One result of wave refraction is that wave energy is concentrated _____. Identifythemeaningofthewordbythesuffix. Waves approaching a beach at an oblique angle ______. #1. Matchthedefinitionontheleftwiththecorrecttermitisdescribingontheright. D. make tides rise and fall, Desertification has been particularly well documented over the past 50 years in ________. Select one: A. refracted B. eroded C. translated D. reflected, Erosional retreat of a(n) ________ leads to enlargement and extension of a wave-cut platform in the inland direction. Chemical weathering of limestone in caves Fetch is _____. c. The oceans are warmed by the evaporation process. In the bay, the refraction has caused the wave fronts to refract away from each other, dispersing the wave energy, and leading to calmer water and smaller waves. c. cold and salty C. glacial ice on Earth A map showing the extent of a floodplain c. Carbon monoxide. The numerical model is compared with field measurements from three sites on the northern Yucatan coast of Mexico. D. 5 and 10, What two, metamorphic rocks are composed predominantly of single minerals? a. the land is being tectonically uplifted and is rising faster than the sea c. Another flood of that size cannot happen in the same year. The orthogonals of wave crests approaching a . D. gneiss, Groundwater is the largest reservoir of ________. This wave refraction causes the entire wave crest to progressively rotate toward being . d. Diagram B shows a stream responding faster and more intensely to a rainfall event. 13. carried along the coast. Assume that a string named source contains arithmetic operators and integer operands. d. Falling sea level. Introduction. cold, nutrient-poor warm, nutrient-poor. Click to view larger image. Select one: True False, The largest daily tidal range occurs in association with spring tides. b. the tidal range is so small that there has been little erosion, even over millions of years B. cause coasts to switch from submergence to emergence B. C. isothermal Were getting closer to the beach! 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 ________. The last one involves biochemical bacterial digestion 1). Examine the figure. Of the three forms of hard stabilization illustrated here, which one is the groin? d. Traps infrared rays and thereby reduces global warming. Will cause a rise in sea level. How is Biology Forums - Study Force different than tutoring. An L-R-C series circuit has L = 0.400 H, C=7.00FC=7.00 \mu FC=7.00F, and R=320R=320 \OmegaR=320. d. All of the choices are correct. 1 / 1 ptsQuestion 9 Waves begin to "feel bottom" when the depth of water is ________. What type of beach is likely to exist on a coastline covered with sea caves? Calculate the xxx and yyy components of force necessary to hold the horizontal pipe assembly in equilibrium. Which of the following is correct regarding a wave in the open ocean? b. warm, nutrient-rich cold, nutrient-rich IncorrectQuestion 400 / 2 pts A ____ tide occurs when the moon and sun are at perpendicular angles to each . B. marine terrace d. dermatitis Matchthedefinitionontheleftwiththecorrecttermitisdescribingontheright. B. The Mach wave angle is dependent on the free stream Mach number. Incorrect a. long, wide beaches Material rolled along the streambed. B. Loess equal to one-half the wavelength equal to the fetch. The magnetic field intensity Hi TM of this wave is given by. 2.The right panel of Figure 7A-1 shows wave crests approaching the shore from a different oblique angle. (a) What are the values of the constants A and \phi in Equation q=Ae(R/2L)tcos(1LCR24L2t+)q=A e^{-(R / 2 L) t} \cos \left(\sqrt{\frac{1}{L C}-\frac{R^{2}}{4 L^{2}}} t+\phi\right)q=Ae(R/2L)tcos(LC14L2R2t+)? B. Silt and clay-sized detrital grains The narrower blue arrows show the current that develops as a result of the waves hitting the coastline at an angle. D. Biogenous, Regional metamorphism occurs during ( CC BY-SA 4.0; C. Wang) The boundary between the two semi-infinite and lossless regions is located at the z = 0 plane. The accretion and erosion of a sedimentary coast relates to the angle of incidence of prevailing waves at the depth contour where waves start breaking (this angle between incident wave front and breaker depth contour is usually denoted b).Based on this angle, it is possible to distinguish between 5 main types of coasts (for a more detailed description, see the article . Match the definition on the left with the correct When water evaporates from the oceans, Select one: Oblique shocks are generated by the nose and by the leading edge of the wing and tail of a supersonic aircraft. If isobaths, contours of water depth, were drawn, they . C. Sand and gravel that move along the bottom during floods In the simplest waves, the disturbance oscillates periodically (see periodic motion) with a fixed frequency and wavelength. What is the potential difference between the plates after the battery is disconnected? d. Volcanic eruptions. There are three main types of breakers: spilling, plunging, and surging. Complete the drawing of the orthogonals to shore. a. A. oceanic ridge If uplift of the land occurs, a wave-cut platform may become a new ____. c. dentist Based on these features, the area is likely to be ______. Eventually the wave height exceeds 1/7 of the wavelength, and the wave becomes unstable and forms a breaker. This page titled 12.10: Longshore Currents and Longshore Drift is shared under a not declared license and was authored, remixed, and/or curated by Miracosta Oceanography 101 (Miracosta)) via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request. 17O Which of the following is TRUE regarding downstream floods? Matchthedefinitionontheleftwiththecorrecttermitisdescribingontheright. But what happens when these waves move towards shore and encounter shallow water? Along the shore, sand and pebbles drift (Longshore drift) in at one angle and out at another. Capacity d. Increased carbon dioxide in the atmosphere. Longshore current is the mean current along the shore between the breaker line and the beach that is driven by an oblique angle of wave approach (see Figure 5.17). Due to shallower water, waves begin to slow down as their energy comes in contact with the sea floor. Waves approaching a beach at an oblique angle _____. c. A floodplain. The pattern of wave crests illustrates the effects of an irregular coast on approaching waves. 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. 3.In Figure 7A-1, waves arrive onshore at a right angle. B. 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 . The formation of Mach waves is described. A. The energy of the breakers has both a perpendicular and a parallel component to the shoreline. 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? Select one: C. Bed load The wave is incident from Region 1. Additionally, MODIS SST inversion results were used to explore the effects of typical cold waves on the Yangtze Estuary's temperature field through the application of a temperature profile . d. when winds are strong. An ____ is a place where fresh and salt water mix, such as a drowned river valley along a submergent coast. Figure 5.7.1: A TM uniform plane wave obliquely incident on the planar boundary between two semiinfinite material regions. Using what you may already know, identify the meaning of the suffix of medical terms. A drainage basin. c. likely to decrease downstream in arid regions and increase downstream in temperate regions. In this way the wave is refracted (bent) so that it crashes on the shore more nearly parallel to the shore. This must be a youthful stream because it meanders, and meanders are a sign of youth. True or False, An echo sounder operates by measuring the time required for ________. a.is straight. True or false, The daily tidal range is of the least magnitude during b. B. marine terrace nissan cube for sale california; good standing with secretary of state; fc . Longshore (littoral) drift is the movement of material along the shore by wave action. B. transpiration D. B/c the thermocline acts as a barrier to the mixing of surface and deep waters, External processes that occur at or near Earth's surface and are powered by ________. If the. Marine terraces in coastal California are evidence that this coastal area is emergent. Your email address will not be published. C. thermocline; pycnocline Effectively stop all flooding, as along the Mississippi River. Waves will bend or refract towards the shallow water to conserve its energy. For mathematical convenience, let the interface lie exactly in the xy plane. d. all of the choice are correct, a. the land is being tectonically uplifted and is rising faster than the sea, What wave process dominants on irregularly shaped coastlines with rocky headlands and recessed embayments? Select one: b. Water flows through the pipe CCC at 4m/s4 \mathrm{~m} / \mathrm{s}4m/s. You will never see a wave wash up on a beach at a . Articles. This makes the large waves of a point break ideal for surfing, while water is calmer in a bay, which is where people would launch a boat. c. The oceans. d. Sediment trapped in a reservoir behind a dam. Barrier islands are common on the Gulf Coast but rare or absent along the Pacific Coast of the United States. RGB) band orthomosaics of a larger nearshore area . When waves approach a beach at an oblique angle, resulting in a lateral movement of water along the shoreline a ___________ may develop. d. The size of a flood and its recurrence interval are inversely related; the larger the flood, the shorter its recurrence interval. It happens when waves approach the beach at an angle. C. barrier island The waves ultimately hit the beach at an angle (oblique to the beach) and this leads to the formation of the longshore current. LO1.3\textbf{ Identify the meaning of the word by the suffix. B. phyllite An oxbow. Fine sediment carried in suspension. Identify the statement that best describes the effects of urbanization on stream flow as shown in the diagrams. Usingwhatyoumayalreadyknow,identifythemeaningofthesuffixofmedicalterms. What happens as waves approach shore? D. Sheeting if exposed plutons of granite, Infiltration adds water to ________. b. of the beach affected by the uprush and backrush of waves. A. spit The Crag had been her home for more than twenty . Post your homework questions and get free online help from our incredible volunteers, The reason behind your emotions, according to Hippocrates. This process is easy to see when waves approach a beach on an angle. d. Long shore current. 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. Select one: A. the fetch B. the wind speed C. the length of time the wind has blown D. all of the above, Waves begin to "feel bottom" when the depth of water is ________. Oblique waves are disturbances that propagate by molecular collision at the speed of sound. D. a radar pulse to travel from a satellite in orbit around Earth to the sea surface and back, The height, length, and period of a wave depend upon ________. The water beneath a wave is disturbed to a depth of one-half the wavelength, and a wave is slowed when it approaches shallow water. Click to view larger image. C. cold, nutrient-rich c. only spilling breakers occur, producing very little erosion, even over millions of years In a sandy beach community, ghost crabs and beach flies occur within. A. a laser beam to travels from a ship to the seafloor and back Select one: A. the distance between the trough of a wave and the still water level B. the circular pattern made by water particles when a wave . d. Ozone. Beach drift and longshore currents only develop when waves direction of approach is perpendicular to the shoreline. With around-the-clock expert help and a community of over 250,000 knowledgeable members, you can find the help you need, whenever you need it. B. thermocline; isotherm D. The main channel splits into a number of distributary channels. An oxbow. a. Longshore currents are formed when incoming waves approach the shore at an oblique angle. Seasonally, sand is moved onshore and offshore. d. Increased carbon dioxide in the atmosphere. See Page 1. d. All of the choices are correct. b. Methane. a. Decreases with a warming climate because of clouds that result from increased evaporation of sea water. A. shallow to deep water waves; the underlying pulse of a rhythm; waves approaching a beach at an oblique angle; boba fett columbia jacket; roundworm infection treatment; leena maria paul wiki; haggar flex dress pants; honda cr-v under $20,000; brandon garden center. As much as 60% of the energy of waves approaching the canyon normal to its axis was reflected, except for waves twice as long as the canyon width, which were transmitted across with no reflection. 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Explaination: Longshore cu . Figure 12.37. When waves approach the shore they will touch bottom at a depth equal to half of their wavelength; in other words, when the water depth equals the depth of the wave base (Figure 10.3.1). This code should print each token in the string followed B. near the equator, where moist air rises (because it is hot and less dense) up, away from Earth's surface A. the zone of deposition Increases in volcanic ash in the air. Were getting closer to the beach yeeeow! Select one: image ___ are low lying zones that are alternatively covered by water during flood tide and exposed following ebb tides. Select one: Select one: On the slide, a supersonic flow at Mach number M approaches a shock wave which is inclined at angle s . The prevailing wind (the direction it usually blows from) causes waves to approach the coast at an angle. 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 ____. This is due to wave refraction. a. A bay mouth bar is an example of hard stabilization. ________ is the innermost tissue layer in an artery. in the medical field. c. results in a opposing conditions compared to the factor that caused change in existing conditions; i.e. Oblique waves may eventually coalesce and form oblique shocks or spread out to form an expansion wave. D. sea stack, Why is productivity low In tropical regions? A. Intrusion of magma Deep ocean currents are driven by thermoheline circulation rather then prevailing winds. b. Headlands projecting out into the sea. b. Glacier ice. Nevertheless, in the CWS case, the growth of wave height stimulates nonlinearities, so the merging of bars is much stronger for waves of 1.25 m than for waves of 1 m and this leads to A solution with a 25% dextrose concentration is diluted 15\frac {1}{5}51. D. when competence suddenly decreases along a river, ________ make up the suspended loads of most rivers and streams. During a storm, Select one: a. Explain why this is so. b. curves toward the shore. B. tombolo 330. GEO 101 Module 5 QUIZ: Mastery Exercise/Ques 1 / 1 pts tion 1 Which of the following best describes the movement of sand parallel to the shore? C. continental shelf 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. Select one: A. wave-cut platform B. sea stack C. marine terrace D. barrier island, Fetch is ________. Question: 5. Select one: A. They also release it to the atmosphere during ________. The potential of the wave to diffract is larger with a longer wave period. . A. sea arch A. The larger the breaking waves, the longer the beach and the more oblique the wave approach, the stronger is the longshore current. A. the steppe lands of southern Russia, Ukraine, and Kazakhstan A. the fetch Remember that in deep water, a waves speed depends on its wavelength, but in shallow water wave speed depends on the depth (section 10.1). When waves approach a beach at an oblique angle? The top of the wave topples over the base because the wave speed decreases due to friction with the sea floor, hence the waveform is not sustained. d. protons; neutrons. a. constant for the length of the stream. Mar 29, 2018. 100% (1 rating) Answer: C. longshore current. D. Salinity, Erosional retreat of a(n) ________ leads to enlargement and extension of a wave-cut platform in the inland direction. Initial displacement of the sea floor is calculated in . C. fault breccia and graphitic schist 0. Waves don't always flow towards the shore, it just appears that way. Cold currents can trigger desertification because they stabilize air that might otherwise rise and generate precipitation. Longshore currents are generated when a "train" of waves reach the coastline and release bursts of energy. However, the wave still contains the same amount of energy, so while the wavelength decreases, the wave height increases. b. Los Angeles receives water from 2 aqueducts, Organisms such as algae and bacteria that drift with ocean currents are known as. A. the atmosphere c. when winds blow on-shore The water in a longshore current flows . Objects floating in the longshore current move in a zigzag pattern up and down the beach as it moves down current. C. cause beach drift (nair = 1.0) onto water (nH2O = 1.327) at 53 off the normal. A. multithermal A. cause hard stabilization B. cause coasts to switch from submergence to emergence C. cause beach drift D. make tides rise and fall. Accessibility StatementFor more information contact us [email protected] check out our status page at https://status.libretexts.org. A. b. Wave height increases because of strong winds. Incorrect 13.2 Longshore Transport Modified from "Physical Geology" by Steven Earle* We learned in section 10.3 that refraction causes waves to approach parallel to shore. Select one: C. schist The zigzag movement of sand grains along a beach is ________. Which of the following shoreline features is a result of deposition? c. Reduce stream stages by moving water faster. The daily tidal range is of the least magnitude during _____. Question 39 2 / 2 pts Upwelling, the rising of water from deeper layers of the ocean, is a wind-induced movement that brings ________ water to the surface. This will cause that shallower part of the wave to slow down first, while the rest of the wave that is still in deeper water will continue on at its regular speed. C. the Empty Quarter of the Arabian Peninsula term it is describing on the right.}} Often results in more, rather than less beach erosion. The majority of sediment is transported in the surf Themedicaltermsbelowarecommonlyusedbypeoplewhoarenotnecessarilyinthemedicalfield. D. All of these, Upwelling, the rising of water from deeper layers of the ocean, is a wind-induced movement that brings ________ water to the surface. Swell Forecasting- Swells Hitting New Zealand. This is a common occurrence during small east swells. As this sheet of water moves on and off the beach, it can transport beach sediment back out to sea. d. Diagram B shows a stream responding faster and more intensely to a rainfall event. Water particles move in a straight line, in the same direction that the wave is moving. C. equal to the fetch At this point their behavior will begin to be influenced by the bottom. A wave front approaching shore will touch the bottom off of the point before it touches bottom in a bay. Refraction can also explain why waves tend to be larger off of points and headlands, and smaller in bays. B. B/c the low density of the water makes it hard for plankton to float near the surface If you were swimming in the ocean along this shoreline, which way would the longshore current carry you? c. Downstream floods can occur even if prolonged rain events happen upstream B. Amphibolite Select one: The current is called longshore current. c. Base level. C. Spring tides May, if breached, trap floodwaters behind them. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. b. A flood event of that size has a 1 percent probability of occurrence in the next year. A. pycnocline; thermocline Select one: A. move in opposite directions B. are found only in deep water, and never close to the shore C. are oriented at 90 to each other D. both have net movement that is parallel to the shore, Which of the following shoreline features is a result of erosion? Award: 1.00 point1.00 point During a storm, Overall water level falls due to the low air pressure associated with storms. fetch is _____. You visit a coastal area for the first time. d. If a cutoff were to form across the neck (from X to Y), an oxbow lake would be created. Most of the waves discussed in the previous section referred to deep water waves in the open ocean. A. A depositional feature formed when a fast-flowing stream joins a slower one or a mountain stream flows out into a plain is An optimized split-window algorithm was used to invert the Yangtze Estuary's temperature field during a cold wave process. B. continental rise The prevailing wind (the direction the wind ususally blows from) causes waves to approach the coast at an angle. Which factor is the most important at the beginning of a track or swimming race? As a wave moves toward the beach, different segments of the wave encounter the beach before others . Orthogonals are lines drawn perpendicular to the wave crest and can be drawn on wave fields to reveal the transmission of wave energy. air pollution leads to global warming leads to shrinking water supplies, etc. First and foremost, interventions such as self-monitoring, self-instruction, and behavioral Dr. Dreuf suggests that adolescents behave in sometimes reckless ways because they are motivated by. Increased cloud cover. warming creates cooling, c. results in a opposing conditions compared to the factor that caused change in existing conditions; i.e. c. Traps infrared rays and thereby promotes global warming. She's somewhat aware of their Changing the location of fields in a pivot table is known as: Mannock Company budgeted $400,000 for employee training, but actually spent only $300,000. Select one: For wave rays encountering perpendicular a shallow headland does the width of the shallow . d. A delta. Select one: The movement of sand along the shoreline is known as beach drift. As the tide rises, water flows in toward the shore ebb tide. the distance over which the wind blows over open water. Which of the following would be associated with turbidity currents? Select one: Now all of the initial wave energy is concentrated in a relatively small area off of the point, creating large, high energy waves (Figure 10.3.6). B. marble and quartzite Waves approaching a beach at an oblique angle ________. Flooding potential for a stream is less after urbanization than before. B. the Sahel along the southern margin of the Sahara Desert All of the following could cause global cooling except beach nourishment is expensive . A. cosmic rays Bed load. D. freshwater that is readily available to humans, Ephemeral streams ________. Longshore currents develop when waves approach a beach at an angle (Figure 12.37). Often breakers will start to curl forwards as they break. C. a radar pulse to travel from a ship to the seafloor and back To measure wave period, the best tool to use would be a ruler. C. in cold, polar regions Longshore currents develop when waves approach a beach at an angle (Figure 12.37). Select one: A. hard stabilization makes the coast more scenic for recreation B. beach nourishment is permanent C. beach nourishment is expensive D. hard stabilization may increase erosion, Which of the following is an example of "hard stabilization" designed to prevent or retard shoreline erosion? D. Alluvium, There are 3 steps to treat waste water. Geometry of a Plane Wave at Oblique Incidence. Competence Course Hero is not sponsored or endorsed by any college or university. Tidal flats are submerged during ebb tides. B. divide Generally, storm winds determine the size of the waves. When would you expect to see the strongest waves on the coast? This results in the gradual movement of beach materials along the coast. The _____ period is characterized by the creation of large earthen burial mounds. D. Slack water, Which of the following shoreline features is a result of deposition? C. infiltration The Larger arrows represent a larger swell- in this case larger waves will be located further up the beach, while smaller waves will be located closer to the spit. Select one: Question: Figure 7A-1 depicts ocean wave crests approaching the shoreline at oblique angles. Waves begin to "feel bottom" at a depth that is 1/2 of their wave length. Select one: A. the distance between the trough of a wave and the still water level B. the circular pattern made by water particles when a wave passes C. a method of shoreline erosion control D. the distance over which the wind blows over open water, One disadvantage of beach nourishment as compared to hard stabilization is ________. Between a river and it's floodplain you might find, Bones and teeth are an example of _____ sediment The observed reflection is consistent with long-wave theory, and distinguishes between cases of normal and oblique angles of incidence. A. twice as great as the wavelength The isotopic composition of the vapor is influenced by the temperature. Select one: Increases in atmospheric carbon-dioxide levels. Upwelling, the rising of water from deeper layers of the ocean, is a wind-induced movement that brings ____ water to the surface. Considering the figure shown, which of the following statements is TRUE? Geometry for Oblique Incidence (1 of 6) Start with a perfectly flat interface between two materials. Which of the following shoreline features is a result of erosion? Treated waste water is used to recharge groundwater and act as a barrier to seawater intrusion of groundwater. Select one: a. agoraphobia C. are a major agent of erosion in areas of ground moraine The The swash carries the sand and pebbles up the beach at the same angle (usually 45). One disadvantage of beach nourishment as compared to hard stabilization is ________. Longshore currents would likely be strongest during which season? b. Volcanic ash deposits in glacial ice. C. wave-cut cliff cause beach drift and longshore current. C. geothermal heat 4. What is the potential difference between the plates after a sheet of Teflon is inserted between them? C. Desert pavement c. Increases in size and proportion to the size of the stream or river it feeds, for the same climate.
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