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AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information. If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. How is sound used to measure, detect, and track oil? How is sound used to study undersea earthquakes? How is sound used to study underwater volcanoes?
How is sound used to map the seafloor? How is sound used to research wind energy? Investigate Marine Animals How is sound used to study marine mammal distribution?
How is sound used to estimate marine mammal abundance? How is acoustics used to monitor Arctic marine mammals? How is sound used to protect marine mammals? How is sound used to study the distribution of marine fishes?
How is sound used to measure plankton? How is active acoustics used in fisheries research and management? How is sound used to study coral reefs? How is sound used to identify ecological hotspots?
Study Weather How is sound used to measure rainfall over the ocean? How is sound used to measure wind over the ocean? National Defense How is sound used to find submarines? How is sound used to monitor nuclear testing? How is sound used to monitor and defend harbors? Science Tutorial: How do you characterize sounds? Science Tutorial: How does sound in air differ from sound in water? Rossby Dr. Miller Dr. Benoit-Bird Dr. Au Dr. Tutorial: How can we moderate or eliminate the effects of human activities?
Here we are referring to the ocean pressure due to the weight of the overlying water equilibrium pressure , not to the pressure associated with a sound wave. Previous: Wavelength. Next: Sound Spreading. Go to Top. The speed of sound in seawater is different from the speed of sound in air, which is different from that in oil, and so on. Compare this to the speed of sound in air, which is The discrepancy is obvious: sound travels nearly five times faster in seawater than in dry air!
Why does sound travel faster in seawater and other mediums than in air? The difference is caused in large part by the different ways that sound is transmitted in gases, solids, and liquids. Speed of sound transmission in liquids depends largely on the compressibility and density of the medium in question.
The speed of sound is variable and depends on the properties of the substance through of which the wave is travelling. In solids, the speed of longitudinal waves depends on the stiffness to tensile stress, and the density of the medium.
In gases, however, the speed of sound is dependent only on temperature, since density and compressibility of ideal gases are dependent on temperature.
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