Coastal Landscapes

Question 1

what are the 3 main factors which influence the size of a wave?

Answer 1

1) wind velocity
2) duration
3) the FETCH

Question 2

define wind velocity

Answer 2

speed of the wind

Question 3

define duration, in terms of a wave

Answer 3

the length of time the wind has been blowing over the sea

Question 4

define FETCH.

Answer 4

the distance over which the wind has been able to blow across the water

Question 5

define swash.

Answer 5

water washing up the beach when a wave breaks

Question 6

define backwash.

Answer 6

when the wave runs back down the beach to the sea

Question 7

what are destructive waves?

Answer 7

waves responsible for coastal erosion, characterized by a strong backwash that pulls sediment away from the beach

Question 8

what are constructive waves?

Answer 8

waves responsible for deposition in coastal areas, builds up beaches by depositing more material than it removes