20 Flashcards


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created 7 years ago by giacometto
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1

If the wavelength of a set of waves is

20 feet long, how deep is the wave

base?

10 feet below the surface

2

How shallow must the ocean floor be

for waves to start to break for a wave

set with a wavelength of 20 feet?

Waves will break when the ocean floor

is 10 feet below the surface.

3

Which of the following distances

represents one wavelength of the

wave set drawn below?

A to C represents a wavelength

4

A set of waves are moving from east

to west. Assuming the boat is in deep

water, which of the following would

describe the motion of a boat during

the passage of these waves?

The boat would move up and down in

the water.

5

Which of the following statements

describe what happens to sediment

when a longshore current meets a

jetty?

Sediment is eroded on the downcurrent

side of the jetty because water

is starved of sediment in this location.

-Sediment is deposited on the upcurrent

side of the jetty because water

moves slower in this location.

6

Which of the following describes the

general pattern of movement of sand

on a shoreline?

Net sand movement is parallel to the

shore.

7

Which of the following coastal

features is not a characteristic of a

submergent coastline?

Wave-cut platform

8

Using the choices provided, identify

the erosional features and the

depositional features.

Barrier Island

Depositional

9

Using the choices provided, identify

the erosional features and the

depositional features.

Sea Arch

Erosional

10

The erosional retreat of a coastal cliff

will lead to the enlargement of a

________.

Wave-cut platform