Coastal Processes - Waves

Coastlines are mostly different because of:

• Gravity

• Wave action

• Magnetic fields

• Entropy

True or false - once formed, coastlines never change

• True

• False

• Tralse

True or false, coastal regions can be reshaped over the course of decades and centuries.

• True

• False

When waves approach a beach, they stack up due to ______

• Friction with the sea bed

• Fractions with the math

• Gravity with the Coriolis effect

Swash can be defined as:

• The water flowing toward a beach when a wave breaks

• The water flowing away from a beach when a wave breaks

• The movement of water away from the beach back into the ocean

• Small fragments of rock and soil that form layers

Backwash can be defined as:

• The water flowing toward a beach when a wave breaks

• The water flowing in from a beach when a wave breaks

• The movement of water away from the beach back into the ocean

• Small fragments of rock and soil that form layers

This image is showing:

• A destructive wave

• A constructive wave

• A natural wave

This image is showing:

• A destructive wave

• A constructive wave

• A natural wave

A constructive wave has ______ swash and ______ backwash

• strong swash and weak backwash

• weak swash and weak backwash

• strong swash and strong backwash

• no swash or backwash

A destructive wave has ______ swash and ______ backwash

• strong swash and weak backwash

• weak swash and weak backwash

• weak swash and strong backwash

• no swash or backwash