Physical processes 1 (Edexcel GCSE Geography A): Quizzes
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12 questions from this quiz
What are the three main physical processes that continuously shape coastlines?
What are the three main physical processes that continuously shape coastlines?
Weathering, mass movement, erosion
What is the key characteristic of weathering compared to other coastal processes?
What is the key characteristic of weathering compared to other coastal processes?
It breaks down rocks in the same place
What is carbonation in coastal weathering?
What is carbonation in coastal weathering?
Acid in rainwater dissolving limestone
What are piddocks in the context of biological weathering?
What are piddocks in the context of biological weathering?
Marine molluscs that bore into rocks
By approximately what percentage does water expand when it freezes in rock cracks?
By approximately what percentage does water expand when it freezes in rock cracks?
9%
What is mass movement?
What is mass movement?
Downhill transport of material by gravity
What are slip planes in the context of sliding?
What are slip planes in the context of sliding?
Surfaces of weakness in cliff structure
Along what type of surface does slumping occur on clay coastlines?
Along what type of surface does slumping occur on clay coastlines?
Curved slip planes
When is mass movement particularly active on coastlines?
When is mass movement particularly active on coastlines?
During periods of heavy rainfall
How does abrasion erode the coast?
How does abrasion erode the coast?
Waves hurl debris against rocks
What happens during hydraulic action when a wave retreats?
What happens during hydraulic action when a wave retreats?
Compressed air in cracks expands rapidly
What is attrition in wave erosion?
What is attrition in wave erosion?
Rocks collide and break into smaller bits