CH.7

47 terms by canes2612 

Ready to study?
Start with Flashcards

Create a new folder

Advertisement Upgrade to remove ads

The height, length, and period of a wave depend upon ________.

all of these

Which of the following is correct regarding a wave in the open ocean?

none of these

Waves begin to "feel bottom" when the depth of water is ________.

equal to one-half the wavelength

When waves reach shallow water, they are often bent and tend to become parallel to the shore. This
process is termed ________.

refraction

The movement of water within the surf zone that parallels the shore is termed ________.

longshore current

The presence of which one of the following would indicate that the land had been uplifted or that
sea level had fallen?

elevated marine terrace

Which one of the following is a landform created by wave erosion?

sea arch

Chesapeake Bay and Delaware Bay are ________.

all of the above

The movement of sand parallel to the shore ________.

all of the above

One result of wave refraction is that wave energy is concentrated ________.

on headlands projecting into the water

The zigzag movement of sand grains along a beach is ________.

both A and B

A sandbar that completely crosses a bay, sealing it off from the open ocean is a ________.

none of these

A ridge of sand projecting into a bay and often having a hooked end is a ________.

spit

An isolated remnant of wave erosion is a ________.

sea stack

A sand ridge connecting an island to the mainland or to another island is a ________.

tombolo

A flat, bench-like surface cut in rock along a coast is a ________.

wave-cut platform

Fetch is ________.

none of these

Which one of the following structures is built to protect boats from large breaking waves?

breakwater

Which of the following is designed to prevent or retard shoreline erosion?

all of these

Which of the following is a tidal current?

both flood and ebb tide

The energy that drives surface ocean currents such as the Gulf Stream comes from ________.

prevailing winds

A poleward-moving ocean current is ________.

warm

Because of the Coriolis effect, surface ocean currents are deflected to the ________ of their path of
motion in the Northern Hemisphere.

right

Because of the Coriolis effect, surface ocean currents are deflected to the ________ of their path of
motion in the Southern Hemisphere.

left

The daily tidal range is GREATEST during ________ tide.

spring

The daily tidal range is LEAST during ________ tide.

neap

Fetch refers to ________.

a large expanse of open water over which the wind blows and generates waves

How can crashing, collapsing storm waves generate explosive forces and stresses on rocky outcrops
and manmade structures?

Pressurized water and compressed air are driven into cracks and fissures.

Erosional retreat of a ________ leads to enlargement and extension of a wave-cut platform in the
inland direction.

wave-cut cliff

Large estuaries are more common on a ________ coastline.

submergent

A ________ is an isolated remnant of bedrock standing above a wave-cut platform.

sea stack

________ is a strong, parallel alignment of different mineral bands in a metamorphic rock.

Foliation

The horizontal distance separating successive wave crests is called the wave period.

False

Tidal flats are submerged during ebb tide.

False

The turbulent water created by breaking waves is called surf.

True

A baymouth bar is a manmade feature designed to control wave erosion.

False

Although the Sun influences the tides, its effect is considerably less than the effect of the Moon.

True

The energy that creates surface ocean currents comes from prevailing winds.

True

Waves in the open ocean are called waves of oscillation.

True

The addition of sand to a beach has proven to be an economical solution to beach erosion problems.

False

Elevated wave-cut platforms in Southern California are evidence that this coastal area is emergent.

True

The Gulf Coast lacks barrier islands.

False

Groins are constructed for the purpose of maintaining or widening beaches that are losing sand.

True

The largest daily tidal range occurs in association with spring tides.

True

Neap tides occur about the time of the first quarter and third quarter phases of the Moon.

True

As the tide rises, water flows in toward the shore as the ebb tide.

False

A poleward-moving ocean current is considered a warm current.

False

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set