In deep water most waves do not interact with the sea bottom and are called deep-water waves. They occur when water masses slip over one another. A. fissures and cracks Constructive wave interference occurs when several wave crests or troughs coincide. - Constructive Standing waves can be dangerous due to the phenomenon of resonance. Waves affect water to a depth equal to or less than one-half their wavelength. During the spring tide, the Moon, Sun, and Earth would exist in a same straight Interaction with the sea bottom. The type of wave generated by wind is determined by: Waves Break by Spilling Plunging, or Surging (Figure 7-9). Node = Fixed Point, Antinode = maximum displacement (Figure 7-11) As waves enter shallow water: Destructive Waves (Figure 7-6c) choose two. Waves are disturbances that are generated on or beneath the sea surface. As waves enter shallow water: Internal Waves 3.2271010. Life History of Ocean Waves (Cont.) Destructive Waves (Figure 7-6c) Oscillate back and forth about a node i.e., a fixed point. They were principally triggered by __________. How deep do wave motions go into the water, i.e. Wave Motion with Depth (Figure 7-3a) When this value is about 1/7, waves begin to break. Bottom friction alters both the WebSee Page 1. B. Meandering floodplains C. it runs off Chapter 7 Summary Water depths are less than 1/20 the wave length. Two basic motions associated with an ocean wave: Why build them i the first place? Geology Ch 12 Coastlines Flashcards | Quizlet Tsunamis which are seismic sea waves. Progressive Waves Interaction with the sea bottom. http://dusk.geo.orst.edu/oceans/waves.html, Oscillate back and forth about a node i.e., a fixed point. Waves are disturbances that are generated on or beneath the sea surface. The most damaging effect of storms is not necessarily the waves alone, but the waves in combination with storm surge (elevated sea level), created by the winds which pile water up along the shore. - Persistent onshore winds. Wave energy is focused where the lines converge. Answers: A. Click here for ANIMATION D. the open spaces between clay particles in a very impermeable rock Node = Fixed Point, Antinode = maximum displacement (Figure 7-11) Longer wavelength waves travel faster than shorter ones and move ahead of them in a wave train. A. tension labs | - Destructive - Wavelength shortens Waves are disturbances that are generated on or beneath the sea surface. Which part of a coastal area is always under water? They occur when water masses slip over one another. depending on the slope of the bottom They occur when water masses slip over one another. Form when winds blow in one direction which causes water to pile up at one end of a basin. F. lowering of base level Wave energy is defocused where the lines diverge. Standing waves can be dangerous due to the phenomenon of resonance. Oscillate back and forth about a node i.e., a fixed point. Longshore drift can be very destructive to manmade structures. Click the image to view a slideshow and learn more. Longshore currents are affected by the velocity and angle of a wave. When a wave breaks at a more acute (steep) angle on a beach, encounters a steeper beach slope, or is very high, longshore currents increase in velocity. - Differential speed along the crest. Adding water to materials on a slope can reduce ____ and cause mass wasting to occur. The result is amplification of the wave size which can lead to flooding. Which feature of a wave is most important in order to understand the wave base of a wave's motion? Think of sloshing in bathtubs and or swinging in swing It is the energy of the wave, not its mass that is in motion. Higher storm energy in the winter moves sand off the beach and stores it in the nearshore. labs | Waves Break by Spilling Plunging, or Surging (Figure 7-9) All the statements about Western boundary currents are true, except what? As waves enter shallow water their wavelength shortens and their height increases. (Figure 7-6b) select all that apply. Period of wind or tides approximate the natural period of oscillation of the basin. [ home port | [ home port | The most damaging effect of storms is not necessarily the waves alone, but the waves in combination with storm surge (elevated sea level), created by the winds which pile water up along the shore. Wind Generation of Waves As waves enter shallow water their wavelength shortens and their height increases. Answers: A. When this value is about 1/7, waves begin to break. Deep Water Waves (Figure 7-4a) Standing waves can be dangerous due to the phenomenon of resonance. Progressive waves move along the sea surface. Waves Break by Spilling Plunging, or Surging (Figure 7-9) surf | Destructive wave interference occurs when the crest of one wave coincides with the trough of another wave resulting in a cancellation. - Speed decreases ______ streams only flow during rain events or the wet season. (Figure 7-6b) email prof. ] Answers: A. D. What persistent behavior of waves produces longshore drift?
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