Coast transportation

Question 1

Longshore drift definition

Answer 1

material transported along coasts

Question 2

How does transportation of material work

Answer 2

waves follow the direction of the wind, usually hitting the coast at an angle, swash carries material up the the beach with the waves, backwash then carries material down the beach perpendicular to the coast towards the sea, over time material zig zags along the coast

Question 3

4 processes of transportation

Answer 3

traction, saltation, solution, suspension

Question 4

Traction definition

Answer 4

large stones or boulders are pushed along the sea bed by the force of the water

Question 5

Saltation definition

Answer 5

pebble-sized particles are bounced along the sea bed by the force of the water

Question 6

Suspension

Answer 6

small particles like silt are carried along in the water

Question 7

Solution

Answer 7

soluble materials dissolve in the water and are carried along

Question 8

Deposition definition

Answer 8

material being carried by the seawater is dropped on the coast

Question 9

When does deposition occur

Answer 9

when water carrying sediment slows down so it isn’t moving fast enough to carry so much sediment

Question 10

Deposition is increases when

Answer 10

lots of erosion (lots of material), lots of transportation, low energy waves (can carry in material but not strong enough to carry it away)

Question 11

Which waves carry in more material and their features

Answer 11

constructive waves, low frequency, low and long, swash is powerful and carries material up, backwash is weak so doesn’t take material back down