Coasts - Beaches

Question 1

Which form of erosion is the main cause of pebbles from cliff material breaking down into sand?

Answer 1

Abrasion

Question 2

What causes pebbles to abrade?

Answer 2

Swash and backwash

Question 3

Beaches are made from eroded material that has been transported from elsewhere.

What types of waves form beaches?

Answer 3

Constructive waves

Question 4

Which is a more likely location for a beach, a headland or a bay?

Answer 4

A bay

Question 5

What is the process called that transports material along the coast?

Answer 5

longshore drift

Question 6

What determines the direction of longshore drift?

Answer 6

The prevailing wind

Question 7

When pebbles and sand move up the beach they move in the same direction as the waves (which move in the same direction as the wind). In which direction do pebbles and sand move down the beach?

Answer 7

Perpendicular to the coastline

Question 8

If viewed from above, what pattern does beach material move along the beach?

Answer 8

Zig-zag