Understanding Wave Types and Their Impact on Beaches

What are the two main types of waves discussed in the video?

• Longshore and Rip

• Seismic and Surface

• Tidal and Tsunami

• Constructive and Destructive

Which characteristic is true for destructive waves?

• They have a strong swash and weak backwash.

• They deposit sediment on the beach.

• They have a weak swash and strong backwash.

• They are common on gentle sandy beaches.

What is the typical wave frequency of destructive waves?

• 1 to 3 per minute

• 20 to 25 per minute

• 13 to 15 per minute

• 6 to 8 per minute

How do constructive waves affect the beach?

• They erode the beach by carrying away sediment.

• They create steep shingle beaches.

• They build up the beach by depositing sediment.

• They have a circular motion in deep water.

What is a unique feature of constructive waves when they approach at an angle?

• They create beach cusps.

• They form rip currents.

• They increase wave height.

• They cause beach erosion.