ES Chapter 14 Ocean Motions

The longer the wave, the faster the wave moves.

Current that is considered dangerous because the swimmer often becomes exhausted fighting it

Why are there tidal bulges on both sides of the earth?

Prevailing westerlies winds move currents

The oceans are always moving through ________. Which one does NOT apply?

Internal waves occur due to layers of water of different densities.

The longer the fetch, the more energy wind can transfer to the water, and the higher the waves.

Trade winds blow surface currents

What 3 things determine the direction of the Ekman Spiral current?

A repeating pattern of wave energy is called a(n)

The period of a wave is related to its

Which is not a true tide?

Upwelling waters are rich in nutrients that help all kinds of marine life.

The deepest depth below the ocean's surface that is affected by the wave's passage is the

What color on maps indicates a cold current?

The period of a wave is the time between one wave crest and the next passing a stationary point

What is the most common cause of tsunami waves?

Ocean gyres flow _______________ in the Northern Hemisphere.

Currents tend to form great circling flows in oceans due to the continents called

What is a tombolo?

Upwelling is common in the center of gyres.

Cold air holds more moisture.

A breaker is

What is a solar tide?

Subsurface currents (deep currents) are caused by

What are tide gauges?

Solar tides are more significant than lunar tides.

Where is the Antarctic Circumpolar Current?

Unusually high tides can occur

These waves have wavelengths that are about half the circumference of the earth!

What is a tide table?

When the sun's gravity works with the moon to form a higher-than-usual tide, it is called a

The Ocean Garbage Patch is harmful for marine animals, and it can be harmful to humans, too.

Occurs when sea level is higher than average as surface currents cause the ocean to pile up

Deep-water wave speed depends completely on water depth, rather than wavelength.

The center of ocean gyres and small eddies have higher sea level than outside the gyre.

Daily or twice-daily changes in local sea level due to the moon's gravity are called __________

If you wanted to go surfing, you would check what to determine the time of high tide?

Surface currents are usually long-lasting and can transport water long distances.

Subsurface currents are much larger and move much faster than surface currents.

Downwelling occurs when sea level is lower than average and dense, cold, salty water moves up

A groin is a form of

Ocean currents carry away about 1/3 of the solar heat deposited in the oceans near the Equator.

Surface currents are set in motion by prevailing winds.

Ocean surface currents are affected by the rotation of the earth through

The direction of a rip current is

Kuroshio currents and the Gulf Stream are cold-water currents.

An underwater mudslide or lahar is a

Which tide is the most common?

What are advantages and disadvantages of tidal power generation (check all that apply)?

Which is NOT a kind of landform caused by erosion.

What two sets of winds affect surface currents (pick two) ?

A current that flows parallel to the shore due to a repeated sawtooth motion

The most significant of the deep density currents are the

The fetch is the deepest depth below the ocean's surface that is affected by the wave.

What are eddies?

Downwelling waters carry oxygen-rich water to deep-ocean life.

Waves move faster in shallow water.

Generally, waves do not move water great distances.

The distance between the crest and the trough of a wave is called the ____________

The change of current direction with depth is called the

The distance that wind blows over the water's surface in one direction is the

When do very high spring tides occur?

What are two warm currents that flow northward?

What are the lower-than-normal tides called when the sun is perpendicular to the earth + moon?

How do we measure ocean wavelength?

Wave amplitude is more helpful than wave height for studying water waves.

Most tides are