Longshore Drift and Coastal Processes

The video explores Longshore drift, a key process in coastal sediment movement. It explains how waves, influenced by prevailing winds, move sediment in a zigzag pattern along the shore. The video discusses the role of natural and artificial barriers in this process and highlights the impact of Longshore drift on coastal landforms. Additional resources for further learning are provided.

What is the primary process responsible for moving sediment along coastlines?

• Wind erosion

• Tidal waves

• River deposition

• Longshore drift

At what angle do the strongest Longshore drift waves approach the beach?

• 90°

• 30°

• 60°

• 45°

What is the role of swash in sediment movement?

• Carries sediment down the beach

• Forms sand dunes

• Pushes sediment up the beach

• Erodes the beach

How does backwash affect sediment on the beach?

• Creates new landforms

• Deposits sediment in the ocean

• Carries sediment up the beach

• Pulls sediment down the beach

What pattern does sediment follow as it moves along the beach?

• Zigzag

• Straight line

• Circular

• Random

What is the purpose of groins in coastal management?

• To increase wave energy

• To slow down waves and reduce sediment loss

• To create new beaches

• To prevent tidal waves

Which features can form as a result of Longshore drift?

• Mountains

• Sandbars, spits, and beaches

• Valleys

• Lakes

Why is Longshore drift important for coastlines?

• It prevents erosion

• It shapes landforms and maintains sediment balance

• It increases wave height

• It stops sediment movement

What should you do if you have questions or video recommendations?

• Ignore them

• Comment down below

• Email the teacher

• Search online

What is the next topic after Longshore drift?

• Desertification

• Mountain formation

• River erosion

• Coastal erosion