Question 1

Stacks are erosional remnants of headlands left behind as the coast retreats.

Accepted Answer

A) True 
 B)False

Question 2

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 current 
A) surf current 
B) breaker current 
C) refraction flow 
D) longshore current 
E) rip current

Question 3

A fiord is a glacially-cut valley flooded by rising sea level.

Accepted Answer

A) True 
 B)False

Question 4

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) estuaries 
A) deltas 
B) arches 
C) straits 
D) fiords 
E) estuaries

Question 5

The bending of waves as they enter shallow water is called _____.

Accepted Answer

A) wave speed up 
B) wave refraction 
C) wave run up 
D) wave diffraction 
E) wave dispersion 
A) wave speed up 
B) wave refraction 
C) wave run up 
D) wave diffraction 
E) wave dispersion

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

Question 7

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 spin 
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 spin

Question 8

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 oval 
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 oval

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

A tombolo is a bar of sediment connecting a former island to the mainland.

Accepted Answer

A) True 
 B)False

Question 11

During what season can you find the best beaches?

Accepted Answer

A) summer 
B) winter 
C) spring 
D) fall 
E) any season 
A) summer 
B) winter 
C) spring 
D) fall 
E) any season

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

A ___ encompasses all land near the sea,including the beach and a strip of land inland from it.

Accepted Answer

A) coast 
B) shoreline 
C) shore 
D) high tide 
E) tidal range 
A) coast 
B) shoreline 
C) shore 
D) high tide 
E) tidal range

Question 14

A wave begins to "feel the bottom" at a water depth equal to ____.

Accepted Answer

A) wave length 
B) 2 to 3 times wave height 
C) the edge of the continental shelf 
D) half wave length 
E) wave amplitude 
A) wave length 
B) 2 to 3 times wave height 
C) the edge of the continental shelf 
D) half wave length 
E) wave amplitude

Question 15

Vast amounts of sand are moved by ____.

Accepted Answer

A) surf 
B) breakers 
C) longshore currents 
D) longitudinal currents 
E) Army Corps of Engineers 
A) surf 
B) breakers 
C) longshore currents 
D) longitudinal currents 
E) Army Corps of Engineers

Question 16

Longshore currents transport most of the beach sand parallel to the shoreline.

Accepted Answer

A) True 
 B)False

Question 17

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. 
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.

Question 18

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

Question 19

_____ is the movement of sand parallel to the shore.

Accepted Answer

A) Longshore drift 
B) Swash 
C) Turbidity flow 
D) Refraction 
E) Wash 
A) Longshore drift 
B) Swash 
C) Turbidity flow 
D) Refraction 
E) Wash

Question 20

You can get out of a rip current easily by swimming ____ to the beach instead of struggling against the current.

Accepted Answer

A) perpendicular 
B) on your back 
C) diagonally 
D) parallel 
E) There is no easy way out of a rip current. 
A) perpendicular 
B) on your back 
C) diagonally 
D) parallel 
E) There is no easy way out of a rip current.

Exam 20: Waves,Beaches and Coasts

Stacks are erosional remnants of headlands left behind as the coast retreats.

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

A fiord is a glacially-cut valley flooded by rising sea level.

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

The bending of waves as they enter shallow water is called _____.

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

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

Waves break because:

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

A tombolo is a bar of sediment connecting a former island to the mainland.

During what season can you find the best beaches?

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

A ___ encompasses all land near the sea,including the beach and a strip of land inland from it.

A wave begins to "feel the bottom" at a water depth equal to ____.

Vast amounts of sand are moved by ____.

Longshore currents transport most of the beach sand parallel to the shoreline.

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

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

_____ is the movement of sand parallel to the shore.

You can get out of a rip current easily by swimming ____ to the beach instead of struggling against the current.

Introducing Geology,the Essentials of Plate Tectonics,and Other Important Concepts

Earths Interior and Geophysical Properties

The Sea Floor

Plate Tectonics

Mountain Belts and the Continental Crust

Geologic Structures

Earthquakes

Time and Geology

Atoms,Elements and Minerals

Volcanism and Extrusive Rocks

Igneous Rocks, Intrusive Activity, and the Origin of Igneous Rocks

Weathering and Soil

Mass Wasting

Sediment and Sedimentary Rocks

Metamorphism, Metamorphic Rocks, and Hydrothermal Rocks

Streams and Floods

Ground Water

Deserts and Wind Action

Glaciers and Glaciation

Geologic Resources

The Earths Companions

Filters