Question 1

Discuss the problems with and benefits of beach nourishment as an erosion mitigation strategy.

Accepted Answer

Beach nourishment means adding sand to a

Question 2

Which type of wave would you expect to see on a barrier island on the East Coast of Canada?

Accepted Answer

A)  plunging breaker 
B)  spilling breaker 
C)  tidal wave 
D)  tsunami 
E)  divergent breaker 
A)  plunging breaker 
B)  spilling breaker 
C)  tidal wave 
D)  tsunami 
E)  divergent breaker

Question 3

Which of the following is a hard engineering solution to coastal erosion?

Accepted Answer

A)  removal of structures on the beach 
B)  installation of beach groins 
C)  beach nourishment 
D)  building of vegetated dunes 
E)  not building in hazardous areas 
A)  removal of structures on the beach 
B)  installation of beach groins 
C)  beach nourishment 
D)  building of vegetated dunes 
E)  not building in hazardous areas

Question 4

Why do different beaches have different colours of sand?

Accepted Answer

Sand composition varies,so the

Question 5

The most effective hard stabilization is beach replenishment.

Accepted Answer

A) True 
 B)False

Question 6

Wave erosion is limited in the arctic due to a reduction in fetch caused by sea ice.

Accepted Answer

A) True 
 B)False

Question 7

Most of the sand moves parallel to the shoreline due to longshore currents.

Accepted Answer

A) True 
 B)False

Question 8

If you're swimming in the ocean and you find yourself getting carried rapidly away from shore,what should you do?

Accepted Answer

Swim parallel to the

Question 9

Given waves with a wavelength of 40 meters,what motion does the water at 30 m depth undergo as the waves pass by?

Accepted Answer

No motion.

Question 10

Coastal erosion is a natural process.

Accepted Answer

A) True 
 B)False

Question 11

Longshore drift is the transport of sediment by currents that flow parallel to the shore.

Accepted Answer

A) True 
 B)False

Question 12

Why are eustatic sea level changes happening?

Accepted Answer

It has to do with two main pro

Question 13

Explain the differences between eustatic and relative sea level.

Accepted Answer

The position of the sea at the shore,ref

Question 14

Most steep,high-energy beaches are formed of sand.

Accepted Answer

A) True 
 B)False

Question 15

Rising sea level and the disappearance of islands off the coast of Nova Scotia can most likely be attributed to

Accepted Answer

A)  more nor'easters. 
B)  stronger hurricanes. 
C)  bigger fetch. 
D)  human activity. 
E)  glacio-isostatic subsidence. 
A)  more nor'easters. 
B)  stronger hurricanes. 
C)  bigger fetch. 
D)  human activity. 
E)  glacio-isostatic subsidence.

Question 16

In Canada,there are fewer fatalities per capita associated with rip currents than there are in the United States.Why?

Accepted Answer

A)  Rip currents are less common in Canada. 
B)  Canadian beaches are too short to form rip currents. 
C)  Rip currents only form on barrier islands, which are more common in the United States. 
D)  The water off Canadian shores is often too cold for most swimmers. 
E)  Education about rip currents is more prevalent in Canada. 
A)  Rip currents are less common in Canada. 
B)  Canadian beaches are too short to form rip currents. 
C)  Rip currents only form on barrier islands, which are more common in the United States. 
D)  The water off Canadian shores is often too cold for most swimmers. 
E)  Education about rip currents is more prevalent in Canada.

Question 17

Which of the following statements is TRUE about waves?

Accepted Answer

A)  Waves break because they rise too high in shallow water. 
B)  Waves diminish greatly in size as they move across the ocean. 
C)  Waves are mostly random and cannot be predicted. 
D)  Wavelength increases when the wave approaches the shoreline. 
E)  Waves speed up when they approach the coastline. 
A)  Waves break because they rise too high in shallow water. 
B)  Waves diminish greatly in size as they move across the ocean. 
C)  Waves are mostly random and cannot be predicted. 
D)  Wavelength increases when the wave approaches the shoreline. 
E)  Waves speed up when they approach the coastline.

Question 18

Stabilization of beaches with engineered structures protects beaches.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is the best way to measure the wave height of a set of waves at the beach?

Accepted Answer

A)  Hold a meterstick in the water and measure how high the wave goes on the stick. 
B)  Count the number of waves that pass by in a minute. 
C)  Using a stopwatch, time the waves as the crests move by. 
D)  Take a picture of the waves with a camera and measure the distance between the crests with a ruler. 
E)  Using a scale, measure the pressure of the largest wave. 
A)  Hold a meterstick in the water and measure how high the wave goes on the stick. 
B)  Count the number of waves that pass by in a minute. 
C)  Using a stopwatch, time the waves as the crests move by. 
D)  Take a picture of the waves with a camera and measure the distance between the crests with a ruler. 
E)  Using a scale, measure the pressure of the largest wave.

Question 20

What limits coastal erosion on the Arctic coast of Canada?

Accepted Answer

A)  cold temperatures 
B)  low wind speeds 
C)  rocky shorelines 
D)  melting permafrost 
E)  sea ice 
A)  cold temperatures 
B)  low wind speeds 
C)  rocky shorelines 
D)  melting permafrost 
E)  sea ice

Discuss the problems with and benefits of beach nourishment as an erosion mitigation strategy.

Which type of wave would you expect to see on a barrier island on the East Coast of Canada?

Which of the following is a hard engineering solution to coastal erosion?

Why do different beaches have different colours of sand?

The most effective hard stabilization is beach replenishment.

Wave erosion is limited in the arctic due to a reduction in fetch caused by sea ice.

Most of the sand moves parallel to the shoreline due to longshore currents.

If you're swimming in the ocean and you find yourself getting carried rapidly away from shore,what should you do?

Given waves with a wavelength of 40 meters,what motion does the water at 30 m depth undergo as the waves pass by?

Coastal erosion is a natural process.

Longshore drift is the transport of sediment by currents that flow parallel to the shore.

Why are eustatic sea level changes happening?

Explain the differences between eustatic and relative sea level.

Most steep,high-energy beaches are formed of sand.

Rising sea level and the disappearance of islands off the coast of Nova Scotia can most likely be attributed to

In Canada,there are fewer fatalities per capita associated with rip currents than there are in the United States.Why?

Which of the following statements is TRUE about waves?

Stabilization of beaches with engineered structures protects beaches.

Which of the following is the best way to measure the wave height of a set of waves at the beach?

What limits coastal erosion on the Arctic coast of Canada?

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Exam 12: Waves, Currents, and Coastlines

Discuss the problems with and benefits of beach nourishment as an erosion mitigation strategy.

Which type of wave would you expect to see on a barrier island on the East Coast of Canada?

Which of the following is a hard engineering solution to coastal erosion?

Why do different beaches have different colours of sand?

The most effective hard stabilization is beach replenishment.

Wave erosion is limited in the arctic due to a reduction in fetch caused by sea ice.

Most of the sand moves parallel to the shoreline due to longshore currents.

If you're swimming in the ocean and you find yourself getting carried rapidly away from shore,what should you do?

Given waves with a wavelength of 40 meters,what motion does the water at 30 m depth undergo as the waves pass by?

Coastal erosion is a natural process.

Longshore drift is the transport of sediment by currents that flow parallel to the shore.

Why are eustatic sea level changes happening?

Explain the differences between eustatic and relative sea level.

Most steep,high-energy beaches are formed of sand.

Rising sea level and the disappearance of islands off the coast of Nova Scotia can most likely be attributed to

In Canada,there are fewer fatalities per capita associated with rip currents than there are in the United States.Why?

Which of the following statements is TRUE about waves?

Stabilization of beaches with engineered structures protects beaches.

Which of the following is the best way to measure the wave height of a set of waves at the beach?

What limits coastal erosion on the Arctic coast of Canada?

Introduction to Natural Hazards

Internal Structure of Earth and Plate Tectonics

Earthquakes

Tsunamis

Volcanoes and Volcanic Eruptions

Landslides

Snow Avalanches

Subsidence and Soil Expansion and Contraction

River Flooding

Atmosphere and Severe Weather

Hurricanes and Extratropical Cyclones

Wildfires

Climate Change

Meteorite Impacts and Extinctions

Filters