EARTH: AN INTRODUCTION TO PHYSICAL GEOLOGY

Chapter 20: Shorelines

Concept #3 Quiz

Choose the best possible answer to the following questions about Key Concept 3 "Sand movement on the beach."

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1. In regard to sand that composes a beach “berm,” at what wave conditions will sand migrate up the beach to add to the berm, or erode from the berm, respectively? [Hint]

2. For most beaches, which season has more berm building, and which season has more berm erosion, and why (for each case)?  

3. Wave refraction occurs when ___________.  

4.

Indicate the best description of the locations of each label on the diagram:  

For each item below, use the pull-down menu to select the letter that labels the correct part of the image.

The letters A through E appear on an image associated with this question.

5. Which of the following is NOT directly related to wave refraction?  

6. Water movement and sand transport parallel to the beach are caused by which of the following?  

7. “Beach drift” of sediment is achieved by which of the following combinations of processes at shorelines?  

8.

Indicate the feature located at each label on the diagram:  

For each item below, use the pull-down menu to select the letter that labels the correct part of the image.

The letters A through E appear on an image associated with this question.

9. Which of the following is NOT the direct result of longshore current action?  

10. Beaches are commonly referred to as “rivers of sand” because coastal zones have sediment and water moving from upstream to downstream, just as a river. However, which of the following is NOT a difference between beaches and rivers in this regard?

before.gif AFTER.GIF
before and after
 

Answer choices in this exercise are randomized and will appear in a different order each time the page is loaded.
 




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