Earth Science Chapter 25 Flashcards
What is a characteristic of the Antarctic bottom water?
High density
Waves strike the coastline head on instead of at an angle as a result of what?
Refraction
A vast area of calm, warm water in them North Atlantic is the what
Sargasso Sea
Two identical points on consecutive waves pass a given point in one what?
Wave period
Factors that determine the size of a wave are wind speed, fetch and what
The length of time the wind blows
What is the distance that wind blows across an area across the sea to generate waves
Fetch
What is the major cause of tides
the gravitational pull of the moon on earth and its waters
The title current that flows toward the ocean is called what
Ebtide
Deep currents are caused by what
Differences in density of ocean water
The highest point of a wave is its what
The lowest wave is the
Crest
trough
The force that causes tides is what
Gravity
The word for the curving of the paths for ocean currents and winds due to earth rotation is what?
Coroilis effect
The affect of wind energy on waves is what
It makes waves larger
Why are sandbars formed
Longshore currents
Very large waves are usually the result of what
A long fetch
Three factors that affect surface currents are what
Earth’s rotation, air, and the location of the continents
caused by an earthquake on the ocean floor, a volcanic eruption, or an underwater landslide
Tsunami
horizontal movement of ocean water near or at the surface, caused by wind
Surface current
occurs in water as a periodic up-and-down movement
Wave
forms when the top of a wave topples over
Breaker
Which of the following causes gyres to form?
Coriolis effect
forms when winds blow off the crest of a wave
Whitecap
tide that occurs during the full moon and new moon
Spring tide
huge circles of moving water
Gyre
