Coasts Questions Flashcards
(20 cards)
Identify the process by which rocks are broken down in situ.
Weathering.
Which one of the following is the term for the downhill movement of material due to gravity?
Mass movement.
State the term for the movement of sediment along a beach.
Longshore drift.
Identify the process shown by arrow 3 in figure 1.
Backwash.
Explain how waves transport material.
The largest materials such as boulders is rolled along the beach in a process called Traction.
State two differences between destructive and constructive waves.
Destructive waves are whereby the swash is weak and the backwash is strong.
However, constructive waves are low-energy waves that occur in calmer conditions.
Identify the UK’s climatic type.
Temperate but wet.
State one type of weathering that affects rocks along the coastline.
Coastal erosion.
Define the term coastal erosion.
Coastal erosion is the gradual wearing away of material.
Identify the landforms found at a and b.
Headland and a bay.
Explain the formation of a wave-cut platform.
1} The rock face overhangs. 2} The wave-cut notch showing undercutting by the waves. 3} The cliff retreats inland. 4} The overhanging rock has collapsed. 5} This forms the wave-cut platform.
Name the coastal process shown in figure 1.
Coastal recession.
Explain one way in which industry can change the coastal environment.
- It can increase air, noise and visual pollution.
- Can destroy habitats for birds, animals and sea life.
- Brings wealth and jobs to an area.
Explain how coastal recession and flooding can affect the environment.
- Increased deposition further along the coast.
- Wildlife habitats destroyed.
Identify the coastal protection technique labelled b in figure 1.
Sea wall.
Explain how this technique helps to prevent coastal erosion.
- Protects cliffs and buildings.
Examine influential factors that are causing it to change.
Named coastal landscape: Holderness coast.
Coastal process, mass movement and transport.
Hard engineering and the prevention of transport.
Explain why beaches can be firmed of different sediment types.
Beaches can be sandy or pebbly. Shingle beaches are usually found where cliffs are being eroded and where waves are powerful.
Explain the formation of a spit.
1} Spits form where there is a change of wind direction.
2} Prevailing winds mean waves come in at an angle.
3} Sediment is transported by longshore drift and deposition.
4} The spit may be curved because of the change of wind direction.
Explain how strong winds and storms can increase the rate of coastal erosion.
- Coasts are often subject to strong winds increasing the eroding power of the waves.
- Frequent storms can damage coastal landforms like spits.
- Beach sediment can be removed from a section of coastline.
- Sand dunes can be removed by storms.
