Constructive waves have a strong swash and a weak backwash so therefore deposit material on the coastline

Destructive waves have a weak swash and a strong backwash so therefore erode material from the coastline

The distance over the sea that the wind has blown when creating waves, is called the fetch

The four types of erosion are hydraulic action, corrasion, corrosion and attrition

The four types of transportation are saltation, traction, solution and suspension

Material can also be transported along the coast in the zig-zag movement called longshore drift