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Multiple Choice Quiz
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1
The path a water particle makes as a wave passes in deep water is described as:
A)linear.
B)elliptical.
C)spherical.
D)none of these.
2
Most waves on the ocean are generated by:
A)wind.
B)tides.
C)volcanic eruptions underwater.
D)the rotation of the Earth.
3
The distance from the crest of a wave to the next crest is:
A)the wave speed or celerity.
B)the wave period.
C)always the same.
D)the wavelength.
4
The narrow currents that flow straight out to sea in the surf zone is called:
A)Body currents.
B)Swash currents
C)Rip currents.
D)Tidal currents.
5
Beach sediment is typically quartz-rich sand because:
A)most beaches are made of quartz.
B)quartz is a durable mineral that resists chemical weathering.
C)quartz is the only mineral that can be sand-sized.
D)beaches only form where rocks are rich in quartz.
6
The movement of sediment parallel to shore when waves strike at an angle is called:
A)longshore drift.
B)sedimentation.
C)sediment transport.
D)longshore currents.
7
Which of the following structures can disrupt longshore drift?
A)jetties
B)breakwaters
C)seawalls.
D)all of these
8
What is the most common source of sand on beaches?
A)dredging of sand from harbors
B)sand transported to the beach by rivers
C)offshore sediments
D)erosion of headlands adjacent to the beach.
9
Which landforms would you expect to find on erosional coasts?
A)sea stacks
B)sea cliffs
C)rocky headlands
D)all of these
10
Which of the following would characterize a depositional coast?
A)deltas
B)bay mouth bars
C)spits
D)all of these
11
A glacial valley drowned by rising sea-level is called:
A)a fjord.
B)a tombolo.
C)a recessional coast.
D)an estuary.
12
The storm surge of a hurricane is caused by:
A)low atmospheric pressure, causing sea-level to bulge under the storm.
B)the movement of the hurricane onto a shoreline.
C)high winds driving large waves ashore.
D)all of these
13
When waves approach a coast at an angle over a sloping seafloor, they:
A)cause tremendous damage to coastal structures.
B)refract.
C)break forming great surf.
D)cause rip currents.
14
In shallow water, waves break because:
A)they hit the shore.
B)they slow down and become so steep that the crest topples over.
C)they speed up.
D)the water gets too shallow.
15
The maximum depth of influence of waves beneath the surface is:
A)one-half their period.
B)one-half their frequency.
C)one-half their wavelength.
D)none of these
16
As waves move into shallow water, the motion of water particles becomes:
A)flattened.
B)elliptical.
C)spherical
D)orbital.
17
The size of waves is related to:
A)the duration of winds blowing over water.
B)the speed of winds blowing over water.
C)this distance that wind blows over water.
D)all of these
18
Construction of seawalls often:
A)helps protect onshore structures behind the seawall.
B)costs a lot of money for maintenance over the long term.
C)accelerates coastal erosion.
D)all of these.
19
Marine terraces are landforms associated with:
A)uplifted coasts.
B)drowned coasts.
C)erosional coasts.
D)depositional coasts.
20
Which of the following terms does NOT refer to a coastal landform?
A)tombolo.
B)sea stack.
C)seashore.
D)bay mouth bar.





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