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ocean waves and currents:pam
Terms in this set (40)
any disturbance that transfers energy through matter or empty space.
a disturbance that transfers energy through ocean water.
crests and troughs
what are the two parts of the wave?
the highest point of the wave
the lowest point of the wave
the distance between two adjacent wave crests or troughs.
half the distance between the crest and the trough.
the number of waves produced in a given amount of time.
a measurement of how much time it takes for a wave to pass a fixed point.
wave speed= wave length * wave frequency
what is the formula for calculating wave speed?
what is wave speed measured in?
what type of waves carry energy through matter, such as air or water?
what happens when a wave moves through the water?
waves that crest then crash onto the ocean shore?
what is wave period measured in?
what is the symbol for frequency?
what is frequency measured in?
a series of waves that forms after a volcanic eruption, submarine earthquake, or landslide?
where do most tsunamis occur?
a large volume of water that crashes onto the shore and then rushes back into the ocean after a tsunamis.
what is the source of most ocean waves?
energy decrease with more depth
how are wave energy and water depth related?
how fast a wave travels?
oceans contain stream like movements of water know as these?
ocean currents that occur at or near the surface of the ocean.
give an example of a surface current
continental deflections, coriolis effect, and global winds
give three examples of things that affect surface currents:
they change direction
what happens when a surface current meets a continent?
what is the deflection of a moving object due to earth's rotation?
what powers the surface current?
differences in water density
what causes deep currents to form?
where the density of ocean water increases
where do deep currents form?
Antarctic bottom water
where is the deepest and densest water in the ocean?
a movement of water that results from density differences?
near the north and south poles
where do cold water currents begin?
at the equator
where do warm water currents begin?
the process in which warm surface water is replaced by cold water from the deep ocean.
what does the cold water from the deep ocean contain?
coconuts, sea turtles, and plankton
list 3 organisms that ride the ocean currents:
oxygen, carbon dioxide, and phosphorus
what matter does ocean currents transport?
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