Waves, wave anatomy, wave types From Chapter 1 of the Yellow A level OCR Geography book. 0.0 / 5 ? GeographyCoastal environmentsA2/A-levelOCR Created by: alex123Created on: 27-09-19 16:48 8210314967 Across 1. Interval between wave crests in seconds known as the wave : (6) 2. after a wave has broken water moves up the beach as (5) 6. wave begins to steepen as the crest ............. ahead of the base (8) 7. generally have a long wave length and a wave period of up to 20 seconds (10) Down 2. steep waves breaking onto gently sloping beaches, the water spills gently forward as the wave breaks (8) 3. greater height, shorter wavelengths and a higher frequency often about 12-14 per min (11) 4. waves slow down as they .......... along the bottom of the sea bed (4) 8. often occur during the winter months and remove material from the top of the beach and transport it to the offshore zone reducing beach gradient. (4, 6) 9. when the water is drawn back down the beach it is called (8) 10. wave length decreases and ...... waves start to bunch up (10)
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