2. Choose the incorrect statement about the motion of water particles in a surface ocean wave.

Surface water particles move in a path about equal to the height of the wave.
Deeper in the wave the size of the path that water particles make, decreases.
In deeper water, the particles only move in circles
In deeper areas, the surface wave motion of the particles ceases.

3. The downward limit (depth) of wave motion is about to

the depth of the wave base or about one half the wavelength.
a depth equal to the wave height or about one half the wavelength.
the depth of the wave base or about twice the distance between crests.
a depth equal to twice the wave height or about one half the distance between crests.

4. As the wave base interacts with the offshore bottom, the waves will

become spaced father apart as they slow down.
slow and become lower.
slow and become slightly higher and steeper on the incoming side.
slow, bunch up and become lower.

5. Choose the incorrect response concerning seismic sea waves.

They are often created by earthquakes and travel at hundreds of miles per hour.
They are called tsunami and appear as large waves, tens of feet high in the open ocean.
They may stir-up the ocean bottom and bunch up and become larger near the coastline.
They are often created by earthquakes and are one meter or so high in the open ocean.

6. The bending of ocean waves is known as

refraction and tends to concentrate energy on wide beaches.
reflection and tends to erode headlands and deposit material between them.
refraction and tends to erode headlands and deposit material between them.
reflection and tends to concentrate energy on headlands which straighten the coastline.

7. Most of the fine sediment along a coast (especially sand) comes from

streams and rivers.
the erosion of headlands.
the erosion of beachlines.
the shallow offshore areas.

8. Sediments are distributed along the coast by

the breakers.
the breakers and longshore currents.
sandspits.
sandspits and swash.

9. Choose the correct choice concerning a comparison between summer and winter beach conditions.

Summer waves are lower, the beach is wider and steeper with more sand.
Summer waves are lower, the beach is narrower and steeper with less sand.
Winter waves are higher, the beach is narrower and steeper with less sand.
Winter waves are higher, the beach is wider and steeper with more sand.

10. Which of the following is not true concerning sea walls?

They threaten the beach itself because they cut off part of the sand supply.
They reflect waves.
They actually increase erosion at the base of the wall.
They are a good long term safe guard for real estate.

11. Perhaps one of the best solutions to beach erosion would be

the construction of jetties.
the construction of breakwaters
to transport sediment around dams or truck it directly to the beach area.
the construction of breakwaters and sea walls.

12. Choose the true statement concerning beach sand according to the video.

Most beach sand rapidly degrades to silt.
Beach sand should be treated as a public resource and regulated.
The same grains of sand remain along a confined area of beach line for decades.
Sand is always lost from a beach area when the tide goes out.

13. Tides are primarily created by the

moon's gravitational pull which, along most coastlines, generates two high tides each day.
moon's gravitational pull which, along most coastlines, generates one high tide each day.
sun's gravitational pull which generates one high tide each day.
sun's gravitational pull which generates two high tides each day.

14. Sea level has risen

about 100 meters since the end of the last Ice Age due to the uplift of the ocean floor.
about 100 meters since the end of the last Ice Age due to the melting glaciers.
over 330 feet since the end of the last Ice Age due to the uplift of the ocean floor.
over 330 feet since the end of the last Ice Age due to plate tectonics.

15. The greenhouse effect is

the "trapping" of heat as it radiates from the Earth's surface by such gases as water vapor and carbon dioxide.
the "trapping" of heat as it radiates from the Earth's surface by such gases as water vapor and sulfur dioxide.
the "trapping" of reflected light as it reradiates from the Earth's surface by such gases as carbon and sulfur.
the "trapping" of reflected light as it reradiates from the Earth's surface by such gases as sulfur and water vapor.

Prepared by: Mike Mitchell

Be sure to review your quizzes before taking the test.