Question 1

During what season can you find the best beaches?

Accepted Answer

A)   summer
B)   winter
C)   spring
D)   fall
E)   any seasonF) B) and D)
G) A) and D)

Question 2

Groins are short walls built parallel to shore to keep sand from moving.

Accepted Answer

A) True 
 B)False

Question 3

Seawalls are constructed perpendicular to the shore to prevent wave erosion.

Accepted Answer

A) True 
 B)False

Question 4

The height and length of a wave is a function of _____.

Accepted Answer

A)   wind strength
B)   wind duration
C)   distance over which the wind blows
D)   All of the answers are correct.
E)   None of the answers are correct.F) A) and B)
G) None of the above

Question 5

Water in _____ has lost its orbital motion and moves back and forth.

Accepted Answer

A)   a wave crest
B)   a wave trough
C)   a deep-water wave
D)   the surf zone
E)   the beach zoneF) B) and D)
G) A) and B)

Question 6

______ are narrow currents that flow straight out to sea in the surf zone.

Accepted Answer

A)   Swash currents
B)   Tidal currents
C)   Body currents
D)   Rip currents
E)   Longshore currentsF) A) and C)
G) C) and D) D

Question 7

Wavelength is the horizontal distance between two wave crests or two troughs.

Accepted Answer

A) True 
 B)False

Question 8

More sand is moved along the beach face than in the surf zone.

Accepted Answer

A) True 
 B)False  False

Question 9

The vertical distance between the crest and the trough of a wave is called the ____.

Accepted Answer

A)   wave length
B)   period
C)   wave height
D)   swell
E)   tomboloF) B) and D)
G) C) and E)

Question 10

_____ is the movement of sand parallel to the shore.

Accepted Answer

A)   Longshore drift
B)   Swash
C)   Turbidity flow
D)   Refraction
E)   WashF) A) and B)
G) A) and E)

Question 11

____ are rock walls designed to protect the entrance of a harbor from sediment deposition and storm waves.

Accepted Answer

A)   Groins
B)   Tombolos
C)   Barrier islands
D)   Jetties
E)   BreakwatersF) C) and D)
G) All of the above

Question 12

Waves arriving at an angle to the shore push water parallel to the shore in a ______.

Accepted Answer

A)   surf current
B)   breaker current
C)   refraction flow
D)   longshore current
E)   rip currentF) All of the above
G) A) and B)

Question 13

____ coasts are common because sea level has been rising for the past 15,000 years.

Accepted Answer

A)   Deltaic
B)   Submergent
C)   Emergent and erosional
D)   Emergent and depositional
E)   Organism dominatedF) A) and E)
G) A) and C)

Question 14

The upper part of a beach landward of the high tide line is the _____.

Accepted Answer

A)   beach face
B)   marine terrace
C)   berm
D)   surf zone
E)   spitF) A) and B)
G) A) and E)

Question 15

_____ carry fine-grained sediments out of the surf zone into deeper water.

Accepted Answer

A)   Longshore drift currents
B)   Swash currents
C)   Backswash currents
D)   Rip currents
E)   Coriolis currentsF) C) and D)
G) A) and E)

Question 16

The sea level rise in the past 15,000 years is due to ____.

Accepted Answer

A)   melting glaciers
B)   global land mass subsidence
C)   thermal expansion of the ocean's water
D)   increased precipitation
E)   variations to Earth's rotational spinF) A) and B)
G) B) and D)

Question 17

_____ are wave cut platforms formed by erosion of rock associated with cliff retreat.

Accepted Answer

A)   Uplifted marine terraces
B)   Arches
C)   Stacks
D)   Spits
E)   Barrier islandsF) B) and E)
G) A) and E)

Question 18

The energy that moves sand along a beach ultimately comes from ____.

Accepted Answer

A)   the Earth's rotation
B)   changing climates
C)   temperature variations throughout the ocean
D)   underwater earthquakes
E)   the windF) A) and C)
G) A) and D)

Question 19

Waves break because:

Accepted Answer

A)   height decreases while length increases
B)   height increases while length decreases
C)   both height and length increase
D)   both height and length decrease
E)   water particle orbits change from circular to ovalF) A) and B)
G) None of the above B

Question 20

Drowned coasts may be marked by ___, glacially cut valleys flooded by rising sea level.

Accepted Answer

A)   deltas
B)   arches
C)   straits
D)   fiords
E)   estuariesF) A) and B)
G) C) and E)

Exam 14: Waves, Beaches, and Coasts

During what season can you find the best beaches?

Correct AnswerverifiedShow Answer

Groins are short walls built parallel to shore to keep sand from moving.

Correct AnswerverifiedShow Answer

Seawalls are constructed perpendicular to the shore to prevent wave erosion.

Correct AnswerverifiedShow Answer

The height and length of a wave is a function of _____.

Correct AnswerverifiedShow Answer

Water in _____ has lost its orbital motion and moves back and forth.

Correct AnswerverifiedShow Answer

______ are narrow currents that flow straight out to sea in the surf zone.

Correct AnswerverifiedD

Wavelength is the horizontal distance between two wave crests or two troughs.

Correct AnswerverifiedShow Answer

More sand is moved along the beach face than in the surf zone.

Correct AnswerverifiedFalse

The vertical distance between the crest and the trough of a wave is called the ____.

Correct AnswerverifiedShow Answer

_____ is the movement of sand parallel to the shore.

Correct AnswerverifiedShow Answer

____ are rock walls designed to protect the entrance of a harbor from sediment deposition and storm waves.

Correct AnswerverifiedShow Answer

Waves arriving at an angle to the shore push water parallel to the shore in a ______.

Correct AnswerverifiedShow Answer

____ coasts are common because sea level has been rising for the past 15,000 years.

Correct AnswerverifiedShow Answer

The upper part of a beach landward of the high tide line is the _____.

Correct AnswerverifiedShow Answer

_____ carry fine-grained sediments out of the surf zone into deeper water.

Correct AnswerverifiedShow Answer

The sea level rise in the past 15,000 years is due to ____.

Correct AnswerverifiedShow Answer

_____ are wave cut platforms formed by erosion of rock associated with cliff retreat.

Correct AnswerverifiedShow Answer

The energy that moves sand along a beach ultimately comes from ____.

Correct AnswerverifiedShow Answer

Waves break because:

Correct AnswerverifiedB

Drowned coasts may be marked by ___, glacially cut valleys flooded by rising sea level.

Correct AnswerverifiedShow Answer

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D

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False

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B

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