coasts

Question 1

steep beaches, low energy, strong wash and deposition are characteristics of what types of waves?

Answer 1

constructive

Question 2

explain hydraulic action

Answer 2

the force of waves hitting against cliffs/shores going into cracks,compresses and then blows the rocks apart

Question 3

explain attrition

Answer 3

rocks/pebbles smash together, becomes rounder smoother

Question 4

what is abrasion

Answer 4

rocks and pebbles carried by waves are thrown againts cliffs

Question 5

what is solution?

Answer 5

the acid in sea water dissolves minerals in rocks

Question 6

what is swash and backwash?

Answer 6

waves travelling to and from the beach/coast

Question 7

explain hydraulic action

Answer 7

when waves force wind into cliffs

Question 8

describe the process of wavecut platforms

Answer 8

ocean/sea attacks the cliff through abrasion and hydraulic action. The cliff is made from diffrent hard and soft materials. a wavecut notch is formed as the abrasion of soft rocks happens under the headland rock. headland rock formes, cliff retreats, repeats. cliff eventually collapses in on itself - no support.

Question 9

what is discordant coast lands

Answer 9

different rock types which makes up a coast

Question 10

explain longshore drift

Answer 10

constructive waves flow onto beaches by swash at a 45 degree angle. waves are pushed by prevailing wind. rocks/pebbles are carried by longshore drift, the rocks are called shingle. this desopsits material on the beach which stays as the backwash is not as strong.

Question 11

describe the long ass formation of a stack

Answer 11

headland rock is weakens by erosion (abrasion/ hydraulic action), creates cracks. the cracks widen and an arch is formed. the base weakens and the roof (arch) collapses due to no support. A tall rock formation is left standing, this made from headland rock (a coastal stack.) stack isolated from mainland erodes over time at the base. eventually creates a stump.

Question 12

what is a tombolo?

Answer 12

a sand split joint onto another island

Question 13

what is a sand bar?

Answer 13

a sand split joint onto another art of land

Question 14

what is a sand split?

Answer 14

a narrow point of sand projecting out into sea, often has a curve at the end

Question 15

name a solution to litter being left behind by tourists on Dorset’s shores (England)

Answer 15

All bins removed to make tourists/day trippers take their litter home

Question 16

give a solution to locals being scared by live fire at camps from the MOD (on Dorset’s shores)

Answer 16

the MOD place signage to notify people that they are they’re/ what is going on

Question 17

name a solution To difficulty of parking - fights and damaged cars

Answer 17

Lulworth estate build a car park to ease the issue

Question 18

how does a sand split form?

Answer 18

shingle made from small rocks and pebbles is deposited by deposition in shallow water near a beach by constructive waves pushed by paviling winds at a 45 degree angle. As the swash is stronger than the backwash the shingle over time builds up till a long point of sand can be seen projecting out into sea. end often has a hook or curve

Question 19

headland and bay formation is what?

Answer 19

long rock cliff made from one hard material - concordant coastline

A cliff face made from different rock types, discordant coastline, such as limestone and clay. Softer rock erodes because og the waves through hydraulic action with the limestone stuff staying.
softer rock continues to erode over time further inland to create a bay, often with a beach. Band of resistant rock stay on either side of the bay, the headland rock.

Question 20

processes of erosion for a corrie?

Answer 20

Plucking: where rocks freeze to the corrie wall and pluck rocks from it.

freeze thaw: Where water enters a crack in the rocks, freezes, expands and thaws, widening the crack. This process is repeated until the crack forces the rock to break apart.