HCC Paper 1 Coasts

definition of weathering

• the erosion of rocks

• the breakdown of rocks by the sea

• the erosion of rocks by the weather, sea, humans

• the breakdown of rocks in 1 place by the weather

An example of weathering is...

• freeze thaw/frost shattering

• wetting/drying

• abrasion

• Hydraulic action

Give a definition of coastal erosion

• the breakdown of rocks by the sea

• scrasion

• the wearing away and removal of rock by the sea

• saltation

what do you call a wave going up the beach

• longshore drift

• constructive

• swash

• backwash

what is the correct definition of longshore drift?

• the up and down movement of shingle

• the zig zag movement of beach material along the coast

• the way that material is bounced along the seabed

• a combination of constructive and destructive waves

what is the name for the base of the old cliffs, often exposed at low tide.

• delta platform

• stack platform

• wave cut platform

• beach platform

Constructive waves...

• Are tall in relation to width
• have a stronger swash than backwash
• have a stronger backwash than swash
• occur most often in winter

How do beaches form? 

• Beaches are found between the high water mark and low water mark. They are formed by destructive waves. 
• Beaches are found between the high water mark and low water mark. They are formed by constructive waves. 

How to headlands form? 

• Headlands form when there are alternating bands of rock (hard and soft). The soft rock is eroded more quickly leaving the hard rock sticking out.
• Headlands form when there are alternating bands of rock (hard and soft). The hard rock is eroded more quickly leaving the soft rock sticking out.

What are the 2 main erosional processes that act on headlands ?

• Abrasion and hydraulic action
• Action and knocking
• Deposition and transportation