Hydraulic action
What Hydraulic action means in Geography GCSE, as defined for AQA, Pearson Edexcel.
Definitions of Hydraulic action
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Reference: AQA
The sheer force of the water traps air in cracks, weakening the banks.
The force of the river water colliding with rocks, compressing air in cracks and breaking the rock apart.
The force of the river water colliding with rocks, forcing air into cracks and breaking them apart.
The sheer force of water compressing air into cracks in the rock, causing the rock to break apart.
Topics that use Hydraulic action
- River landscapes in the UK (AQA GCSE)
- A variety of physical processes interact to shape river landscapes (Pearson Edexcel GCSE)
- Coastal erosion and deposition create distinctive landforms within the coastal landscape (Pearson Edexcel GCSE)
- Erosion and deposition interacting with geology create distinctive landforms in river landscapes (Pearson Edexcel GCSE)
Related terms
- Alluvium
- Lag Time
- Lateral erosion
- Vertical erosion
- Abrasion
- Attrition
- Channel straightening
- Dams and reservoirs
Using Hydraulic action in the exam
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