About waves defention etc

Question 1

Meaning of Long fetch?

Answer 1

Large waves / time for waves to grow an respond to wind energy

Question 2

Definition of a constructive wave?

Answer 2

A wave with a small arc / strong wash weaker backwash

Question 3

Definition of a destructive wave?

Answer 3

Has a high crest / weak wash but stronger backwash

Question 4

What are the 4 types of erosion?

Answer 4

Abrasion(Corrasion)
Attrition
Solution
Hydraulic Action

Question 5

What is Abrasion(Corrasion)?

Answer 5

Frongaments of rock hit the cliff making it smoother

Question 6

What is Solution?

Answer 6

Salts and acids causing chemicals in rocks to dissolve

Question 7

What is Attrition?

Answer 7

Rocks carried by waves knock against each other to become smaller

Question 8

What is hydraulic action?

Answer 8

Powerful waves smash into cliffs , air is compressed / causes expansion

Question 9

What are the 4 ways of Transportation?

Answer 9

Suspension, Solution, Traction Saltation

Question 10

What is Suspension?

Answer 10

Fine light sediments / rocks held by the water

Question 11

What is Solution in transportation?

Answer 11

Dissolving the rocks into the water

Question 12

What is Traction?

Answer 12

Large boulders and rocks are rolled along the sea bed

Question 13

What is Saltation?

Answer 13

Small pebbles are picked up and bounced

Question 14

What is Longshore Drift?

Answer 14

Long shore Drift is the movement of sediment along the coastline.

Question 15

What is deposition?

Answer 15

Deposition is the dumping or dropping of a material by the sea.

Question 16

What is wave refraction?

Answer 16

At the coastline waves refract to follow the shape of the coast.

Question 17

What is the Crest of the wave?

Answer 17

The peak of the wave, the top

Question 18

What is wavelength?

Answer 18

The distance of one wave from another

Question 19

What do waves actually do?

Answer 19

They do erosion + transportation + Deposition

Question 20

What are the 3 types of weathering?

Answer 20

Mechanical, chemical, biological

Question 21

What is weathering?

Answer 21

Weathering is the weakening or decay of rocks in their original place.

Question 22

Summary of Mechanical weathering?

Answer 22

Water entering cracks of the rock. Water freezes and unfreezes. This process repeats until rock falls.

Question 23

Summary of Chemical weathering?

Answer 23

The decomposition of rocks cause by chemical changes.

Acidic in air slowly dissolve alkaline rocks and minerals

Question 24

Summary of Biological weathering?

Answer 24

The breakup of rocks caused by plants or animals. Plants roots growing, animals making homes etc.

Question 25

What is mass movement?

Answer 25

The downslope movement of rock, soil or mud under the influence of gravity

Question 26

Summary of Rock fall?

Answer 26

Occur on vertical, bulk movements of soil and rock respond to gravity. SLIDE

Question 27

Summary of Land slide?

Answer 27

Layers of rock dip towards the sea so are liable to landslides. SLIDE

Question 28

Summary of Mudflow?

Answer 28

Saturated soil and weak rock FLOW down a slope usually because there is little vegetation to hosted soil in place. SLIDE

Question 29

Summary of Rotational slip?

Answer 29

A slide takes a straight path down a cliff but a slump at the bottom of the cliff. SLIDE

Question 30

Causes of hard Rocks?

Answer 30

Makes cliff more vertical. Takes more time for erosion because of the material which is more resistant.

Question 31

What causes headlands and bays?

Answer 31

Hard and soft rocks