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WorksheetsShorelines
Total questions: 50
Worksheet time: 25mins
The height, length, and period of a wave depend upon ________.
the length of time the wind has blown
the wind speed
the fetch
the length of time the wind has blown, the wind speed, and the fetch
Fetch is ________.
a method of shoreline erosion control
the distance between the trough of a wave and the still water level
the circular pattern made by water particles when a wave passes
none of these
Waves begin to "feel bottom" when the depth of water is ________.
equal to one-half the wavelength
equal to the wavelength
twice as great as the wavelength
three times as great as the wavelength
The horizontal distance between successive crests (or troughs) is called the ________.
period
fetch
wavelength
interface
At what depth of water would waves "feel bottom" if their wavelength is 10 feet?
1 foot
2.5 foot
5 feet
20 feet
Which of the following statements is true about waves?
Waves "feel bottom" at a depth of 1/3 their wavelength
The wave shape moves through the water, while individual water particles move in a circle.
The wave period is the length between two successive wave crests.
The distance the wind has blown across open water is called the interface.
Water flowing back down the beach after a wave has broken is known as ________.
surf
swash
backwash
outwash
) One result of wave refraction is that wave energy is concentrated ________.
on headlands projecting into the water
in the recessed areas between headlands
in estuaries
none of the above
When waves reach shallow water, they are often bent and tend to become parallel to the shore. This process is termed ________
oscillation
refraction
translation
reflection
The movement of water within the surf zone that parallels the shore is termed ________.
tidal current
salinity current
beach drift
longshore current
The zigzag movement of sand grains along a beach is ________.
caused by obliquely breaking waves
called beach drift
caused by obliquely breaking waves and called beach drift
none of the above
The movement of sand parallel to the shore ________.
is created by waves approaching at an oblique angle
may create spits
is achieved by longshore currents
is created by waves approaching at an oblique angle, may create spits, and is achieved by longshore currents
Longshore sand transport and longshore currents depend on waves impinging ________ to a shoreline.
parallel
perpendicular
obliquely
none
Currents within the surf zone that flow parallel to the shore are known as ________ currents.
sideshore
offshore
backwash
longshore
Concentrated movements of water that flow opposite the direction of breaking waves are called ________.
longshore current
offshore currents
rip currents
tidal currents
Which one of the following is a landform created by wave erosion?
spit
estuary
tombolo
sea arch
Erosional retreat of a(n) ________ leads to enlargement and extension of a wave-cut platform in the inland direction.
wave-cut tombolo
wave-cut cliff
wave-cut barrier beach
offshore, wave-cut, breakwater bar
A sand ridge connecting an island to the mainland or to another island is a ________.
jetty
tombolo
breakwater
sea stack
A flat, bench-like surface cut in rock along a coast is a ________.
sea stack
tombolo
wave cut platform
spit
An isolated remnant of wave erosion is a ________.
spit
jetty
groin
sea stack
A ________ is an isolated remnant of bedrock standing above a wave-cut platform.
sea spit
sea rampart
sea span
sea stack
A sandbar that completely crosses a bay, sealing it off from the open ocean is a ________.
sea stack
tombolo
coastal barrier
none
A ridge of sand projecting into a bay and often having a hooked end is a ________.
spit
jetty
groin
sea stack
Low ridges of land, parallel to the coast, along the Atlantic and Gulf coasts, are known as ________.
tombolos
spits
barrier islands
barrier bars
A ________ is the remnant of a sea arch
sea stack
seacliff
marine terrace
sea spit
Which of the following shoreline features forms only in tectonically active areas?
wave-cut platform
marine terrace
barrier island
baymouth bar
When caves on opposite sides of a headland unite, a(n) ________ results.
tombolo
marine terrace
sea stack
sea arch
If an initially irregular coastline remains relatively stable, it will become ________ over time.
more irregular
uplifted
submerged
straighter and more regular
The presence of which one of the following would indicate that the land had been uplifted or that sea level had fallen?
an estuary
a sea stack
elevated marine terrace
a tombolo
Chesapeake Bay and Delaware Bay are ________.
associated with a submergent coast
former river valleys that were flooded by a rise in sea level
excellent examples of large estuaries
all of the above
Large estuaries are more common on a(n) ________ coastline.
submergent
emergent
stable
retreating
Elevated wave-cut platforms in Southern California are evidence that this coastal area is ________.
submergent
emergent
stable
retreating
A hurricane causes the most damage in the coastal zone because of ________.
the hurricane's width
population density
storm surge
heavy rain
A poleward-moving ocean current is ________.
warm only in the Northern Hemisphere
warm only in the Southern Hemisphere
warm
cold
The majority of Atlantic hurricanes occur ________.
between October and December
between July and October
between May and December
between December and June
Hurricanes are said to have a steep pressure gradient, and as you move toward the center of the storm, ________.
pressure slowly drops
pressure rapidly drops
pressure slowly rises
pressure rapidly rises
Which of the following is true of the eye of a hurricane?
It is the area where the most destructive winds occur.
it is generally located at one edge of the hurricane spiral.
it is the coolest part of the storm.
It is the warmest part of the storm.
Once a hurricane makes landfall, it ________
rapidly picks up speed
becomes more intense
loses energy and is usually downgraded
dissipates almost immediately
A tropical storm becomes a hurricane when its sustained wind speeds exceed ________.
50 mph
74 mph
100 mph
120 mph
Which one of the following structures is built to protect boats from large breaking waves?
jetty
groin
breakwater
seawall
Which of the following is designed to prevent or retard shoreline erosion?
groin
beach nourishment
seawall
all of these
A barrier built at a right angle to the beach for the purpose of trapping sand that is moving parallel to the shore is called a ________.
groin
jetty
breakwater
seawall
Which of the following is an alternative to hard stabilization?
breakwaters
seawalls
beach nourishment
groins
Hard stabilization approaches often result in ________.
stable beaches all along the coastline
increased frequency of storms
larger storm surges
the interruption of the natural flow of sand in coastal currents
Which of the following is a tidal current?
spring tide
flood tide
ebb tide
both ebb and flood
The daily tidal range is GREATEST during ________ tide
spring
ebb
neap
none
The daily tidal range is LEAST during ________ tide.
spring
ebb
neap
none
Which of the following has the greatest effect on the tides?
the Sun
the Moon
fetch
bathymetry
The _______ occurs as the tide falls.
flood current
ebb current
spring current
neap current
________ occur at about the time of the first quarter and third quarter phases of the Moon.
Spring tides
Flood tides
Flood tides
Neap tides
