Coastal Erosion

Question 1

Process

Answer 1

Hydraulic pressure
Wave pounding
Solution
Attrition and wave scouring

Question 2

What causes waves

Answer 2

Wave energy depends on the fetch the strength of the wind and the length of time over which the wind has blown

Question 3

Why do waves break

Answer 3

Waves are the result of the wind blowing over the sea as they approach land they break

Question 4

Constructive wave

Answer 4

Strong swash carries material of the beach
Weak backwash wash
Created in calm conditions like in summer
Build up beach material
Low frequency

Question 5

Destructive waves

Answer 5

Created in stormy conditions like in winter
Material is removed from the coast
Strong backwash
Weak swash
High frequency

Question 6

Why is Cliff erosion greater in the winter?

Answer 6

Repeated cycles eventually break the rock apart therefore there will be more freeze for carrying winter resulting in more weathering of the cliff face