Section #: 16.1
Shoreline Features
Practice Test
1.
A groin is used to __________.
SC.G.2.4.2
a.
interrupt the natural longshore transport of sand
b.
provide anchorage for small boats
c.
protect the beach from storm waves
d.
protect a harbor
Hint
2.
__________ are points of land sticking out into the ocean.
SC.D.1.4.2
a.
Rocky headlands
b.
Barrier islands
c.
Estuaries
d.
Beaches
Hint
3.
How much would sea level rise if all the world's polar ice melted?
SC.G.2.4.2
a.
700 m
b.
10 m
c.
2 m
d.
70 m
Hint
4.
What determines the size of sediment particles on a beach?
SC.D.1.4.2
a.
amount of sediment
b.
width of dune
c.
tidal range
d.
wave energy
Hint
5.
Why is water in an estuary commonly brackish?
a.
It is a nursery for fish.
b.
It's a mixture of freshwater and salt water.
c.
It is moved with the longshore current.
d.
Its chemistry is affected by sea grasses.
Hint
6.
According to the map, what can be said about the coastline over the past 20,000 years?
SC.D.1.4.3
a.
It has receded.
b.
It has remained the same.
c.
It has expanded.
d.
it has definitely fluctuated
Hint
7.
What is a barrier island?
SC.D.1.4.2
a.
a narrow bank of sand that crosses a bay
b.
a long ridge of sand that is separate from the mainland
c.
a narrow bank of sand that projects into the ocean
d.
a narrow ridge of sand that connects the mainland and an island
Hint
8.
What is the purpose of the structure shown in the figure?
a.
to trap beach sand
b.
to redirect current
c.
to anchor boats
d.
to protect the shore
Hint
9.
Which structure is pictured in the figure?
a.
breakwater
b.
seawall
c.
jetty
d.
groin
Hint
10.
What is a narrow bank of sand that projects into the ocean called?
SC.D.1.4.2
a.
a lagoon
b.
a barrier island
c.
a bay mouth bar
d.
a spit
Hint
11.
Which is NOT a method of building coastal landforms above sea level?
a.
upwelling of sediments
b.
longshore transportation of sediments at high tide
c.
wind-shaping dunes from sediments exposed at low tide
d.
storms moving sediments above the high-tide mark
12.
What determines the composition of sediment particles on a beach?
SC.D.1.4.2
a.
sediment source
b.
amount of sediment
c.
tidal range
d.
wave energy
Hint
13.
How much lower was sea level 10,000 years ago?
SC.D.1.4.3
a.
100 m
b.
500 m
c.
130 m
d.
20 m
Hint
14.
What is the purpose of a breakwater?
a.
protect a harbor
b.
protect the beach from storm waves
c.
provide anchorage for small boats
d.
interrupt the natural longshore transport of sand
15.
Waves move at __________ velocity in deep water than in shallow water.
a.
a slower
b.
the same
c.
a 100-times-faster
d.
a faster
Hint
16.
Straight wave crests bend toward headlands because of a process called __________.
a.
erosion
b.
concentration
c.
wave reflection
d.
wave refraction
Hint
17.
Why is sea level still rising?
SC.D.1.4.3
a.
global cooling
b.
the destruction of ozone in the atmosphere
c.
global warming
d.
the size of world glaciers is growing
Hint
18.
What flat erosion surface is formed as a headland is worn away?
SC.D.1.4.2
a.
wave-cut platform
b.
wave-cut cliff
c.
sea arches
d.
sea caves
Hint
19.
Water movement parallel to shore is called __________.
a.
longshore current
b.
rip current
c.
longshore bar
d.
upwelling
Hint
