Chapter 20 Flashcards
(10 cards)
The motion of water particles in a wave is primarily ________.
A. up and down
B. on shore
C. off shore
D. circular
E. refracting
D. circular
The distance between consecutive wave crests or wave troughs is the __________.
A. fetch
B. backwash
C. wavelength
D. refraction
E. wave height
C. wavelength
Wave action on the land will often create caves and cliffs. These features are collectively called _____________.
A. swash
B. wave cut terraces
C. dunes
D. surf zone
E. wave refraction
B. wave cut terraces
Waves often strike the shore at an angle, but the backwash is directly back into the water. The resulting zigzag movement of sand down the beach is called _________.
A. longshore drift
B. wave refraction
C. swashbucklers
D. rip current
E. barrier island
A. longshore drift
The apparent bending of waves as they strike an object on the coast is called a ____________.
A. fetch
B. wavelength
C. refraction
D. backwash
E. longshore drift
C. refraction
The primary difference between a spit and a barrier island is
A. the wind direction.
B. spits form lagoons.
C. their formation.
D. their latitude of occurrence.
E. the quantity of beach drifting.
C. their formation.
The most likely reason that lakes are not as strongly affected as oceans by the tides is
A. their lack of salinity.
B. their latitude.
C. the highly variable lake floor structure.
D. their depth.
E. their horizontal size.
E. their horizontal size.
Coral polyps secrete solid masses of rocklike material. The primary chemical composition of this material is
A. calcium fluorite.
B. calcium silicate.
C. calcium carbonate.
D. carbon dioxide.
E. quartzite.
C. calcium carbonate.
One method that humans use to modify the navigation channel of a bay and reduce beach loss is by using
A. jetties.
B. loess.
C. fjords.
D. frost wedging.
E. eustatic sea-level change.
A. jetties.
The massive incursion of water on a coast that results from an offshore undersea earthquake is called a ______.
A. barrier
B. fjord
C. ria
D. tsunami
E. uvala
D. tsunami
