Coasts Key Words Flashcards
What is erosion?
The process by which rocks and soil are broken down and removed from the Earth’s surface.
True or False: Longshore drift is the movement of sediment along a coast by wave action.
True
What is a coastline?
The area where land meets the sea.
What is a wave?
A disturbance that travels through water, transferring energy from one place to another.
Multiple Choice: What type of wave is characterised by a steep face and a low trough? A) Constructive B) Destructive C) Tsunami
B) Destructive
What is sediment?
Small particles of rock and soil that are transported by wind, water, or ice.
True or False: Groynes are built to protect the coastline from erosion.
True
What is a beach?
A landform along the shoreline of an ocean, sea, lake, or river, consisting of loose particles.
Fill in the blank: A ________ is an artificial structure that protects a coast from erosion and storm damage.
sea wall
What is the process of deposition?
The accumulation of sediment in a new location after being transported.
Multiple Choice: Which of the following is NOT a type of coastal landform? A) Spit B) Cliff C) Mountain
C) Mountain
What is a tide?
The regular rise and fall of sea levels caused by the gravitational forces exerted by the moon and the sun.
True or False: A headland is a part of the coast that juts out into the sea.
True
What is an estuary?
The area where a river meets the sea, characterized by brackish water.
Multiple Choice: Which process increases the height of a beach? A) Erosion B) Deposition C) Weathering
B) Deposition
True or False: Wave refraction causes waves to bend as they approach the shore.
True
What is a sand dune?
A hill of sand formed by the wind, typically found near beaches.
What is marine erosion?
Erosion caused by the action of waves and currents on the coastline.
What are constructive waves?
Constructive waves are low-energy waves that build up beaches by depositing sand and pebbles.
True or False: Destructive waves are high energy waves which erode coastlines and remove material.
True
Fill in the blank: The distance over which the wind blows across the water is known as the __________.
fetch
Which type of wave has a stronger backwash, constructive or destructive?
Destructive waves have a stronger backwash.
What is the primary effect of fetch on wave energy?
The greater the fetch, the more energy the waves can accumulate, leading to larger and more powerful waves.
