Tides
The patterns of rise and fall in the tides repeat this many times a day
What is twice? (2)
These are the 2 objects that create the tidal force on earth
What are the sun and moon?
the time of the least difference between tides
what are neap tides?
result of winds that are transferring energy from the atmosphere to the ocean
what are waves?
this is the main function the tides provide for marine animals
what is reproduction help?
this force creates the tides
what is gravity?
large objects have this kind of gravitational pull, compared to small objects
the time of the most dramatic tides
what are spring tides
wave motion only involves this layer of the ocean
what is the surface layer?
area between high tide and low tide
what is intertidal zone?
vertical distance between high tide and low tide
what is the tidal range?
one of these causes more gravitational pull: closer objects or farther objects
what is closer?
tides occur approximately this long apart
what is 12 hours and 15 minutes?
name 2 things that affect the currents
what are the Coriolis Effect, global prevailing winds, salinity, tides, rain, wind, storms, runoff, and ocean topography?
organisms in this zone are almost always exposed to air, only gets wet during storms, only few species found in this area
what is 400x
gravitational pulls of fluids cause bulges or these
what are swells?
neap tides occur when the sun moon and earth are this angle to each other
what is 90 degrees or perpendicular?
When waves reach a beach or coastline, release a burst of energy that generates this kind of current
what is longshore?
area submerged twice a day during high tides but otherwise exposed to light, air, and predators
high intertidal zone
motions of the sun and moon, constantly changing positions, affects these 2 aspects of tides
What are magnitude and timing?
the two factors that determine the strength of gravitational attraction
what are mass and distance?
this is the amount of time it takes for the moon to "catch up" to the earth
what is about 50 minutes?
longshore currents form circular patterns in the region of breaking waves
what are surf zones
large expanses of muddy areas affected by tides and common organism there
what are mudflats? and fiddler crabs?