Slides in this set

Slide 1

Preview of page 1

AQA Specification A ­ GCSE Geography…read more

Slide 2

Preview of page 2

Waves break as they approach shallow water
Swash is a wave going up the beach
Backwash is a wave going back down the beach
There are two types of waves:
Constructive waves deposit beach material
Destructive waves remove beach material…read more

Slide 3

Preview of page 3

Constructive Waves
Constructive waves:
Form in calm conditions with lighter winds
Waves are long in relation to height
Swash is stronger than backwash
Have a frequency of 6-9 per minute…read more

Slide 4

Preview of page 4

Destructive Waves
Destructive waves:
Form in stormy conditions with strong winds
Waves are high in relation to length
Backwash is stronger than swash
Have a frequency of 11-15 per minute…read more

Slide 5

Preview of page 5

Coastal erosion happens in four ways:
Hydraulic power: the force of the waves
crashing into the cliffs
Solution: rocks containing calcium carbonate
are dissolved by seas water
Attrition: pebbles are rolled by the sea, they
rub against each other and so are worn away
Abrasion: sand and pebbles are thrown against
cliffs by breaking waves…read more

Slide 6

Preview of page 6

Longshore Drift
The movement of beach material along a coast
is called longshore drift…read more

Slide 7

Preview of page 7
Preview of page 7

Slide 8

Preview of page 8
Preview of page 8

Slide 9

Preview of page 9
Preview of page 9

Slide 10

Preview of page 10
Preview of page 10


No comments have yet been made

Similar Geography resources:

See all Geography resources »