Ocean Motions

Where does downwelling occur?

• by the Poles

• Alaska

• Warm places

• Hawaii

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Why is it fortuitous (a good thing) that downwelling happens where it does?

• cold water can dissolve more oxygen

• warm water can dissolve more oxygen

• it is a good place

Deep currents are a combination of the Ekman spiral effect and what other effect?

• Deep water

• Density tides

• Density currents

• Deep currents

What is the bottom of the wave called?

• trough

• crest

• height

• depth

What is the height of the wave called?

• wave height

• wave depth

• wave length

• wave protection

Tags

NGSS.MS-PS4-1

How is a water wave’s depth related to its wavelength?

• they are the same thing

• they are both caused by earthquakes

• Wave depth is usually about half the wavelength

• Wavelength is usually about half the wavedepth

What is a wave period?

• The time between one wave crest and the next

• half the wave height

• the distance that wind blows over the water’s surface

• Internal waves

Tags

NGSS.MS-PS4-1

What is a wave fetch?

• A wave whose base is above the ocean bottom

• When the wave’s height reaches 1/7 of its length, it breaks

• The time between one wave crest and the next

• the distance that wind blows over the water’s surface

What causes splash waves

• things falling into the ocean

• meteor impact

• glacier

• All of the above

What causes internal waves

• meteor impact caused by other world people taken over by the darkness

• people

• the wind

• When waves move through layers of water with different densities