Wave types
Name the two wave types
Constructive and destructive
Define erosion
Erosion is the wearing away of rock along the coastline
What is the key term: Trapped air forced into holes and cracks in the rock by the water eventually causes the rock to break apart
Hydraulic action
Where does a river start?
What is soft engineering? And provide an example
Natural protective measures such as embankments
the distance over which the wind has blown the water is known as...
Fetch
Name the 3 types of weathering
Mechanical, biological and chemical
What is both the erosion and transportation process called when the rocks have chemically reacted with the water to dissolve
Solution
What are the 3 courses in a river called?
Upper, Middle and Lower
What is hard engineering? And provide an example
Man made structures like a dams
Which type of wave has a stronger backwash
Destructive
Draw and label a discordant coastline
Mixture of hard and soft rock
Define attrition
Rock fragments carried by the sea knock against one another causing them to become smaller and more rounded
What part of the river would you find a meander?
Middle
When large particles are dragged along the bottom of a river?
Traction
Explain longshore drift (can draw and label)
The wind pushes the swash onto the beach in the direction of the wind, the backwash comes straight back into the sea due to gravity. the wave carries the sand up the beach
When material is dropped by the sea what is is called
Deposition
What is the transportation process called when rocks bounce along the bottom of the seabed?
Saltation
What is the term for erosion that happens on the side of a river?
Lateral
Name of our river management case study
Banbury
Explain why a beach forms in a bay
Due to the bay being sheltered from the headlands the waves do not have any energy to carry the sand so it is deposited
Explain one type of biological weathering
Animals burrowing
Tree roots
Describe what factor affects the rate of both transportation and erosion?
Water energy affected by the winds speed, fetch and strength
A feature formed on the sides (river banks) through deposition in the lower course?
Embankment or Levee
Feature of a river that can be found on the side due to either erosion or deposition
Slip off slope (deposition) or River Cliff (erosion)