Weathering and Erosion

Question 1

What are the 3 main types of weathering?

Answer 1

Mechanical, Biological, and Chemical

Question 2

What are the 2 main types of waves?

Answer 2

Constructive and Destructive

Question 3

What are the 4 main types of erosion?

Answer 3

Hydraulic action, Abrasion, Attrition, and Solution

Question 4

Destructive waves have a stronger __________ than ___________, meaning they drag more material away from the coastline than is deposited on the shore.

Answer 4

backwash, swash

Question 5

Where will bays form?

Answer 5

Bays would form in places where the less resistant rock between bands of more resistant rock gets pushed by the water and gets eroded.

Question 6

What determines the angle at which the swash moves up the beach?

Answer 6

Prevailing wind direction

Question 7

What is a longshore drift and what does it do?

Answer 7

Longshore drift transports material along coastline, causing sediment to repeatedly move and get carried along a beach.

Question 8

Why are some beaches sandy?

Answer 8

Sandy beaches are created by sand being deposited on the shoreline, making them usually very long, wide, and flat because particles of sand are very small and easy to wash back into the ocean with the backwash.

Question 9

Why are some beaches rocky?

Answer 9

Rocky beaches are made when pebbles and shingle are deposited on the coast. Shingle and pebbles are big and hard to wash back into the ocean, so they build up making short and steep beaches.

Question 10

Why does deposition happen?

Answer 10

Deposition happens when constructive waves break on the shore. The sediment being carried by the sea is deposited on the shoreline.