Coast

Question 1

What is a fetch ?

Answer 1

The distance over which the wind blows across the sea , generating waves.a longer fetch results in larger , more powerful waves. ( the distance a wave travels)

Question 2

What is a swash?

Answer 2

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

Question 3

What is a backwash?

Answer 3

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

Question 4

What is coastal deposition?

Answer 4

Coastal deposition happens when waves lose energy and drop the sediment they carry.

Question 5

What is deposition likely to occur?

Answer 5

1. Waves enter an area of shallow water
2. Waves enter a sheltered area , e.g. a bay
3. When there is a little wind
4. When there is a good supply of material

Question 6

What are the coastal features of erosion ?

Answer 6

Erosion (formed by destructive waves) - sea cliff , cave , arch , stack , stump , blowhole , wave cut platform

Question 7

What are the coastal features of deposition ?

Answer 7

Deposition (formed by constructive waves - beach , sand split , sand bar , tombolo , lagoon