These are the two properties that affect density of ocean water
What is temperature and densty
100
Motion of water particles due to action of waves
What is a circular motion
100
Which of the following shows the chain of energy transfer that create surface currents on the ocean?
a. solar energy-> wind energy-> surface currents
b. wind energy-> solar energy-> surface currents
c. tidal energy-> wind energy-> surface currents
What is a. solar-> wind -> surface
100
Which feature results from two oceanic plates pulling away from each other?
a. trench b. abyssal plain c. continental rise d. mid-ocean ridge
What is d. mid-ocean ridge
200
The three main temperature layers in the ocean?
______ zone, thermocline, _____ zone
What is surface.... deep
200
The source of most ocean waves ?
a. movement of tectonic plates b. gravitational pull of the moon c. energy of ocean currents d. motion of the atmosphere
What is d. motion of the atmoshpere
200
The three factors that affect surface current directly
_______ wind, Coriolis effect, ________ deflection
What is surface / continental
200
Scientists use this to map out the ocean floor
What is sonar
300
This layer in the ocean's temperature drops faster than any other layer
What is thermocline
300
Ocean waves form when __________ transfers energy to the ocean ________
What is wind/floor
300
What factor causes surface currents north and the south of the equator to move in different direction?
What is Coriolis effect
300
The primary source of energy that generates most ocean waves?
a. atmosphere b. asteroid impact c. volcanic eruptions d. earthquakes
What is a. atmosphere
400
The edge of the continent that is covered by the ocean
What is continental margin
400
Which of the following types of wave are ocean waves?
a. seismic b. mechanical c. compression d. electromagnetic
What is b. mechanical
400
When water becomes denser and sinks this current can travel through all the oceans of the world
What is deep ocean current
400
Two ocean plates are pushing against each other. One plate then begins to slide beneath the other... which feature is this?
a. rift zone b. trench c. abyssal plain d. mid-ocean ridge
What is b. trench
500
Which of the following is a source of the ocean's dissolved salt?
a. buildup of shells on the ocean floor b. melting of glacial ice at the poles c. agricultural runoff as pesticides and fertilizer d. eruptions through undersea volcano vents
What is d. eruptions through undersea volcano vents
500
How does the amplitude of the wave change when it gets near the shore?
a. decrease in height b. decrease in length c. increase in height d. increase in length
What is c. increase in height
500
What causes convection currents to form in the oceans?
a. continental deflection b. deep current c. upwelling d. differences in water density
What is d. differences in water density
500
As a wave becomes a breaker... how does the motion change?
a. less circular b. stops being circular c. straight line d. more circular