F.4 Waves Quiz

What defines a coast?

• The area where land meets the sea

• Only the land side of the sea

• The underwater region of the ocean

• A specific type of beach

What are the main components of a wave?

• Crest, trough, wavelength, wave height

• Crest, peak, valley, frequency

• Wave height, length, speed, direction

• Trough, crest, depth, pressure

How is a wave formed?

• By calm air

• Through the gravitational pull of the moon

• By wind blowing over the surface of the water

• Due to temperature changes in the ocean

Which factor does NOT influence the size of waves?

• Wind speed

• Wind duration

• Water temperature

• Fetch (distance over water)

How does the wind contribute to the formation of large waves in Hawaii?

• Strong, consistent winds blow over long distances

• Calm winds allow waves to form

• Variable winds disrupt wave patterns

• Offshore winds prevent wave growth

What is the term for the distance over which the wind blows across the water?

• Amplitude

• Wavelength

• Frequency

• Fetch

What is the term for the highest point of a wave?

• Trough

• Crest

• Wavelength

• Wave height

What is the difference between constructive and destructive waves?

• Constructive waves are faster; destructive waves are slower

• Constructive waves build up beaches; destructive waves erode them

• Constructive waves only occur in deep water; destructive waves occur in shallow water

• There is no difference

Which of the following is a characteristic of destructive waves?

• Long wavelength and low frequency

• Gentle approach and gradual breaking

• Occur only at high tide

• High energy and steep profile

A wave with a strong swash and a weak backwash is...

• Destructive

• Constructive