1.2 - Beaches

Question 1

Chesil Beach

Answer 1

Shingle barrier beach
Marine transgression
15 metres high
Wave energy overrides longshore drift

Question 2

Wave Fetch

Answer 2

The distance a wave travels, they pick up energy over distance.

Question 3

Wave Height Decreases

Answer 3

Wave speed decreases as it gets closer to the shore as there is more friction with the seabed

Question 4

Destructive Waves

Answer 4

Common in winter
Stronger backwash
Steeper beach
Smaller beach

Question 5

Constructive Waves

Answer 5

Common in summer
Stronger swash
Gentler beach
LArger beach

Question 6

Backwash

Answer 6

Sediment from the beach being taken back

Question 7

Swash

Answer 7

Sedimnet from the sea taken towards

Question 8

Perculation

Answer 8

Downward movement of water through a beach.

Question 9

Shingle Beach - Constructive Waves

Answer 9

Beach will be relatively flat and big

Question 10

Shingle Beach - Destructive Waves

Answer 10

Sediment dragged away, less material bought in and more lost however percolation reduces pwoer of backwash.

Question 11

Sandy Beach - Constructive Waves

Answer 11

Larger swash, bringing material in, beach will be flat and beach will be bigger however less water percolates.

Question 12

Sandy Beach Destructive Waves

Answer 12

Smaller beach, stronger backwash - no percolation