Coasts

Question 1

What is Fetch

Answer 1

The distance over which the wind belows across the sea

Question 2

What is Swash

Answer 2

The movement of water up the beach after a wave breaks,It carries sediment and deposition material

Question 3

What is backwash

Answer 3

The water that flows back down the beach towards the sea,often pulling sediment with it

Question 4

Wave types

Answer 4

Destructive - erosion
Constructive - deposition

Question 5

Coastal erosion processes

Answer 5

Hydraulic Action
Compressed Air
Abrasion
Attrition
Solution

Question 6

Coastal Feature

Answer 6

Erosion - Sea cliff,arch,stack,stump,blowhole,wave-cut platform
Deposition - Beach,sand spit,sand bar,tombolo,lagoon

Question 7

Longsore Drift

Answer 7

Longshore Drift is the movement of sediment along the shore,caused by waves hitting the beach at an angle.As waves break,they push sediment up the beach(swash) and the water than flows back down,carrying sediment with it(backwash) in a zigzag pattern.

Question 8

Coastal Deposition

Answer 8

Coastal Deposition happens when waves lose energy and rip the sediment they carry,forming features like beaches,spits,and sandbars in sheltered areas where the water is calmer.