Waves + Beaches

Question 1

Constructive waves

Answer 1

Lower + larger wavelength — 6-8 per minute

Strong, uninterrupted swash - starts at nearshore — makes sediment beam

Question 2

Destructive waves

Answer 2

Higher + smaller wavelength - 13-15 per minute
Slower waves approach steep berm
Circular motion means mass goes on beach

Question 3

Seasonal

Answer 3

Constructive in summer

Destructive in winter

Question 4

Coastal morphology

Answer 4

Changing the shape of the coastline

Question 5

Percolation

Answer 5

Water passing through spaces in ground (pore spaces)

Question 6

Shingle + destructive

Answer 6

Shallow + wide beach
Percolation means backwash not as large
Balanced swash + backwash

Question 7

Shingle + constructive

Answer 7

Steep + wide
Large swash - more deposition of rocks
Percolation makes small backwash

Question 8

Sandy + destructive

Answer 8

Steep + narrow

Little percolation means large backwash

Question 9

Sandy + constructive

Answer 9

Wide + gentle

Large swash means high sediment deposition