Ocean Surface Currents (Slides 1 & 2)
Streamlike movements of water that occur at or near the surface of the ocean are called _____?
Surface Currents
East Australian Current flows northward or southward from the Great Barrier Reef?
southward
When currents meet landforms, they ______?
change direction
______ are stream-like movements of ocean water far below the ocean surface?
Deep currents
Waves are made of two main components, crests and _____?
troughs
Surface currents are controlled by global winds, the Coriolis effect, continental deflections, and ____?
Water Temperature
The East Australian Current does or does not flow along the East coast of Australia?
does
When currents meet landforms, they switch direction. This is known as ____?
continental deflection.
Deep currents are mainly controlled by ______?
increases in water density
_____ is a type of wave that moves through matter and then vibrates our eardrums so we can hear?
Sound
The Gulf Stream transports how many times more water than all of the rivers in the world?
25
The East Australian Current transports how many cubic metres of water?
40 million
Warm water currents begin near the ____ and carry warm water to other parts of the ocean?
equator
What and salinity affect the density of ocean water?
Temperature
A _____ is the distance between two adjust crests or troughs?
wavelength
What blowing across the Earth’s surface creates surface currents?
Global Winds
The East Australian Current is how many km wide?
100 km
Cold-water currents create cooler or warmer climates in coastal areas that would be much warmer?
cooler
Cold air chills the water molecules at the surface, causing them to move closer together or farther apart?
closer together
_____ form because of friction between the wind and the surface of the water?
Ocean Waves
Currents in the Northern Hemisphere turn clockwise while currents in the Southern Hemisphere turn ____?
couterclockwise
The East Australian Current flows how many miles per hour?
4.5
Warm-water currents create warmer or cooler climates in coastal areas that would otherwise be much cooler ?
warmer
The denser water moves along the ocean floor and eventually travels toward the ____?
equator
_____ are waves that require a medium?
Mechanical waves