Learning objective

Explain coastal erosion processes including hydraulic power, abrasion and attrition.

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Topic

Section C: Physical landscapes in the UK

Subtopic

Coastal landscapes in the UK (optional route)

AQA GCSE GeographyLiving with the physical environment

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Understand this objective

Short explanation

Coastal erosion processes are vital in shaping the coastline. Hydraulic power occurs when waves crash against the shore, compressing air in cracks and causing rock to break apart. Abrasion involves the wearing away of the coast as waves carry sand and pebbles that grind against the rock surface. Attrition is the process where these transported materials collide with each other, becoming smaller and smoother over time. Together, these processes contribute to the formation of various coastal features, highlighting the dynamic nature of coastal landscapes in the UK.

Key concepts

coastal erosionhydraulic power

Why it matters

This objective helps connect Coastal landscapes in the UK (optional route) to exam-style questions, flashcards, and revision notes for Section C: Physical landscapes in the UK.

Common mistakes

1 linked

Misunderstanding Erosion Processes: Clarify that hydraulic power involves the force of water impacting surfaces, while abrasion is the wearing away of rock by sediment carried by water, and attrition is the breaking down of rocks as they collide with each other.

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