Flashcards
Geography AQA Spec B Coasts Flashcards
Cards in this deck (3)
- 1What is Hydraulic Action?Hydraulic Action is the constant force of waves crashing on the shore. When waves crash against the cliffs they force air into cracks in the rock. The air is trapped, and pressure builds up. As the waves move back, pressure is released and the trapped air expands. Small explosions take place and weaken the rock, blasting fragments away.
- 2What is a coastThe coast is the narrow strip of shoreline that separates the land from the sea
- 3What is a constructive wave?Constructive waves are low energy waves that tend to arrive at the coast at a rate of less than 8 waves per minute. Constructive waves are small in height. They have a strong swash and a weak backwash. This means that constructive waves tend to deposit material and build up a beach
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- Flashcards on Geography AQA Spec B Coasts Flashcards, created by willo543 on 14/11/2014.
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