Wind/Density/Currents/Oceans Flashcards Preview

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Flashcards in Wind/Density/Currents/Oceans Deck (64)
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1

measures distance from the equator, north to south horizonatal lines

latitude

2

caused by wind, up to 400 cm deep, affects 10 percent of ocean water, moves 1-2m per second

Surface currents

3

measures distance from the prime meridian, vertical lines east to west

longitude

4

0 decrees latitude, recieves the most direct sunlight

equator

5

0 degrees longitude, is in Greenwich, England

prime meridian

6

the perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction.

wind

7

the pressure within the atmosphere of Earth.

air pressure

8

make a “square circle”, they transfer heat from the equator toward the poles.

convection currents

9

an effect whereby a mass moving in a rotating system experiences a force acting perpendicular to the direction of motion and to the axis of rotation.

coriolis effect

10

cirular patterns of cuurents are called

gyre

11

Deeper than 1000m
Affect 90% of ocean water
Move SLOWLY (1-2 m/day)
caused by density and gravity

deep currents

12

At these deep-water formation areas, this exceptionally dense water sinks to the bottom of the ocean, driving what is known as the “global conveyor belt,” a global pattern of circulation within the oceans.

thermohaline circulation

13

the degree of compactness of a substance.

density

14

Occurs when pulled up to the surface, bringing nutrients from the ocean floor, contain abundant marine life because of the high amount of nutrients!

upwelling

15

the amount of salt

salinity

16

photosynthesizing microscopic organisms that float in sea water), which in turn provide a food source for millions of fish. help produce oxygen

phytoplanktin

17

what is the fuel that drives wind and ocean currents

heat from the sun

18

How is heat different from temperature

heat is thermal energy while temperature is kinetic energy

19

when heat is transferred through a liquid/gas

convection

20

example of convection

camp fire

21

when heat is transferred through a medium without changing the medium

conduction

22

example of conduction

impulses along the nerves

23

when heat/energy travels as a wave and does not need a medium

radiation

24

example of raditaion

UV rays

25

How is heat transferred to the earth

Radiation

26

what other ways is heat transfered around the earth

convection and conduction

27

Why do we have day and night

The earth roates around the sun, leaving the sun shining on the part that faces the earth

28

why do we have seasons

Either the northern or southern hemisphere is tilted towards the sun

29

Why is the equator warmer than the poles

it recieves the most direct sunlight

30

what air rises and why

warm because it is less dense