Coastal processes Year 7

(a)   is the movement of water up the beach?

(a)   is the movement of water back down the beach.

Waves that have a strong swash and a weak backwash are known as _____________ waves because they build the beach up.

• Constructive

• Destructive

Waves that have a weak swash and a strong backwash are known as _____________ waves because they destroy the beach up.

• Constructive

• Destructive

The movement of material down slope due to gravity is known as what?

• Erosion

• Weathering

• Mass movement

The break down of rocks into fragments is known as what?

• Erosion

• Weathering

• Mass movement

(a)   is the wearing away of the land.

Choose the correct term.

The force of the waves crashing into the cliffs. Air can get trapped in cracks forcing them to fracture.

• Hydraulic Action

• Abrasion

• Attrition

• Solution

Choose the correct term.

Stones and pebbles smash into each other becoming smaller and rounder.

• Hydraulic Action

• Abrasion

• Attrition

• Solution

Choose the correct term.

waves throw sand and pebbles at the cliff and wear it away.

• Hydraulic Action

• Abrasion

• Attrition

• Solution