Geography - Physical Landscapes - Coasts
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Questions and Answers

Which factor does NOT affect wave size?

  • Fetch
  • Wind Duration
  • Water Temperature (correct)
  • Wind Strength
  • Destructive waves have low energy and weak backwash.

    False

    What is the process called when plants break down rocks over time?

    Biological Weathering

    During ________, rocks fall due to gravity.

    <p>Rock Fall</p> Signup and view all the answers

    Match the erosion processes with their descriptions:

    <p>Hydraulic Action = Water pressure forces air into cracks and breaks down rocks Abrasion = Waves act like sandpaper breaking apart rocks Attrition = Waves cause rocks to break into smaller pieces Corrosion = Chemicals in seawater dissolve rocks over time</p> Signup and view all the answers

    What primarily determines the energy of a wave?

    <p>The duration of the wind blowing</p> Signup and view all the answers

    Constructive waves have high energy and strong backwash.

    <p>False</p> Signup and view all the answers

    What is the process called when the actions of the sea break down the land?

    <p>Erosion</p> Signup and view all the answers

    During __________ weathering, rocks are broken down by physical factors like wind and temperature.

    <p>Physical</p> Signup and view all the answers

    Match the types of mass movement with their descriptions:

    <p>Rock Fall = Rocks fall vertically due to gravity Land Slide = Land slides down a slope following an angle in the bedrock Mud Flow = Liquid-like movement where saturated soil flows down a slope Rotational Slip = Material falls on a curved slip-plane</p> Signup and view all the answers

    Match the factors affecting wave size and power with their definitions:

    <h1>Fetch = The distance over which wind blows Wind Strength = The speed of the wind and its gusts Wind Duration = How long the wind is blowing for</h1> Signup and view all the answers

    The ____ the wave, the more ____ it has, the more it can ____.

    <p>bigger, energy, erode</p> Signup and view all the answers

    How do waves form?

    <p>Waves form when wind blows over the surface of the water. Friction between them, and the transfer of energy from wind to water creates waves.</p> Signup and view all the answers

    Match the wave types with their characteristics:

    <p>Constructive = Smaller Waves Destructive = Taller Waves Constructive = Gentle Waves Destructive = Crashing Waves</p> Signup and view all the answers

    What are constructive waves?

    <p>Waves which build up a coast</p> Signup and view all the answers

    What are destructive waves?

    <p>Waves which destroy the coast</p> Signup and view all the answers

    Match the following types of wave processes with their characteristics:

    <p>Constructive = Strong swash Constructive = Weak backwash Destructive = Strong backwash Destructive = Weak swash</p> Signup and view all the answers

    Select the 2 prevailing wind directions along with the body of water they are coming from that have a huge fetch in the UK.

    <p>South-west (Atlantic Ocean)</p> Signup and view all the answers

    Weathering is when processes from the _______ and the _______ (plants and animals) break down ___ over time.

    <p>atmosphere, biosphere, rock</p> Signup and view all the answers

    What is mass movement?

    <p>The downward movement of material due to gravity</p> Signup and view all the answers

    Match the types of weathering with their correct descriptions:

    <h1>Physical weathering = When aspects of physical geography such as wind and temperature break down rocks Chemical weathering = When chemical reactions in the natural environment break down rocks Biological weathering = When living things such as plants break down rocks</h1> Signup and view all the answers

    A _______ coastline is where there is one rock type along the coast. This is when there are ___-shaped bays

    <p>Concordant, crab</p> Signup and view all the answers

    What is a discordant coastline?

    <p>A coastline formed by bands of alternating hard and soft rock</p> Signup and view all the answers

    What is a wave cut platform?

    <p>A flat piece of land (a platform) cut by the action of the waves</p> Signup and view all the answers

    What is a spit?

    <p>A long, thin piece of land attached at one end to the mainland.</p> Signup and view all the answers

    Name one effect of longshore drift on coastal material.

    <p>Becomes smoother and smaller due to attrition.</p> Signup and view all the answers

    Beach nourishment involves removing sand from the beach to keep it narrow.

    <p>False</p> Signup and view all the answers

    Match the coastal management techniques with their descriptions:

    <p>Sea Walls = Concrete barriers that stop waves from hitting cliffs/coasts. Groynes = Structures built to trap sediment and enlarge the beach. Fencing = Constructed to encourage new dune formations. Dune Regeneration = Process of planting vegetation to stabilize dunes.</p> Signup and view all the answers

    Sand dunes can be stabilized by planting __________ grass.

    <p>marram</p> Signup and view all the answers

    What is longshore drift?

    <p>When the motion of the waves move material along a coastline in the same direction as the prevailing wind</p> Signup and view all the answers

    Deposition is when waves lose their ____ and drop _____ at the coast. These are _______ waves.

    <p>energy, material, constructive</p> Signup and view all the answers

    Beach nourishment involves the addition of sand or shingle to narrow the beach.

    <p>False</p> Signup and view all the answers

    Name one technique used in soft engineering for coastal management.

    <p>Beach nourishment or Dune regeneration</p> Signup and view all the answers

    Match the coastal management methods with their descriptions:

    <p>Sea Walls = Concrete barriers that protect the coast from waves Groynes = Structures that trap sediment and enlarge the beach Dune Regeneration = Planting vegetation to stabilize sand dunes Dune Fencing = Encourages new dune formation by protecting existing dunes</p> Signup and view all the answers

    What is the primary purpose of groynes?

    <p>To trap sediment and reduce wave damage.</p> Signup and view all the answers

    Hard engineering techniques include beach nourishment and dune regeneration.

    <p>False</p> Signup and view all the answers

    Where are sand dunes located in the Swanage Case Study?

    <p>North of Swanage</p> Signup and view all the answers

    The process by which longshore drift smooths and decreases the size of materials is called __________.

    <p>attrition</p> Signup and view all the answers

    Which of the following is NOT a characteristic of a discordant coastline?

    <p>It features uniform erosion rates.</p> Signup and view all the answers

    Hard engineering techniques include dune regeneration.

    <p>False</p> Signup and view all the answers

    What type of coastline is Swanage?

    <p>Discordant coastline</p> Signup and view all the answers

    When waves lose their energy and drop material at the coast, this process is known as __________.

    <p>deposition</p> Signup and view all the answers

    Match the following coastal management techniques with their descriptions:

    <p>Sea Walls = Concrete barriers to stop wave erosion Beach Nourishment = Addition of sand to widen the beach Dune Fencing = Protects new dune formations Dune Regeneration = Planting vegetation to stabilize dunes</p> Signup and view all the answers

    Match the following coastal features at Swanage with their corresponding locations:

    <p>Swanage Bay = Bay Durstan Head = Headland Studland Bay = Dunes Ballard Point = Headland</p> Signup and view all the answers

    How are sand dunes formed?

    <p>When sand deposited on the beach by constructive waves is blown inland by offshore winds</p> Signup and view all the answers

    What do dunes need in order to form? (Select all that apply)

    <p>Wind</p> Signup and view all the answers

    Select the 2 conditions needed for dunes to form:

    <p>A large tidal range</p> Signup and view all the answers

    What is one primary reason for protecting Lyme Regis?

    <p>Tourism</p> Signup and view all the answers

    Phase 2 improvements in Lyme Regis cost £________ million.

    <p>22</p> Signup and view all the answers

    How much did the cliff stabilisation in Phase 1 cost in the Lyme Regis Coastal Defence Scheme?

    <p>£1.4 million</p> Signup and view all the answers

    What is one of the main reasons for protecting Lyme Regis?

    <p>Residential areas</p> Signup and view all the answers

    Match the phases of the Lyme Regis Coastal Defence Scheme with what it entailed:

    <p>Phase 1 = New sea wall and promenade, cliff stabilisation (£1.4 million) Phase 3 = Cancelled Phase 4 = 390m sea wall, cliff stabilisation protecting 480 homes (£20 million) Phase 2 = New sea walls, promenades, a sand/shingle beach and an exstention of the rock armour(£22 million)</p> Signup and view all the answers

    In Phase 2 of the Lyme Regis Coastal Defence Scheme a wide sand and ____ beach was created with the sand being imported from ____.

    <p>shingle, France</p> Signup and view all the answers

    What was there an extension of at The Cobb in Phase 2 of the Lyme Regis Coastal Defence Scheme?

    <p>Rock Armour</p> Signup and view all the answers

    Phase 2 of the Lyme Regis Coastal Defence Scheme consisted of the building of a 390m long sea wall.

    <p>False</p> Signup and view all the answers

    The nailing, pilling and drainage in the cliff stabilisation in Phase 4 of the Lyme Regis Coastal Defence Scheme was put in place to protect ___ homes. Cliff stabilisation helps to prevent ___ _______ caused by weathering.

    <p>480, mass movements</p> Signup and view all the answers

    Match the following types of sand dunes with their descriptions:

    <p>Embryo dune = Youngest dune where sand has just started to accumulate Fore dune = Larger than embryo dunes, formed as more sand accumulates and embryo dunes start to join together Yellow dune = These dunes reach up to 5 metres - yellow in colour Grey dune = Dunes that are 8-10 metres high which are grey in colour due to the presence of humus in the soil</p> Signup and view all the answers

    Match the following types of sand dunes/slack with their descriptions:

    <p>Yellow dune = These dunes reach up to 5 metres - yellow in colour Grey dune = Dunes that are 8-10 metres high which are grey in colour due to the presence of humus in the soil Dune slack = Depressions between the dunes where the water table is near to the surface Mayure dune = The oldest dunes (no longer fed by the supply of fresh sand dunes due to distance from the beach)</p> Signup and view all the answers

    List the types of dune in order from youngest to oldest:

    Embyro dune, ___ ___, ____ ___, Grey dune, Dune slack, ____ ___

    <p>Fore dune, Yellow dune, Mature dune</p> Signup and view all the answers

    List the types of dune in order from youngest to oldest:

    _____ ___, Fore dune, Yellow dune, ___ ___, ___ ____, Mature dune

    <p>Embryo dune, Grey dune, Dune slack</p> Signup and view all the answers

    In freeze-thaw weathering, ____ collects in cracks in rocks. The water ____ and expands. This puts _____ on the rock, _____ the cracks and then repeats.

    <p>water, freezes, pressure, widens</p> Signup and view all the answers

    In Haloclasty, when the water _______ it leaves behind ___ crystals in cracks. These salt crystals grow and ____. This puts _____ on the rocks and flakes may eventually ____ off.

    <p>evaporates, salt, expand, pressure, break</p> Signup and view all the answers

    In carbonation, rainwater absorbs ___ from the air and becomes slightly ____. Contact with ____ rocks such as chalk and ______ causes a chemical reaction leading to rocks slowly _______.

    <p>CO2, acidic, alkaline, limestone, dissolving</p> Signup and view all the answers

    Match the types of weathering with their corresponding processes:

    <p>Chemical weathering = Carbonation Physical weathering = Freeze-thaw Chemical weathering = Haloclasty Biological weathering = Plant roots</p> Signup and view all the answers

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