic impedance air density sea level velocity ideal gas 20 degrees or 21 degrees Celsius C - sengpielaudio Sengpiel Berlin 14 January 2010 20:24 UTC www.sengpielaudio.com [Source type: Academic]
.^ Calculate the speed of sound.
^ The speed of sound varies depending...
^ The speed of the sound wave varies with the temperature.
.^ Find out exactly what you need to run your successful basketball speed camp with these useful, easy-to-use checklist.- Basketball, basketball speed, basketball workouts, basketball drills for speed.... 14 January 2010 20:24 UTC mybasketballspeed.com [Source type: General]
^ Is there a formula that I could use to calculate the needed RPM and diameter of a large rod that would approach the speed of light at the tip of the rod?- NASA's Cosmicopia -- Ask Us - General Physics - Speed of Light 14 January 2010 20:24 UTC helios.gsfc.nasa.gov [Source type: Original source]
^ The volume elasticity κ is used for generality, instead of γp for an ideal gas.- Sound Waves 14 January 2010 20:24 UTC mysite.du.edu [Source type: FILTERED WITH BAYES]
.^ It is often the case that one can make approximations that apply over a limited region of reality, but that fail when we examine a larger range.- The speed of light is constant (from Einstein Light) 14 January 2010 20:24 UTC www.phys.unsw.edu.au [Source type: Original source]
^ I recently (September 2005) discovered that due to the approximate nature of the linearized equations this value is correct to the first order, but leads to an error for the wave momentum.- Plane Waves (Sound) 14 January 2010 20:24 UTC www.silcom.com [Source type: FILTERED WITH BAYES]
^ To a first order approximation, in this temperature range the speed of sound increases at a rate of 1 foot per second per degree Fahrenheit.- AN ANALYSIS OF RECORDED SOUNDS RELATING TO THE ASSASSINATION OF PRESIDENT JOHN F. KENNEDY 14 January 2010 20:24 UTC mcadams.posc.mu.edu [Source type: FILTERED WITH BAYES]
.^ The lunar orbit relative to Earth is a low eccentricity ellipse.
^ At resonance the pressure variation within the pipe becomes quite large, and a relatively low sound intensity results in a large variation in flame intensity.- Physics Demonstrations - Sound 14 January 2010 20:24 UTC sprott.physics.wisc.edu [Source type: FILTERED WITH BAYES]
.^ These are the basic equations of hydrodynamics, and are derived in any fluid mechanics text.- Sound Waves 14 January 2010 20:24 UTC mysite.du.edu [Source type: FILTERED WITH BAYES]
^ As discussed in a previous unit , the mathematical relationship between speed, frequency and wavelength is given by the following equation.
^ The general equation for momentum flux is given in Table 3 of section 1.- Plane Waves (Sound) 14 January 2010 20:24 UTC www.silcom.com [Source type: FILTERED WITH BAYES]
Details
Speed in ideal gases and in air
For a gas,
K (the
bulk modulus in equations above, equivalent to C, the coefficient of stiffness in solids) is approximately given by
thus
Where:
- γ is the adiabatic index also known as the isentropic expansion factor. .^ The ratio of specific heats is related to the specific heat at constant pressure, c p , and the specific head at constant volume, c V , according to: .
^ Sound is a pressure wave pressure waves .
^ We discussed sound waves as waves of compression in air.
- p is the pressure.
- ρ is the density
Using the
ideal gas law to replace
p with
nRT/
V, and replacing
ρ with
nM/
V, the equation for an ideal gas becomes:
where
.