Tides
The Moon’s gravity exerts a strong pull on Earth. This causes
Lunar Tides
Name one positive aspect of Tidal Power Generation
1. non-polluting
2. renewable
3. more reliable than wind
What current affects water up to a depth of several hundred meters.
surface currents
Ocean currents carry warm and cold water ________ from their source
away
_________ is the repeated motion of matter transferring energy from one place to the next
wave
When the Moon, Earth, and the Sun are lined up together, the combined pull of the Sun and the Moon causes
spring tides
What is the source of Tidal Power Generation
ocean tides
– effect of earth’s rotation on the direction of winds and currents.
Coriolis effect
The ______________ is a warm current that flows north from warm areas
Gulf Stream
Each particle moves up and down called an
oscillation
The area of ocean away from the Moon are the
What issue could tidal power generation cause with boats in the ocean?
They would interfere with boat traffic being placing in the line of driving.
Currents flow in the shape of the basin called
gyres
Deep currents move and _________ water around the world
mix
Measure the distance from the crest to crest of the next wave from trough to trough
wavelengths
The ocean bulges are known as
high tides
How could tidal power generation effect life under water in the ocean?
Which direction of the equator flows counterclockwise?
South
1. rich in nutrients
2. good for phytoplankton growth
3. best for fishing
Measure of how many waves pass a certain point in a certain amount of time
frequency
When the Sun, Earth, and the Moon form a right angle this creates a
neap tide
Do many countries have tidal power generation?
No few do
The deeper the current, the more it twists. Called the
Ekman Spiral
The cause of downwelling
Occurs when sea level is higher than average as surface currents cause the ocean to pile up. The extra weight pushes the deep currents along the ocean floor
shallow water waves cause what when they reach the surface?
breakers