humanities test

Swash

The forward movement of water up the beach after a wave breaks.

Backwash

The water flowing back into the sea after a wave retreats.

Erosion

When waves carry sand and rocks away from the beach.

Deposition

When waves drop sand and rocks onto the shore, making the beach bigger.

What is swash?

The forward movement of water up the beach after a wave breaks.

What is backwash?

The water flowing back into the sea after a wave retreats.

What is erosion in relation to waves?

When waves carry sand and rocks away from the beach.

What is deposition in coastal terms?

When waves drop sand and rocks onto the shore, making the beach bigger.

What is longshore drift?

The process where sand moves along the beach due to angled waves.

sea stack

A tall rock formation that stands in the ocean after erosion removes the surrounding land.

constructive waves

Waves that build up the beach by bringing sand onto it.

destructive waves

Waves that take sand away from the beach.

Why do softer rocks erode faster than harder rocks?

Softer rocks break down more easily from waves, wind, and rain.

What are two characteristics of destructive waves?

They have strong backwash that pulls sand away and are steep and tall.

What causes differences in sand quantity on beaches?

Some beaches have more sand due to strong constructive waves.

What prevents soil erosion near coastlines?

Vegetation helps stabilize the soil and reduces erosion.

How do waves change the shape of the coastline?

Waves cause erosion by breaking down rocks and taking sand away, and they cause deposition by adding sand and rocks.