Physical processes 2 (Edexcel GCSE Geography A): Flashcards
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Practise the cards
15 cards from this deck
What happens when waves lose energy?
What happens when waves lose energy?
They deposit sediment
Factor controlling sediment transport vs deposition
Factor controlling sediment transport vs deposition
Wave energy
Process moving sediment along shorelines
Process moving sediment along shorelines
Longshore drift
What influences wave angle in longshore drift?
What influences wave angle in longshore drift?
Prevailing winds
Angle waves hit beach in longshore drift
Angle waves hit beach in longshore drift
45°
Angle backwash returns down beach
Angle backwash returns down beach
90° to shoreline
Movement pattern created by longshore drift
Movement pattern created by longshore drift
Zigzag
Four methods of wave transport
Four methods of wave transport
Traction, saltation, suspension, solution
Transport method for largest materials (boulders)
Transport method for largest materials (boulders)
Traction
Transport method: pebbles bounce along seabed
Transport method: pebbles bounce along seabed
Saltation
Transport method: sand carried in water column
Transport method: sand carried in water column
Suspension
Transport method: minerals dissolve in seawater
Transport method: minerals dissolve in seawater
Solution
Wave type most effective for deposition
Wave type most effective for deposition
Constructive waves
Key characteristics of constructive waves
Key characteristics of constructive waves
Strong swash, weak backwash
Factors promoting wave deposition
Factors promoting wave deposition
Sheltered areas, calm weather, gentle gradients