Waves
Tides
Currents
Previous Units (Chemistry & Geology)
Random
100

the two ways to generate ocean waves

wind and seismic activity

100
Tides are caused by what two things?
What are the gravity of the sun and moon
100

What are the two types of currents?

Surface & deep

100
the type of plate boundary that pushes two pieces of crust together --> <--
What is convergent plate boundary
100
Name at least 1 factor that affects wave size

wind speed

water depth

beach slope

fetch

200

the number of waves passing a point in a certain time

What is the frequency

200
what are the three types of daily tide cycles?
What are diurnal, semidiurnal, and mixed.
200

Surface currents are driven by-

Deep ocean currents are driven by-

horizontal wind

vertical thermohaline circulation

200
the only layer of the Earth that is completely liquid
What is outer core
200
where would you want to be if a tsunami generating earthquake struck nearby?
high ground
300

As the frequency of a wave increases, what happens to the wave period?

the period decreases

300
Ebb tide is outgoing or incoming tide? Flood tide is outgoing or incoming tide? What is the tidal range?
Ebb- outgoing Flood- incoming Range- difference between high tide and succeeding low tide.
300

This type of current travels perpendicular to shore because of wind and can be dangerous for swimmers and surfers?

rip current
300
the name of the technology used to map the ocean floor depth
What is sonar
300
the moon and sun both create tides, but which has a larger effect on tides? why?
What is the moon, because it is closer to Earth.
400

Draw a wave and label the crest, amplitude, trough, and wavelength.

crest- top part of wave trough- lowest part of wave wavelength- length of one crest to the next crest amplitude- height of the wave

400
Draw the position of the sun and moon during Spring Tide and Neap Tide
Spring Tide- moon and sun parallel (aligned) with Earth Neap Tide- moon and sun perpendicular to Earth
400

This is a large circular flow of water, and there are 5 major ones in each ocean basin

Gyre

400
These two factors influence temperature of sea water at any given place in the ocean
What are latitude and depth
400
This type of wave forms a white cap, and is ideal for surfers
breaker wave 
500

Which has a larger wavelength, a wind driven wave or a tsunami wave? Which has a longer period, a wind driven wave or a tsunami wave?

larger wavelength= tsunami longer period= tsunami

500

How many high and low tides do each of the following have: diurnal? semidiurnal? mixed?

diurnal- 1 high 1 low semidiurnal- 2 high 2 low mixed- 2 high 2 low, tidal heights are different.

500

3 types of surface currents, & briefly explain each one

  1. Longshore Currents- parallel to shore because of waves, cause erosion

  2. Rip Currents- perpendicular to shore because of wind, can be dangerous 

  3. Upwelling Currents- occur due to the rising of cold, nutrient rich water- important for coastal ecosystems productivity

500
water is densest at this state and least dense at this state
densest- liquid least dense- gas (vapor)
500

Jekyll Island experiences a diurnal tide. The high tide at Jekyll Island is measured at 10 am to be 8 feet. The tidal range is 4 feet. What would be the measurement of the low tide, and what time would it occur?

Low tide would be 4 feet and would occur at 10 pm.

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