Exam 10: Waves
What are the five different types of waves discussed in this chapter? Which waves are considered to be deep-water waves? Include the disturbing and restoring forces of these waves.
Answer should include:
• The types of waves discussed in this chapter are: capillary waves, wind waves, seiche waves, seismic sea waves, and tides.
• Capillary waves and wind waves are both considered to be deep-water waves. This means that it is possible for the depth under these waves to be more than the wavelength of the wave. Capillary waves and wind waves are created by wind. Their restoring force is the cohesion of water molecules which is different than the other waves mentioned. Wind waves are able to retain the most amount of energy. Like the other waves, the restoring force for wind waves is gravity.
• Tides, seismic sea waves, and seiches are considered to be shallow-water waves due to their large wavelengths. They are in constant interaction with the seafloor. Seiches can be formed by sudden changes in the atmospheric pressure or storm surges. They are in enclosed bays or harbors. Seismic sea waves are due to disturbances in the seafloor. Tides stem from the gravitational attraction of the Earth, sun and moon. These are all restored by gravity.
Information can be found in the sections The Behavior of Waves Is Influenced by the Depth of Water through Which They Are Moving, Waves Are Classified by Their Physical Characteristics, Water Can Rock in Confined Basin.
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