Tides Flashcards

1
Q

tides are caused by

A

The gravitational pull of the sun or moon causes tides

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2
Q

The difference between high and low tide is known as the

A

tidal range

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3
Q

Larger tidal ranges produce

A

stronger tidal currents and this can transport more sediment, particularly in the areas around estuaries

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4
Q

Deposition occurs when waves lose energy
Waves lose energy when:

A

wind slows or changes direction

The wave experiences friction, usually with the sea floor as the depth decreases

When the coastline changes direction such as at an estuary or headland

It is a gradual rather than immediate process

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5
Q

High energy coastlines deposit

and high energy coastline example

A

deposit large rocks and shingle but generally maintain enough energy to carry smaller sediment particles

This is why these types of coastlines tend to have rocky beaches, such as Brighton on the south coast of England

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6
Q

Low energy coastlines deposit

A

smaller sediment due to low wave velocity, creating sandy beaches

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7
Q
A
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