Flashcard – Waves
What causes waves?
Waves are caused by the transfer of energy from the wind to the sea due to the friction of wind on the water’s surface.
What 3 factors affect the size of waves?
Fetch, wind speed and wind duration
What is a wave?
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A wave is a disturbance on the surface of the sea or ocean, in the form of a moving ridge or swell.
What word describes the movement of a wave down a beach?
Backwash
Describe the swash and backwash of a destructive wave.
Weak swash, strong backwash
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Which type of wave has a strong swash and a weak backwash?
Constructive
What is the fetch of a wave?
The distance a wave has travelled
Identify the two types of wave.
Destructive and constructive
What word describes the movement of a wave up a beach?
Swash
Which type of wave builds beaches?
Constructive
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