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ESC Modules 9 & 10 Oceanography Flashcards | StudBud
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ESC Modules 9 & 10 Oceanography
ESC Modules 9 & 10 Oceanography
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1
A spring tide occurs when:
All the planets are aligned.
The sun, moon, and earth are all in a line.
The sun and moon are at 90 degrees to each other.
It's springtime and only springtime.
2
At high latitudes the thermocline is
narrower than at low latitudes
about the same as at low latitudes
there is no thermocline at high latitudes
wider than at low latitudes
3
What is this?
Cave
Arch
Stack
Tombolo
4
A thermocline is:
An upward current that brings nutrients to the surface
Water that gets saltier as it gets deeper
Water that gets colder as it gets deeper
Denser water settling at the bottom of the ocean
5
How does an echo sounder work
zap the fish
so you can here your own voice under the water
bounces of the fish
send signal to the sea floor and back to the boat
6
What is the largest ocean?
Pacific Ocean
Atlantic Ocean
Southern Ocean
Indian Ocean
7
What feature is formed and shaped by a longshore current?
beach
meander
mouth
source
8
The edge of the continent that is covered by the ocean.
Mid-ocean Ridge
Thermocline
Ocean Trench
Continental Margin
9
What is this?
Tombolo
Sandbar
Headland
Stack
10
What type of feature is this?
erosional
depositional
refractive
breakwater
11
The highest average salinity amongst the following seas is reported from
Black Sea
Red Sea
Mediterranean Sea
Dead Sea
12
What is the Coriolis effect?
A force that moves objects up and down.
An effect that spins Earth on it's axis.
moves objects to the right in the Northern hemisphere
An effect that moves objects to the left.
13
What is wave refraction
The energy in waves
The bending of waves
The strength of waves
A current caused by waves
14
What is neap tide?
A tide that happens at a 30% angle from the sun
A tide that happens at right angle from the sun
A tide that occurs three times a month
A tide that only happens in certain mouths
15
An Ocean is the same as a Sea.
true
false
16
What is a Sea Stack?
Erosion feature by glaciers
A chimney structure under the ocean
Erosion feature by ocean waves
A deposit caused by waves
17
What ocean is to the East of the U.S.?
Atlantic
Indian
Southern
Pacific
18
Abyssal plains are very flat because
basalt volcanoes on the seafloor produce little terrain
there is no data to show the sea floor
they have flat faults, with planar topography
sediments accumulate to cover the seafloor topography
19
What is this erosional feature?
A bluff
A point
A cove
A headland
20
The total amount of dissolved solids in a solution of ocean water is called__________
Suspension
Solvent
Salinity
Turbidity
21
What is the deepest part of the ocean?
trench
mid-ocean ridge
volcano
continental shelf
22
gently sloping submerged surface extending from the shoreline
continental slope
continental shelf
none of these above
continental rise
23
What is a neap tide?
Normal tides
Greatest difference between tides
jedi
Least difference between tides.
24
What is the Coriolis Effect?
Warm countercurrent that replaces cold offshore waters
Force exerted by the weight of the air above
Winds that blow from the polar high toward the subpolar low
How the earth's rotation effects moving objects (water/wind)
25
What is this?
Headland
Cave
Cliff
Wave cut platform
26
As the speed of a wave decrease, the wave
grows higher
moves in a circle
moves backward
grows shorter
27
What is a Spring Tide?
Least Difference
a tide that happens once a year
hottest difference
Greatest Difference
28
Most of the salt in the ocean is
carbon dioxide
sodium chloride
magnesium chloride
potassium iodide
29
What is a longshore current
Water the flows parallel to shore
Water that moves verticle
Water that moves perpendicular to the shore
Water that moves away from the shore
30
What are Abyssal Plains
Volcanic Peaks the dot the ocean
Deep extremely flat features
The gently sloping submerged surface extended from the shore
Where the Abyssal meets the plains
31
What is a wave?
The matter that requires amplitude, frequency, wavelength.
Increases in speed closer to shore.
When a source of energy causes a medium to vibrate.
A disturbance that transfers energy from place to place.
32
What is the thermocline?
ocean layer of rapid temperature change with density
none of the above
ocean layer of rapid temperature change with depth
ocean layer that doesn't have temperature changes
33
What is the pycnocline?
ocean layer with no change in density
ocean layer where no organisms live
ocean layer of rapid change in density with depth
the highest point of a wave
34
The oceans control the Earth's
catastrophic events
climate
migration of coastal birds
food chain
35
Salinity in the ocean is highest in regions where _______ is high and _____ is low.
precipitation; temperature
precipitation; evaporation
evaporation; precipitation
temperature; evaporation
36
What is a spring tide?
It's the same as a neap tide
A weak tide
A normal tide
A strong tide produced during the full and new moon
37
The oceans cover approximately
40
70
50
60
38
The best modern technique for obtaining high resolution bathymetry of the seafloor is
multi-beam /side scan sonar
seismic bathymetry
rope and weight
satellite altimeter
39
What is the difference between a guyot and a seamount?
Guyots are on land.
Seamounts are on land.
Guyots are eroded seamounts..
Sponge Bob lives in the deep sea trench.
40
What is the most prominent topographic feature on the seafloor?
Coral Reefs
Mid Ocean Ridge
Continental Shelf
Seamounts
41
Which of the following is correct regarding a wave in the open ocean?
waves action stops in deep water
water particles move in an almost circular path
waves do not exist in the open ocean; only near the shore
such waves are called waves of oscillation
42
What type of tide occurs during this phase of the moon?
Spring
Neap
43
The ______ Ocean is the largest.
Pacific
Arctic
Indian
Atlantic
44
What is this?
Tombolo
Baymouth Bar
Harbor
Headland
45
What type of feature is a spit?
Depositional
Long Shore Drift
Rip Current
Erosional
46
The height, length, and period of a wave does not depend upon
length of time the wind has blown
fetch
wind speed
tidal range
47
What does a wave transport?
water
light
sound
energy
48
How many days between a spring tide and the next spring tide?
14 days
28 days
1 day
7 days
49
What is a headland?
Narrow piece of land that projects from coastline to sea
Cliff edge
Marine terrace
Front face of a wall
50
How often does a semidiurnal tide occur?
Twice a day
Twice a month
Once a day
Once a month
51
What is this depositional feature?
A sand bar
Long shore drift
A headland
Calm weather
52
What is this?
sea arch
tombolo
spit
sea stack
