Beaches Redone

Question 1

What are the features (5)

Answer 1

Ripples
Runnels
Ridges
Offshore bars
Cusps

Question 2

What are ripples (2)

Answer 2

As waves retreat = create patterns in sand
Only visible at low tide and sandy beaches

Question 3

What runnels and ridges (5+)

Answer 3

As a tide ebbs
It encounters natural raised areas of land = waves slow down
Waves deposit sand
Build up in height = ridges
Any water left from outgoing tide which is trapped = runnels = natural ditches of water

Question 4

What are cusps (5)

Answer 4

Form in bays
As tide comes in bay = wave energy is refracted
The bending of waves causes energy to be spread
As swash comes in = divided left and right and meet with another swash
Two swashes coming together = stronger backwas = gouges + semi circular shape forms

Question 5

Main features of cusp (2)

Answer 5

Eroded area = embayment = tiny little bays within the beach
Horn = where swash is forced to divide

Question 6

What are offshore bars (3)

Answer 6

Deposits of sand of the shore
Winter = beaCh erodes and deposits offshore
Not visible at low tide