What is the size and energy of a wave influenced by?
How long the wind has been blowing and the strength of the wind.
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What are waves created by?
The wind blowing over the sea. The pull of the moon also helps create the tides.
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When is deposition likely to occur?
When wave energy is low.
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What is a tombolo?
A bar of sand or shingle joining an island to the mainland.
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What is sometimes created when waves erode a headland?
A cave.
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What are the advantages and disadvantages of building groynes?
Advantages: prevents the movement of beach material along the coast by longshore drift, allows the build-up of a beach. Disadvantages: can be seen as unattractive, expensive to build and maintain?
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What are the advantages and disadvantages of building rock armour?
Advantages: absorb the energy of the waves, allows the build-up of a beach. Disadvantages: can be expensive to obtain and to transport the boulders.
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What is an example of managed retreat?
Allowing areas of coastline to erode and then flood naturally.
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What is weathering?
The breaking down of rock, soil and minerals through contact with the Earth's atmosphere. This occurs in situ (where it stands).
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What is abrasion?
The process of scraping or wearing down surfaces by friction. It is also known as the sandpaper effect.
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What is attrition?
This is when rock is carried through the water; and when two rocks collide, they often break into smaller pieces of rock.
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How does corrosion work?
This is a chemical process and it happens when the water dissolves minerals from the rocks and washes them away.
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What is the definition of hydraulic action?
When waves from a body of water compress air into the pores of rock formations on a coastline.
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Order the following: stacks, arches, stumps and caves.
Caves, arches, stacks and stumps.
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What are the four main processes of transportation and how do they work?
Solution: material is dissolved and carried by the water. Suspension: beach material is suspended and carried by the waves. Saltation: beach material is bounced along the sea floor. Traction: large material is rolled along the sea floor.
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Where is the Hurst Castle spit?
On the South Coast of England and it goes West along the Solent. It's in Keyhaven.
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What are the land uses of the Hurst Castle spit?
It's used as a beach; it also has a lighthouse, a castle and is open to tourists.
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What is currently a major problem for people living in the Maldives?
The rising sea levels could cause it to flood; creating major problems for people living there, especially farmers.
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What is thermal expansion?
If water is heated by 4°C, it expands, which causes the sea to become deeper.
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What is one economic factor in the Maldives, other than tourism?
Fishing.
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What is Barton-on-Sea being used for?
Mostly housing, mobile homes, holiday sights, fishing and sports facilities. Although, over the years, a number of buildings, including a cafe have all been lost to the sea.
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How are salt-marshes formed?
Salt-marshes are usually formed behind a spit, where water movement is slowed down and so more material is deposited. Gradually, halophytes (plants that can survive salty water) get trapped there and vegetation starts to grow.
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Other cards in this set
Card 2
Front
What are waves created by?
Back
The wind blowing over the sea. The pull of the moon also helps create the tides.
Card 3
Front
When is deposition likely to occur?
Back
Card 4
Front
What is a tombolo?
Back
Card 5
Front
What is sometimes created when waves erode a headland?
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