Where in the world’s oceans do we get the largest open ocean wind waves? Why? Wh
ID: 802257 • Letter: W
Question
Where in the world’s oceans do we get the largest open ocean wind waves? Why?
What type of interference causes rogue waves?
constructive
destructive
Which direction does a rip current move? (Hint: time to do some outside research):
along the shore
towards the shore
away from the shore
What causes rip currents?
jetty
headland
two longshore currents colliding
wave direction
Can they be predicted? Explain.
Which direction does a longshore current move?
along the shore
towards the shore
away from the shore
What cause(s) longshore currents?
jetty
headland
two longshore currents colliding
wave direction
Which of the following is true for tsunami (pick all that apply):
deep-water wave
shallow-water wave
produced by earthquakes
produced by landslides
produced by strong winds
considered a rogue (episodic) wave
considered a standing wave
considered a progressive wave
What’s the average height of a tsunami in the open ocean?
Are tsunami dangerous in the open sea? What happens when they reach shore?
Which types of waves have the smallest wavelength, height, and period? (Check the Log Book)
Which types of waves have the largest wavelength?
Explanation / Answer
1) where in the world’s oceans do we get the largest open ocean wind waves? Why?
Storms of equal size can generate much larger waves in the open Pacific Ocean as compared to the other oceans due to the long open distance of water.
2) What type of interference causes rogue waves?
Answer: constructive
Explanation: Different waves can travel at different speed and so they can "pile up" in certain circumstances - known as constructive interference
3) Which direction does a rip current move? (Hint: time to do some outside research)
Answer: away from the shore
Explanation: Once the water is in deeper areas, it can flow back out to sea away from the shoreline. These deeper channels are called rip currents.
4) What causes rip currents?
Answer:jetty
two longshore currents colliding
Explanation: Rip currents are quite narrow and are located in places such as where there is a gap in a sandbar, and also under piers, and along jetties.And also along the shoreline until it finds a suitable exit route back out to the open water, straight out.
5) Can they be predicted? Explain.
No.Rip currents may only occur at certain points of the tide.
6) Which direction does alongshore current move?
along the shore
7) What cause(s) longshore currents?
wave direction
8) Which of the following is true for tsunami (pick all that apply):
shallow-water wave
produced by earthquakes
produced by landslides
considered a progressive wave
9) What’s the average height of a tsunami in the open ocean?
Answer: A tsunami may be less than a foot (30 centimeters) in height on the surface of the open ocean
10) Are tsunami dangerous in the open sea? What happens when they reach shore?
Tsunamis are a threat to life and property to anyone living near the ocean.A series of traveling ocean waves of extremely long wavelengt generated by disturbances associated primarily with earthquakes occurring below or near the ocean floor. Underwater volcanic eruptions and landslides can also generate tsunamis. In the deep ocean, their length from wave crest to wave crest may be a hundred miles or more but with a wave height of only a few feet or less. When it reaches shore its speed is decreased and amplitude is increased.
11) Which types of waves have the smallest wavelength, height, and period? (Check the Log Book)
Answer:capillary
12) Which types of waves have the largest wavelength?
Answer: Tide
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