Chapter 4: Coasts

What is the meaning of coast?

• Where the sea meets the ocean

• Where the land meets the land

• Where the land meets the sea

• Where the sea meets the air

Waves are caused by ______________ dragging on the surface of the water

The size of the waves depends on the...

• Length of fetch

• Tilting of the Earth

• Duration of wind blowing for

• Speed of the wind

If the _______________ is stronger than the ________________, it will built up a beach.

The rise and fall of the sea gives you

• earthquake

• tsunami

• tides

• gravity

Read the following situations:

A: Strong wind blowing for 24 hours

B: Light wind blowing for 12 hours

C: Strong wind blowing for 10 hours

Which wind will produce larger waves?

Tides are caused by the gravitational pull from the __________

Which of the following are the processes of erosion?

• Abrasion

• Longshore drift

• attrition

• Hydraulic action

What are the factors that determine the formation of spit?

• The size of the resort

• Prevailing wind

• The type of beach

• The direction of longshore drift

What is one way that authority could do to stop beaches from being carried away by longshore drift?

• Beach nourishment

• Revetments

• Build groynes

• Build a sea wall