Faults And Folds Quiz

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  • 1/15 Questions

     What is force?

    • The pulling of one object upon another
    • The pushing of one object upon another
    • All of the above
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About This Quiz

Quiz on the faults and folds of the earth

Faults And Folds Quiz - Quiz

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  • 2. 

     What is a fault?

    • A rock forming above the ground

    • The boundary between stationary rocks and moving rocks

    • A hole filled with water

    Correct Answer
    A. The boundary between stationary rocks and moving rocks
    Explanation
    A fault is the boundary between stationary rocks and moving rocks. It is a fracture or break in the Earth's crust where the rocks on either side have moved relative to each other. This movement can be horizontal, vertical, or a combination of both. Faults are commonly associated with earthquakes and can range in size from small, barely noticeable cracks to large, tectonic plate-scale features.

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  • 3. 

    What fault  in southwestern California has been the location of several well known earthquakes?

    • Grand Fault

    • Jose de'langus Fault

    • San Andreas Fault

    Correct Answer
    A. San Andreas Fault
    Explanation
    The San Andreas Fault in southwestern California has been the location of several well-known earthquakes. This fault is a major geological feature that extends for approximately 800 miles through California. It is a transform boundary where the Pacific Plate and the North American Plate meet, causing significant tectonic activity. The movement along this fault has resulted in numerous earthquakes, including the famous 1906 San Francisco earthquake. The San Andreas Fault is therefore the correct answer to the question.

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  • 4. 

    A fold forms- 

    • By the bending or buckling of rocks under great force.

    • When a volcano erupts

    • None of the above

    Correct Answer
    A. By the bending or buckling of rocks under great force.
    Explanation
    A fold forms by the bending or buckling of rocks under great force. This occurs when the rocks are subjected to intense pressure or stress, causing them to deform and fold. This process commonly occurs in areas of tectonic activity, such as where two tectonic plates collide or compress against each other. The force applied to the rocks causes them to bend and fold, resulting in the formation of folds in the Earth's crust.

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  • 5. 

    What type of structure do anticlines form? 

    • Troughlike

    • Archlike

    • None of the above

    Correct Answer
    A. Archlike
    Explanation
    Anticlines are geological structures that form in an arch-like shape. They are characterized by upwardly convex folds in rock layers, where the oldest rock layers are found in the center and the youngest layers are found on the flanks. Anticlines are formed by compressional forces in the Earth's crust, which cause the rock layers to buckle and fold. This arch-like shape is a result of the folding process, where the rocks are pushed upward and the overlying layers are folded over the top.

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  • 6. 

     If forces are applied gently to the crust's rocks, or if the crust's rocks are under high pressure, the rocks may bend as if they were plastic.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    When forces are applied gently to the crust's rocks or when the rocks are under high pressure, they can behave like plastic and bend. This means that instead of breaking or fracturing, the rocks are able to change shape without breaking apart. This behavior is similar to how plastic can be molded or bent without breaking. Therefore, the statement is true.

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  • 7. 

    Faults can suddenly form during earthquakes

    • True

    • False

    Correct Answer
    A. True
    Explanation
    During earthquakes, the movement of tectonic plates can cause sudden shifts and fractures in the Earth's crust. These shifts and fractures, known as faults, can form rapidly during the intense shaking of an earthquake. Therefore, it is true that faults can suddenly form during earthquakes.

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  • 8. 

    What type of stucture do synclines form? 

    • Archlike

    • Troughlike

    • None of the above

    Correct Answer
    A. Troughlike
    Explanation
    Synclines are a type of fold in rock layers where the layers dip downwards in a U-shape. This creates a trough-like structure, with the youngest rock layers in the center and the oldest layers on the sides. Therefore, the correct answer is "troughlike".

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  • 9. 

     According to the theory of plate tectonics, this fault marks the boundary between the Atlantic and North American plates.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    According to the theory of plate tectonics, the boundary between the Atlantic and North American plates is marked by the Mid-Atlantic Ridge, not a fault. Therefore, the statement is false.

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  • 10. 

    When does a strike-slip fault occur? 

    Correct Answer
    when rocks along one side of a fault move horizontally along the fault.
    Explanation
    A strike-slip fault occurs when rocks along one side of a fault move horizontally along the fault. This type of fault is caused by shearing forces that push the rocks in opposite directions. As a result, there is no vertical displacement of the rocks, only horizontal movement. Strike-slip faults are commonly found in areas where tectonic plates slide past each other, such as along transform boundaries. This movement can cause earthquakes and is responsible for the formation of features like fault lines and offset streams.

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  • 11. 

    What are anticlines?

    Correct Answer
    rocks that buckle upward during folding
    Explanation
    Anticlines are rock formations that bend or buckle upward during the process of folding. This occurs when layers of rock are subjected to compressive forces, causing them to fold and create an arch-like shape. The upward bending of the rock layers creates a convex shape, with the oldest layers at the core and the youngest layers on the outer edges. Anticlines often occur in areas where tectonic forces are actively deforming the Earth's crust, such as mountain ranges or regions of plate collision.

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  • 12. 

    When does a thrust fault occur? 

    Correct Answer
    when rocks on one side of a fault are shoved on top of the rocks on the other side.
    Explanation
    A thrust fault occurs when rocks on one side of a fault are pushed or shoved on top of the rocks on the other side. This typically happens in areas where compressional forces are acting, causing the rocks to be pushed together and creating a reverse fault. The rocks are forced to move in a horizontal direction, resulting in one side of the fault being uplifted or thrust over the other side. This type of faulting is common in areas of mountain building and can result in the formation of fold mountains.

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  • 13. 

    What are synclines? 

    Correct Answer
    rocks that bend downward during the folding process
    Explanation
    Synclines are a type of fold in rock formations where the layers of rock bend downward, creating a U-shaped structure. This occurs during the folding process, which is caused by tectonic forces and pressure. The rocks on the inside of the fold are older, while the rocks on the outside are younger. Synclines are often found in mountainous regions and can be seen as valleys or troughs in the landscape.

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  • 14. 

    When does a normal fault occur? 

    Correct Answer
    when rocks along one side of a fault sink vertically.
    Explanation
    A normal fault occurs when the rocks on one side of a fault sink vertically. This type of faulting is caused by tensional forces that pull the rocks apart, causing the hanging wall to move downward relative to the footwall. This can happen when the Earth's crust is being stretched or pulled apart, such as in areas of tectonic plate divergence or during the formation of rift valleys.

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  • 15. 

    What causes earthquakes? 

    Correct Answer
    when forces applied quickly or at a specific angle break the crust's rocks. this fracturing may cause the earth's crust to tremble and vibrate.
    Explanation
    Earthquakes are caused when forces are applied quickly or at a specific angle, causing the rocks in the earth's crust to fracture. This fracturing leads to the trembling and vibrating of the earth's crust, resulting in an earthquake.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 03, 2011
    Quiz Created by
    Testgirl123
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