GEOGRAPHY COASTS KEY WORDS

HideShow resource information
What is weathering?
The break-down of rock by physical or chemical processes.
1 of 13
What are sea walls?
Aim to prevent erosion of the coast by providing a barrier which reflects wave energy.
2 of 13
What is Rip-Rap?
Large boulders dumped on the beach as part as part of coastal defences
3 of 13
What is Long shore drift?
Waves approaching the coast at an angle result in the gradual zig-zag movement of beach materials along the coast.
4 of 13
What is Hydraulic action?
The process by which breaking waves compress pockets of air in cracks in a cliff. The pressure may cause the crack to widen, breaking off rock.
5 of 13
What is Attrition?
Erosion caused when rocks and boulders transported by waves bump into each other and break up into smaller pieces.
6 of 13
What is Abrasion?
Wearing away of cliffs by sediment flung by breaking waves
7 of 13
What is Biological Weathering?
The breakdown of rock through the action of plants and animals
8 of 13
What is Chemical Weathering?
The decomposition (or rotting) of rock caused by a chemical change within that rock; sea water causes chemical weathering of cliffs.
9 of 13
What are Constructive waves?
Found on low-angled beaches and mainly responsible for coastal deposition. They are gently breaking, with a much stronger swash than backwash
10 of 13
What are Destructive waves?
Found on steep beaches, are steeply breaking and mainly responsible for coastal erosion. Their backwash is much stronger than their swash.
11 of 13
What is Erosion?
The wearing away of the land by rivers, ice sheets, waves and wind
12 of 13
What are Headlands?
Areas of land protruding out to sea formed of resistant (harder) rock. They help protect the bay which forms between them from wave attack
13 of 13

Other cards in this set

Card 2

Front

Aim to prevent erosion of the coast by providing a barrier which reflects wave energy.

Back

What are sea walls?

Card 3

Front

Large boulders dumped on the beach as part as part of coastal defences

Back

Preview of the back of card 3

Card 4

Front

Waves approaching the coast at an angle result in the gradual zig-zag movement of beach materials along the coast.

Back

Preview of the back of card 4

Card 5

Front

The process by which breaking waves compress pockets of air in cracks in a cliff. The pressure may cause the crack to widen, breaking off rock.

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Coastal zones resources »