GCSE Bitesize - Geography. Waves. Wave Action The size of a wave depends on its fetch.
The fetch is the distance a wave travels. The greater the fetch, the larger the wave. Wind also has a significant effect on the size of waves. Gcsegeographyatheathfield: Coasts. 2.
CAVES, ARCHES, STACKS and STUMPS Once a headland has formed it is then exposed to the full force of destructive waves and it gradually begins to erode. you need to be able to describe the erosion of a headland and the features that form.For the sequence of formation see the animation below: So how does a headland erode and caves, arches, stacks and stumps form? - Firstly, the sea attacks the foot of the cliff and begins to erode areas of weakness such as joints and cracks, through processes of erosion such as hydraulic action, wave pounding, abrasion and solution;