Physical

Question 1

How is a Corrie formed?

Answer 1

-Glacier moves downhill due to gravity
-a bergsrund crevasse opens at the back of the hollow
-rotational sliding overdeepens the hollow
-friction causes the ice to slow down at the front edge of the Corrie.
-an example is brown cove.

Question 2

How are sand bars formed?

Answer 2

-Bars form when there is a change in the direction in the coast line allowing a sheltered area for deposition
-material slowly builds up to appear above the water
-if a spit reaches the other side of the bay then a sand bar is formed.
-for example slapton sands

Question 3

How is a waterfall formed?

Answer 3

-differentiwl erosion takes place/soft rock erodes quicker
-undercutting causes an overhang which collapses into the plunge pool due to gravity.
-the plunge pool is deepened by materials from the collapse.
-the waterfall retreats up stream

Question 4

how is a stack formed?

Answer 4

• rocks contain weak points that are more easily eroded
• over time, lines of weakness are enlarged and develop into small sea caves
• in some cases, a blowhole can form in the roof of the cave
  an example is old harry

Question 5

What is an example of a ribbon lake?

Answer 5

Loch muick

Question 6

What happens when former interlocking spurs are cut off by glaciers?

Answer 6

Truncated spurs are formed

Question 7

What is an example of a stack?

Answer 7

Old harry

Question 8

What is an example of a corrie

Answer 8

Brown cove

Question 9

What is an example of a sand bar?

Answer 9

Slapton sands

Question 10

How is a V shaped valley formed?

Answer 10

-vertical erosion cuts downward into the valley
-the valley sides are weathered by freeze thaw weathering
-when gravity pulls loose matierals into the river, this adds to the erosive power of the river.