Question 1

Why do waves expend so much energy on a rocky headland?

Accepted Answer

A) Waves reflect off the headland and amplify the incoming waves. 
B) Wave velocity is greater on headlands than on beaches. 
C) Waves refract toward the headland on both sides. 
D) Headlands tend to have deeper water surrounding them, so the waves are higher. 
A) Waves reflect off the headland and amplify the incoming waves. 
B) Wave velocity is greater on headlands than on beaches. 
C) Waves refract toward the headland on both sides. 
D) Headlands tend to have deeper water surrounding them, so the waves are higher. C

Question 2

The Cape Hatteras lighthouse was moved inland because a major storm damaged it in 1994.

Accepted Answer

A) True 
 B)False  False

Question 3

As waves are sorted as distance increases from the source area, they develop a regular frequency and become ________.

Accepted Answer

swell

Question 4

A rise in sea level is likely to cause greater coastal erosion.

Accepted Answer

A) True 
 B)False

Question 5

As waves enter shallow water

Accepted Answer

A) wavelength decreases and wave height increases 
B) wavelength increases and wave height increases 
C) wavelength decreases and wave height decreases 
D) wavelength increases and wave height decreases 
A) wavelength decreases and wave height increases 
B) wavelength increases and wave height increases 
C) wavelength decreases and wave height decreases 
D) wavelength increases and wave height decreases

Question 6

The ________ is the time it takes for successive wave crests to pass a point.

Accepted Answer

The answer of The ________ is the time it takes...

Question 7

How might global warming exacerbate coastal hazards?

Accepted Answer

A) Global warming will likely be accompanied by sea level rise. 
B) Warmer water is more highly erosive on coastlines. 
C) Ocean currents will be stronger in a warmer world. 
D) Under warmer conditions, waves are likely to be substantially larger. 
A) Global warming will likely be accompanied by sea level rise. 
B) Warmer water is more highly erosive on coastlines. 
C) Ocean currents will be stronger in a warmer world. 
D) Under warmer conditions, waves are likely to be substantially larger.

Question 8

What adverse effect do groins and jetties both have on coastal erosion?

Accepted Answer

A) They stop littoral transport of sand and starve down-drift areas of sand. 
B) They reflect waves across the beach. 
C) They cause the waves striking the structure to increase in height and erosive power. 
D) They rob the waves of their energy to transport sand. 
A) They stop littoral transport of sand and starve down-drift areas of sand. 
B) They reflect waves across the beach. 
C) They cause the waves striking the structure to increase in height and erosive power. 
D) They rob the waves of their energy to transport sand.

Question 9

The E-10 zone in the coastal erosion hazard mapping scheme is the zone in which erosion is predicted to happen over the next ________ time period.

Accepted Answer

The answer of The E-10 zone in the coastal erosion...

Question 10

Why does ocean swell tend to consist of waves of similar sizes?

Accepted Answer

A) Swell is controlled by water depth. 
B) Swell is controlled by wind speed, and all of the waves that comprise swell arise from the same wind cell. 
C) Wavelength is similar for all ocean waves. 
D) Waves far from their storm source tend to be sorted into groups of similar waves. 
A) Swell is controlled by water depth. 
B) Swell is controlled by wind speed, and all of the waves that comprise swell arise from the same wind cell. 
C) Wavelength is similar for all ocean waves. 
D) Waves far from their storm source tend to be sorted into groups of similar waves.

Question 11

Coastal landscapes are capable of rapid change because continental and oceanic processes converge there.

Accepted Answer

A) True 
 B)False

Question 12

As waves enter the coastal zone, wavelengths shorten and wave heights increase.

Accepted Answer

A) True 
 B)False

Question 13

What is the main drawback of seawalls?

Accepted Answer

A) They tend not to protect the seacliff very well. 
B) They stop the longshore transport of sand. 
C) They reflect wave energy back across the beach and cause erosion. 
D) They trap sand, forcing the ocean around the beach, where it erodes intensively. 
A) They tend not to protect the seacliff very well. 
B) They stop the longshore transport of sand. 
C) They reflect wave energy back across the beach and cause erosion. 
D) They trap sand, forcing the ocean around the beach, where it erodes intensively.

Question 14

Soft stabilization of coastal erosion utilizes seawalls constructed of soft, cushioned materials versus hard materials such as steel.

Accepted Answer

A) True 
 B)False

Question 15

Tropical cyclones are called ________ in the western Pacific Ocean.

Accepted Answer

The answer of Tropical cyclones are called ________ in the...

Question 16

Why does river damming sometimes contribute to coastal erosion?

Accepted Answer

A) The supply of sediment to beaches is shut off. 
B) The supply of water to the longshore current is reduced. 
C) The channel between jetties tends to become clogged with sand. 
D) The reservoirs occasionally flood through a distributary channel, eroding the beach. 
A) The supply of sediment to beaches is shut off. 
B) The supply of water to the longshore current is reduced. 
C) The channel between jetties tends to become clogged with sand. 
D) The reservoirs occasionally flood through a distributary channel, eroding the beach.

Question 17

What is the principal goal of beach nourishment?

Accepted Answer

A) to augment the sand supply so that engineered structures work more efficiently 
B) to maintain a positive beach budget and alleviate the need for engineered structures 
C) to keep jetties from accumulating so much sand that they fill in river channels 
D) to eliminate littoral transport 
A) to augment the sand supply so that engineered structures work more efficiently 
B) to maintain a positive beach budget and alleviate the need for engineered structures 
C) to keep jetties from accumulating so much sand that they fill in river channels 
D) to eliminate littoral transport

Question 18

Hurricanes tend to strengthen over warm ocean water.

Accepted Answer

A) True 
 B)False

Question 19

Hurricane waves at sea are the greatest hazard presented by hurricanes.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following does not influence wave size?

Accepted Answer

A) wind velocity 
B) wind duration 
C) wind fetch 
D) wind temperature 
A) wind velocity 
B) wind duration 
C) wind fetch 
D) wind temperature

Why do waves expend so much energy on a rocky headland?

The Cape Hatteras lighthouse was moved inland because a major storm damaged it in 1994.

As waves are sorted as distance increases from the source area, they develop a regular frequency and become ________.

A rise in sea level is likely to cause greater coastal erosion.

As waves enter shallow water

The ________ is the time it takes for successive wave crests to pass a point.

How might global warming exacerbate coastal hazards?

What adverse effect do groins and jetties both have on coastal erosion?

The E-10 zone in the coastal erosion hazard mapping scheme is the zone in which erosion is predicted to happen over the next ________ time period.

Why does ocean swell tend to consist of waves of similar sizes?

Coastal landscapes are capable of rapid change because continental and oceanic processes converge there.

As waves enter the coastal zone, wavelengths shorten and wave heights increase.

What is the main drawback of seawalls?

Soft stabilization of coastal erosion utilizes seawalls constructed of soft, cushioned materials versus hard materials such as steel.

Tropical cyclones are called ________ in the western Pacific Ocean.

Why does river damming sometimes contribute to coastal erosion?

What is the principal goal of beach nourishment?

Hurricanes tend to strengthen over warm ocean water.

Hurricane waves at sea are the greatest hazard presented by hurricanes.

Which of the following does not influence wave size?

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Introduction to Natural Hazards

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Tsunamis

Volcanic Activity

Rivers and Flooding

Slope Processes, Landslides, and Subsidence

Impact of Extraterrestrial Objects

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Exam 11: Coastal Processes

Why do waves expend so much energy on a rocky headland?

The Cape Hatteras lighthouse was moved inland because a major storm damaged it in 1994.

As waves are sorted as distance increases from the source area, they develop a regular frequency and become ________.

A rise in sea level is likely to cause greater coastal erosion.

As waves enter shallow water

The ________ is the time it takes for successive wave crests to pass a point.

How might global warming exacerbate coastal hazards?

What adverse effect do groins and jetties both have on coastal erosion?

The E-10 zone in the coastal erosion hazard mapping scheme is the zone in which erosion is predicted to happen over the next ________ time period.

Why does ocean swell tend to consist of waves of similar sizes?

Coastal landscapes are capable of rapid change because continental and oceanic processes converge there.

As waves enter the coastal zone, wavelengths shorten and wave heights increase.

What is the main drawback of seawalls?

Soft stabilization of coastal erosion utilizes seawalls constructed of soft, cushioned materials versus hard materials such as steel.

Tropical cyclones are called ________ in the western Pacific Ocean.

Why does river damming sometimes contribute to coastal erosion?

What is the principal goal of beach nourishment?

Hurricanes tend to strengthen over warm ocean water.

Hurricane waves at sea are the greatest hazard presented by hurricanes.

Which of the following does not influence wave size?

Philosophy and Fundamental Concepts

Internal Structure of Earth and Plate Tectonics

Minerals and Rocks

Ecology and Geology

Introduction to Natural Hazards

Earthquakes

Tsunamis

Volcanic Activity

Rivers and Flooding

Slope Processes, Landslides, and Subsidence

Impact of Extraterrestrial Objects

Water Resources

Water Pollution

Mineral Resources and the Environment

Energy Resources

Soils and Environment

Global Climate Change

Geology, Society, and the Future

Filters