Chapter 15

Question 1

What two energy sources creates Gyres?

Answer 1

Trade winds and Westerlies

Question 2

Name the 2 major affects that the Oceans circulation has on the earth?

Answer 2

helps regulate the worlds tempertures

and can change weather patterns

Question 3

Who Discovered the Gulf Stream?

Answer 3

sailors and fisherman

Question 4

What is the Gulf Stream?

Answer 4

it is Western edge of the North Atlantic gyre

Question 5

Who made the first map of the Gulf Stream?

Answer 5

Benjamin Franklin

Question 6

4 parts of the Ocean floor

Answer 6

Continental shelf
Continental slope
Contiental rise
Abyssal Plain

Question 7

What is an ocean wave?

Answer 7

a wave is created by the wind, it is an energy wave passing through the warm water

Question 8

what is the top of a wave called

Answer 8

Crest

Question 9

Name or list 3 factors that determine the height, length and period of a wave

Answer 9

wind speed

length

Question 10

Name 2 erosional features you can find on a shore line

Answer 10

sea arch

sea stack

Question 11

Name 2 erosional features you can find at the shore

Answer 11

sea arch

sea stack

Question 12

Name 4 depositional features that you can find at the shore

Answer 12

spit
bay mouth bar
tombolo
barrier island

Question 13

What are the 4 types of artificial structures of hard stabilization?

Answer 13

Seawall
breakwater
jetties
groins

Question 14

What are 2 alternatives to artificial structures?

Answer 14

Beach nourishment

relocation

Question 15

What will happen down current from groins?

Answer 15

erosion

Question 16

What is a Rouge wave?

Answer 16

abnormally high wave unrelated to local storm conditions. caused by waves joining together

Question 17

What are 3 indications that a rip current is present

Answer 17

Cloudy water with floating debris
Reduced wave height
depressions on the beach

Question 18

Is a tsunami also called a seismic wave?

Answer 18

NOOOOOO

Question 19

Is a Tsunami a free wave or a forced wave?

Answer 19

Free wave

Question 20

Is a tsunami a deep water wave or shallow water wave?

Answer 20

Shallow water wave

Question 21

what is the average wavelength of a tsunami?

Answer 21

100-200 km (60-120 miles)

Question 22

what is the average speed of a Tsunami?

Answer 22

500 km/hr to 1,000 km/hr (310to 620 miles per hour)

Question 23

List the top 5 causes of a tsunami on the order of power

Answer 23

Landslide
submarine landslide
Volcanoes
Earthquakes
Meteorites

Question 24

Why is the Aleutian island tsunami on April 1, 1940

Answer 24

it helped create the Pacific Ocean Tsunami Early warning system (Hawaii)