Coasts

Question 0

Describe Swash

Answer 0

Is always at an oblique angle to the beach

Question 1

Why do waves break

Answer 1

Waves start out at sea and have a circular orbit.
As the wave approaches the shore, friction slows the base of the wave.
This causes the orbit to become elliptical until the top of the wave breaks over.
The water swashes up the beach

Question 2

Define backwash

Answer 2

Is always at a right angle to the beech, takes material away

Question 3

Describe the properties of a constructive wave

Answer 3

Stronger swash
Break infrequently
Deposits sediment
Long compared to height
Found on gently sloping beaches

Question 4

Describe the features of a destructive wave

Answer 4

Stronger backwash
Removes sediment
Break frequently 
High compared to length
Steep sloping beaches

Question 5

Soil creep

Answer 5

Pulls water down the hill, moving soil particles with it. It happens very slowly and slopes appear rippled (known as terracetts)

Question 6

Slumping

Answer 6

Aka rotational slipping. When it rains after drought the rock becomes saturated, weakening the rock and the gravity causes it to slip down a slope on a slip plane.

Question 7

Sub areal processes

Answer 7

Include mass movement and weathering
Mud flows
Rock falls
Salt crystals (oxidation)
Vegetation
Freeze thaw action
Soil creep
Slumping