Currents
Waves
Tides
CURRENTS & CLIMATE
WAVES & TIDES & Currents
100

What main factor is powering surface currents?

The wind

100
The lowest part of a wave is the?
Trough
100
When do spring tides occur?
during the full and new moon
100
this is actually wave that hits the shore at an angle and is capable of building up or tearing down the coastline.
longshore current
100

What direction should you swim if you get caught in a rip current?

Parallel to the beach.

200

Describe deep ocean currents

colder and more dense than surface currents

200
The vertical distance between the highest and lowest part of a wave is the?
Wave Height
200
how often do high tides occur?
two times a day
200

Carries warm water to areas that would normally be cold, thus warming their climates.

What is a warm-water surface current?

200

What force moves sand down the beach?

Longshore drift

300
What do we call the process where an object or current that would normally be going straight, will show a curve to it due to Earth's rotation?
Coriolis Effect
300
The highest part of a wave is the?
Crest
300
how often do neap tides occur?
twice a month
300
Streamlike movements of ocean water located far below the surface of the ocean. Caused by changes in salinity and temperature.
What are deep ocean currents?
300
The periodic rise and fall of the water level in the oceans and other large bodies of water. Caused by the gravitational pull of the sun, moon and earth.
What are tides?
400

What is the warm current that moves north up the East Coast of the United States?

Gulf Stream

400
The horizontal distance between two crests and two troughs of a wave is the?
Wavelength
400
what are the moon phases for neap tide?
1st and 3rd quarter moon
400
Cold, nutrient-rich water rises to the surface. Brings nutrients to help with photosynthesis as well as feed seabirds and fish.
What is upwelling?
400
What is tidal range?
the difference in ocean water levels between high and low tides
500

What powers deep sea currents?

Density and temperature differences. (Thermohaline circulation)

500

What is the main cause of the large type of wave that can cause millions of dollars of damages and floods a large area?

An earthquake

500
What causes tides?
the gravitational pull on the earth from the moon
500
Carries cold water to areas that would normally be warm, thereby cooling the climate.
What are cold-water surface currents?
500
What happens during high tides? (what is the moon doing?)
the moons gravity is pulling ocean water into a bulge