What is a Longshore Current?
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Questions and Answers

What is the primary factor that affects the direction and strength of longshore currents?

  • Contact with other ocean currents
  • Shape of the coastline
  • Wind (correct)
  • Velocity of waves
  • What is the result of a wave breaking at an acute angle on another wave or the beach?

  • The creation of rip currents
  • A decrease in the velocity of the longshore current
  • No change in the velocity of the longshore current
  • An increase in the velocity of the longshore current (correct)
  • What is the primary function of longshore transport?

  • To move sand and sediment parallel to the coastline (correct)
  • To erode the coastline
  • To create rip currents
  • To move sand and sediment perpendicular to the coastline
  • What is the relationship between longshore drift and longshore transport?

    <p>Longshore drift is a factor that enables longshore transport to take place</p> Signup and view all the answers

    What is the result of a strong longshore current on swimmers?

    <p>It makes it difficult for swimmers to return to shore</p> Signup and view all the answers

    What is the term for the water carried onshore by waves?

    <p>Swash</p> Signup and view all the answers

    What is the direction of swash as it arrives onshore?

    <p>At an angle to the shoreline</p> Signup and view all the answers

    What is the result of the combination of swash and backwash on the beach?

    <p>A continuous deposit of sand in a zigzag pattern</p> Signup and view all the answers

    What is the primary force responsible for the movement of backwash into the ocean?

    <p>Gravity</p> Signup and view all the answers

    What is the relationship between beach drift and longshore current?

    <p>Beach drift and longshore current work together to create longshore transport</p> Signup and view all the answers

    What is the primary direction of movement of a longshore current?

    <p>Parallel to the shoreline</p> Signup and view all the answers

    What is another term used to describe a longshore current?

    <p>Littoral current</p> Signup and view all the answers

    What happens when waves from further out to sea meet the longshore current?

    <p>They form a rip current</p> Signup and view all the answers

    What factor does NOT influence the longshore current?

    <p>Distance from the equator</p> Signup and view all the answers

    What is the result of a strong longshore current meeting a rip current?

    <p>A dangerous situation for swimmers</p> Signup and view all the answers

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