Wave Action and Coastal Features

Question 1

Coastline

Answer 1

An area where the land and sea meet

Question 2

Swash

Answer 2

The movement of a wave onto the coast

Question 3

Wave Length

Answer 3

This is the distance between two successive wave crests

Question 4

Wave Height

Answer 4

The distance from the crest to the trough

Question 5

Fetch

Answer 5

The strech of open water over which the wind (which creates a wave) blows before a wave strikes the coast

Question 6

Shore

Answer 6

The zone which is situated between the low and high water mark

Question 7

Beach Berm

Answer 7

A narrow terrace or shelf deposits( sand, pebbles, etc) which were thrown onto the beach by waves. It is found parallel to the coastline and usually indicates the high water mark

Question 8

Wave frequency

Answer 8

The rate per minute at which waves break onto the shore

Question 9

Wave

Answer 9

The oscillating movement of the sea as wind blows over the water.

Question 10

Wave Backwash

Answer 10

The movement of a wave away from the coast and back to the sea

Question 11

Wave refraction

Answer 11

This is the change of direction of a wave as it approaches a beach