How does temperature affect ultrasonic waves?
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visit these website may be you'll find right answer\n\nhttp://www.newi.ac.uk/buckleyc/sound.htm \n\nhttp://link.aip.org/link/?JPVTAS/127/220/1 \n\nhttp://www.lns.cornell.edu/spr/2001-09/msg0035315.html \n\nhttp://www.pubmedcentral.gov/articlerender.fcgi?artid=170025 \n\nhttp://www.google.com/search?hl=en&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=how+does+temperature+effect+ultrasonic+waves&spell=1
572865
The temperature of any material is a measure of the average kinetic energy of all the atoms in the material. As you increase this kinetic energy (temperature) then the atoms are more energetic the atoms vibrate with more energy this means each atom takes up more space and so the total volume of the material increases aswell
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The heat causes waves in the air that affect the passage of light becuase the density is different than the surrounding air.  Same happens if you look at the fron of an  air horn like at a football game. But it's the opposite, it's caused by extreme cold.
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Sound is a type of longitudinal, mechanical wave. They need a medium to propagate and will not travel through a vacuum. Sound travels at different speed in different media. The speed of sound is determined by the density (ρ) and compressibility (β) of the medium. Density is the amount of material in a given volume, and compressibility is a meaasure of how much a substance could be compacted for a given pressure. The denser and the more compressible, the faster the sound waves would travel. Therefore, the speed of sound is about four times faster in water than in air. The speed of sound in a medium can be determined by the equation  …\n\nv = (βρ)-1/2\n\nWhere …\n\nv is the speed of sound,\nβ is the bulk modulus of elasticity, and\nρ (rho) is the density.\n\nThe speed of sound can also be affected by temperature. Sound waves tend to travel faster at higher temperatures. I have found different values for the speed of sound in water in different sources. They range from 1450 to 1498 meters per second in distilled water and 1531 m/s in sea water at room temperatures (20 to 25 °C).
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yes sound does travel faster in denser mediums, but when the temperature of a medium drops, then the viscosity of the medium drops as well, then even though the density would get higher, the sound would still slow down, because of the now less viscous medium.\na hotter medium would be more viscous then a cold one, therefore, sound travels faster in hot water, then it does in cold water
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A good approximation is the speed of sound is 331.5 + 0.6 * T.  T is the temperature in Celsius.  The answer is in metres per second.  Using this formula, the speed of sound at 25 degrees Celsius is 346.5 m/s.
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I'm not 100% sure but I think your idea is correct. Longitudinal sound waves in the metal, which travel at a different and faster speed than the visible wave, reflect off the pulse or kink (because there's a discontinuity in sound speed at that point). Because the pulse is moving away, the reflected wave has a lowered frequency each time it's reflected - that's expected behavior.\n\nAn equivalent way of saying the same thing (although it seems different) is that the fundamental wavelength of the standing wave based on the length of the tape between the two endpoints: the top of the tape and the pulse, is continuously lengthening or shrinking causing the pitch to go down or up continuously like the pitch of a guitar string when the hand slides along the fingerboard.\n\nThis can't be a case of a Doppler shift caused by a moving sound source - because in that situation, the pitch would be lowered (for a source travelling directly away) but not continuously decreasing.\n\nWith respect to the other question:\n\nIt's quite certain that there can't be any difference in speed between a wave moving up or down (at a given point on the tape). The only possible effect of gravity is as explained by Epidavros, to gradually increase the wave speed at higher levels - *if* it so happens that total weight of the tape (e.g. when it's rolled up) is comparable to the spring tension.
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temperature differences
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temperature affects the solubility of a compound.\n\nso if the temperature increases, the solubility decreases which would make the intermolecular bonds in the paint weaker and thus, the paint would become brittle.\n\ni hope that helped.
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Sound travels in a wave.  Actually travels best through a solid.
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Speed of sound is dependent on temperature. Speed of sound is directly proportional to the square root of pressure and inversely proportional to the square root of the density of the medium.\nv is proportional to P(pressure) and inversely proportional to D(density)\nP/D=RT/M    where R is the gas constant, T is the absolute temperature and M is the molecular mass.\n\nTherefore, Pressure is directly proportional to the absolute temperature of the gas.\nHence,\nv is directly proportional to the temperature.
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Sound is a pressure wave. When it hits a surface the pressure wave is sensed as a force wave. Although weight is a force, the force caused by sound is not weight since it is continuously varying about a mean of zero.
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Time, temparature, and pressure are required to weld metals or polymers together.  Ultrasonic vibration is used as the heat source. Combined with pressure and a little time, it causes the molecules to integrate together resulting in a welded part.
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The frequency can be converted to energy, which has an equivalent temperature. Your question is rife with confusion. I attached a reference about the Big Bang that might clear some of it up.\n\nHere is the way to get the temperature of a wave of frequency f:\n\nE=hf\n\nwhere E is energy and h is Planck's constant. Also, for each degree of freedom, \n\nE=kT/2\n\nso for the photon with 2 degrees of freedom (2 spins), \n\nE=kT\n\nwhere k is Boltzmann's constant (the universal gas constant divided by Avogadro's number), and T is temperature.\n\nso T=E/k=hf/k \n\n(see references)
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20Hz- 20kHz (audible frequencies)\n< 20Hz (infrasonic)\n> 20kHz (ultrasonic)\n\nlongitudinal wave - sound wave\nthe rest are transverse waves
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condensed molecules are tightly packed so the sound wave vibration goes from each one in a quick succession.\n\nBTW, sound travels farthest in water! it travels cleanest in air
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In physics it is acoustics.