What are constructive waves? What are destructive waves? What is the difference between swash and backwash?
This is the thirty-fifth video for the AQA GCSE 9-1 Geography course, and the second video of the Physical Landscapes topic.
The Physical Landscapes Playlist:
» [ Ссылка ]
Follow me on all platforms:
» [ Ссылка ]
Do you have a video suggestion?
» [ Ссылка ]
Video Script:
There are two main types of wave, constructive and destructive, with unique characteristics that differentiate them.
But before we get started, there’s a few important key terms.
Wavelength is the distance between the crests (top) of the waves. The swash is the water going towards the beach, whereas the backwash is the water flowing back to the sea.
Constructive waves have:
A short wave height
Long wavelength
Low frequency
Gently sloping wave front
Strong swash, which is the water going towards the beach.
Weak backwash, which is the water flowing back to the sea.
They construct beaches, and they are more common in calmer weather conditions.
Destructive waves have:
A tall wave height
Short wavelength
Steep wave front
High frequency
Weak swash
Strong backwash
Due to this strong backwash and as implied by the name, they destroy beaches. They are more common in stormy conditions.
--
GCSE Geography
07/05/2023
Keducate
