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30 Cards in this Set

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What are the 2 types of waves?

1. Destructive waves ( powerful and cause erosion)

2. constructive waves(less powerful and cause erosion)

The energy of a wave depends on?


Destructive waves factors

occur in stormy conditions

have high energy

short wavelength

travelled a long distance (large fetch)

have a strong backwash than swash that causes erosion

Constructive wave factors

happen in calm conditions

have lower energy

transport material by longshore drift

cause deposition

have a greater swash than backwash

constructive wave


destructive wave



when the wave breaks and the water travels up the beach

pushes segments up the beach away from the sea


The process of the wave going out

Weathering happens by ......

salt crystal growth


Biological warming


Mass movement

Weather Erosion process

Abrasion/ corossion/ hydraulic action/Attrition

Hydraulic action

water hits the cliff

forcing air into cracks in the cliff face


the dissolving of rocks and minerals by sea water


material carried by the waves become rounder and smaller as it hits other particles

all the sharp edges get knocked off in the process


waves picking up rocks

hitting the cliff

wearing the cliff away

Mass Movement

1.Rock fall

2. Slumping Eroded

Rock fall

thesudden form of mass movement, Fragments of rock break from the cliff face dueto weathering and fall to the base of the cliff.

Slumping Eroded

Thebase of the cliff is eroded by the waves and the top is saturated by rain. Thismakes the slope steeper and the cliff starts to slide downwards because of thesaturation of the rain, Therain also makes the rock heavier.

Biological Warming

Rootsgrow in cracks in the rocks, forcing air into the cracks in cliff face


Rainfalls on the rocks and the acid in the rain can react with minerals causingthem to dissolve and the rock decays.

Salt crystal Growth

Spray from waves land onthe rocks leaving salt behind, Salt crystals grow and create stresses in therock and the rock breaks into small fragments.

Landforms created by erosion

· Headland · Bay· Wave cut platform · Cave. Arch· Stack . Stump





Wave cut platform










Explain the formation of head lands and bays


The process of longshore drift and its impact on the coastline?

1. the process by which beach material is transported along the coastline

2. the direction of the longshore drift reflects the direction of the wind

3. it as a zigzag motion

4. beach material is pushed up and along the beach by the swash

5. material is pulled straight down the beach by the backwash