Coastal Processes Revision Quiz

What is the definition of the tidal range?

• The highest point the tide reaches in a day

• The distance between the highest and lowest tide points

• The movement of water up the beach

• The strength of the wind blowing across the sea

Which of the following factors affects the size of a wave?

• The depth of the sea

• The strength of the tide

• The wind speed, fetch, and duration of the wind

• The type of sediment on the beach

What is the name of the process where water moves up the beach after a wave breaks?

• Backwash

• Swash

• Fetch

• Longshore drift

Which of the following best describes a destructive wave?

• Long wavelength and weak backwash

• Short wavelength and strong backwash

• Short wavelength and weak backwash

• Long wavelength and strong backwash

What is the main difference between constructive and destructive waves?

• Constructive waves have a strong swash and build beaches, while destructive waves have a strong backwash and erode beaches

• Constructive waves occur at high tide, while destructive waves occur at low tide

• Constructive waves are caused by erosion, while destructive waves are caused by deposition

• Constructive waves form cliffs, while destructive waves create sandy beaches

What is hydraulic action in coastal erosion?

• The process of sediment being dissolved in water

• The impact of waves compressing air into cracks in cliffs, causing erosion

• The movement of sediment along a coastline

• The rolling of large rocks along the seabed

What is longshore drift?

• The transport of sediment in a zigzag pattern along a coastline due to waves approaching at an angle

• The movement of water from deep to shallow areas

• The process of waves eroding headlands

• The effect of tides creating waves

Which coastal process is responsible for forming rounded pebbles and shingle beaches?

• Hydraulic action

• Abrasion

• Attrition

• Solution

What happens when a constructive wave reaches a beach?

• It erodes material from the beach

• It deposits material, building up the beach

• It creates cliffs and headlands

• It transports material offshore

What feature is formed when large shingle is thrown above the usual high tide level during a storm?

• A berm

• A spit

• A stack

• A wave-cut platform