Introduction. As we will see in section 13.2, the fact that the waves do not arrive perfectly parallel to the beach causes longshore currents and longshore transport that run parallel to the shore. An oxbow. d. Long shore current. b. Methane. d. when winds are strong. b. \it{The medical terms below are commonly used by people who are not necessarily She was here. Wave refraction cause the wave to become _____. B. deep-ocean trench Large estuaries are more common on a ____ coastline. b. calculated by dividing its cross-sectional area by its velocity. Select one: a. Delta b. Groin c. Sand dune d. Long shore current. Also known as littoral drift (13.2), a point of land extending out to sea (13.3), unconsolidated particles of mineral or rock that settle to the seafloor (12.1). The swash (waves moving up the beach) carries material up and along the beach. 10 - Polarization of the reflected wave. Award: 1.00 point1.00 point During a storm, Overall water level falls due to the low air pressure associated with storms. Select one: A. associated with a submergent coast B. excellent examples of large estuaries C. former river valleys that were flooded by a rise in sea level D. all of the above, One result of wave refraction is that wave energy is concentrated ________. c. Increases in size and proportion to the size of the stream or river it feeds, for the same climate. This last one shows waves refracting around the spit at Aromoana in Dunedin, NZ. Select one: If a wave front approaches shore at an angle, the end of the wave front closest to shore will touch bottom before the rest of the wave. Groins are constructed for the purpose of maintaining or widening beaches that are losing sand. (b) How much time does it take for each complete current oscillation after the switch in this circuit is closed? A. the zone of deposition When the wave touches the bottom, friction causes the wave to slow down. Identifythemeaningofthewordbythesuffix. This is because the bottom of the wave begins to slow down before the top of the wave, as it is the first part to encounter the seafloor. In the northern hemisphere, the Coriolis effect causes surface currents in the ocean to be deflected slightly _____ compared to the winds that cause them. Assume that a string named source contains arithmetic operators and integer operands. The backwash (waves moving back down the beach) carries material back down the beach at right angles. { "12.01:_Coasts" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.
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( CC BY-SA 4.0; C. Wang) The boundary between the two semi-infinite and lossless regions is located at the z = 0 plane. Post your homework questions and get free online help from our incredible volunteers, The reason behind your emotions, according to Hippocrates. The movement of sand parallel to the shore a. is created by waves approaching at an oblique angle b. may create spits c. is achieved by longshore currents d. all of these One result of wave refraction is that wave energy is dispersed (reduced) a. on headlands projecting into the water b. in the recessed areas between headlands c. in estuaries d . Themedicaltermsbelowarecommonlyusedbypeoplewhoarenotnecessarilyinthemedicalfield. Our community brings together students, educators, and subject enthusiasts in an online study community. Breakwater, seawalls, and groins are examples of ___. A. pebbles caught in swirling eddies of water thicker blue arrow represents the waves approaching the shoreline at an angle. Select one: A. cause coasts to switch from submergence to emergence B. make tides rise and fall C. cause beach drift D. cause hard stabilizati, Which of the following shoreline features is a result of deposition? It shows a swell approaching in an easterly direction (waves also refract off the peninsula headland located on the right side of the map) before being re directed off the spit. D. Slack water, Which of the following shoreline features is a result of deposition? carried along the coast. If a spit grows as it is deposited, and extends completely across the former mouth of an estuary, separating it from the open sea, it has become a ____. Most of the incidents on the Great Lakes are caused by structural and rip currents, so it is reasonable that we see a large number of the incidents occurring when waves are approaching the beach at oblique angles (GLCID, 2020). ____ are huge circular-moving current systems that dominate the surface of the ocean basin. b. a well-developed dune field D. sea stack, Why is productivity low In tropical regions? B. Loess Increases in volcanic ash in the air. If you were swimming in the ocean along this shoreline, which way would the longshore current carry you? Select one: The discharge of a stream is: Which of the following shoreline features is a result of deposition? Select one: During a storm, Select one: a. D. evaporation, How do potholes form? As wind-driven waves approach the shoreline at a slight angle, sediments are c. Worldwide cooling observed since the 1920s. \textbf{\color{#c34632}{{ LO 1.3}}} Though usually linear, the waterline can . Select one: A longer period wave is able to sometimes wrap 180 around a . b. Traps gamma rays and thereby reduces global warming. Swell can be generated anywhere in the ocean and therefore can arrive at a beach from almost any direction. As this sheet of water moves on and off the beach, it can transport beach sediment back out to sea. If you dropped a pebble in the water at one end of the beach, it could zigzag all the way along to the other end. b. A. Marble d. Will not affect sea level; melting of land ice will cause a lowering of sea level. a. Along the shore, sand and pebbles drift (Longshore drift) in at one angle and out at another. Dust storms Barrier islands are common on the Gulf Coast but rare or absent along the Pacific Coast of the United States. Water particles move in a straight line, in the same direction that the wave is moving. Turbulent water created by breaking waves is known as ____. a. It is shown analytically that, in the limit of normal incidence, the value of a approaches the well-known classical result a 0 = m 1/2 and, for glancing incidence, Whitham's (1979) result is confirmed where the value approaches either 1 or 0 depending on whether the beach angle is or is not an angle at which a new Ursell edge wave mode . Capacity All of the following could cause global cooling except Deep ocean currents are driven by thermoheline circulation rather then prevailing winds. Waves are created by the wind blowing over the surface of the water. Tidal flats are submerged during ebb tides. Themedicaltermsbelowarecommonlyusedbypeoplewhoarenotnecessarilyinthemedicalfield. The wave is incident at the Brewster's angle where the TM polarization is completely. But if you have ever stood at the shore you have probably noticed that the waves usually approach the shore somewhat parallel to the coast. A meander. D. sea arch, No thermocline exists in high-latitude regions because there is little temperature difference between the top and bottom of the water column. created by longshore currents may create spits created by waves approaching at an oblique angle all of these Correct! Currents Tutorial. D. pycnoclinal, At low latitudes, the ________ is a zone of rapid temperature change over a relatively short depth. Diagram A shows water from the storm getting into the stream channel faster than it does in diagram B. Select one: A. Coriolis B. Upwellings C. Tombolos D. Gyres, When waves reach shallow water they tend to be ________, which makes them become parallel to the shore. A. pycnocline; thermocline Longshore drift is the movement of sediments along a coast by waves that approach at an angle to the shore but then the swash recedes directly away from it. A map showing the extent of a floodplain D. submarine canyon, Artesian wells may be nonflowing. The principal source of evaporated water that becomes precipitation are C. are a major agent of erosion in areas of ground moraine 2003-2023 Chegg Inc. All rights reserved. B. a sound pulse travels from a ship to the seafloor and back D. make tides rise and fall, Desertification has been particularly well documented over the past 50 years in ________. The wave crests are moving through water that becomes uniformly shallower toward the shore. D. 5 and 10, What two, metamorphic rocks are composed predominantly of single minerals? Based on these features, the area is likely to be ______. A. seawater on Earth A. phyllite The zigzag movement of sand grains along a beach is ________. Usingwhatyoumayalreadyknow,identifythemeaningofthesuffixofmedicalterms. Longshore currents and longshore drift are caused by waves approaching the beach at an oblique angle. c. A floodplain. The ____ is the distance the wind has traveled across open water. a. One result of wave refraction is that wave energy is concentrated ?______. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. c. Diagram A illustrates that there is more infiltration after urbanization, and therefore less water reaches the stream channel. When a wave encounters the shallow water of a headland the shallow section slows while the deeper section continues traveling at a faster speed. Groynes can be constructed to stop the flow of longshore drift, but some sand and gravel still escapes. The process of longshore drift can change the shape of beaches over time. If uplift of the land occurs, a wave-cut platform may become a new ____. D. guyot, Waves approaching a beach at an oblique angle ________. Which of the following is correct regarding a wave is the open ocean? c. when winds blow on-shore a. Sea surface temperature (SST) is a key marine ecological metric. Increased sulfate aerosols in the atmosphere. The current is called longshore current. When the wave touches the bottom, friction causes the wave to slow down. The isotopic composition of the vapor is influenced by the temperature. B. Silt and clay-sized detrital grains B. B. A depositional feature formed when a fast-flowing stream joins a slower one or a mountain stream flows out into a plain is