Earth Science - Chapter 8 (Earthquakes)

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Earth Science - Chapter 8 (Earthquakes)

Chapters 8


Questions and Answers
  • 1. 
    Who first explained mechanism for earthquakes?
    • A. 

      H. Reid

    • B. 

      M. Reid

    • C. 

      H. Richter

    • D. 

      M. Richter

  • 2. 
    Earthquakes are
    • A. 

      Movements along easements

    • B. 

      Movements along faults

    • C. 

      Movements along rock formations

    • D. 

      Movements along pipelines

  • 3. 
    Earthquakes are produced by
    • A. 

      Avalanches

    • B. 

      Rock formations

    • C. 

      Rapid release of energy

    • D. 

      Breaks in the earth

  • 4. 
    Movement along faults are explained by
    • A. 

      Elastic rebound theory

    • B. 

      Vibration theory

    • C. 

      Fault tectonics theory

    • D. 

      Plate tectonics theory

  • 5. 
    A general feature of an earthquake is 
    • A. 

      Vibration of Earth produced by the rapid release of energy

    • B. 

      Preceded by foreshocks and followed by afterschocks

    • C. 

      Movements along faults

    • D. 

      All of the above

  • 6. 
    Seismology is
    • A. 

      The study of earthquake waves

    • B. 

      The study of earthquake faults

    • C. 

      The study of earthquake energy

    • D. 

      The study of elastic rebound

  • 7. 
    A general feature of an earthquake is
    • A. 

      Associated with movements along faults

    • B. 

      Vibration of the Earth produced by the rapid release of energy

    • C. 

      A & B

    • D. 

      None of the above

  • 8. 
    Rocks spring back is a phenomena called
    • A. 

      Elastic Rebound

    • B. 

      Plate Tectonics

    • C. 

      Seismology

    • D. 

      None of the above

  • 9. 
    Which is an earthquake recording instrument?
    • A. 

      Barometer

    • B. 

      Richter scale

    • C. 

      Seismograph

    • D. 

      None of the above

  • 10. 
    Which instrument records the movement of Earth?
    • A. 

      Seismograph

    • B. 

      Seismogram

    • C. 

      Barometer

    • D. 

      Richter scale

  • 11. 
    A seismogram is ...
    • A. 

      A record of the Earth's movement

    • B. 

      An instrument that records the Earth's movement

    • C. 

      A measure of the energy of the Earth

    • D. 

      A measure of the Earth's faults

  • 12. 
    A seismogram records ...
    • A. 

      Primary vs. secondary waves

    • B. 

      The strength of the earthquake

    • C. 

      Wave amplitude vs. time

    • D. 

      Wave amplitude vs. length

  • 13. 
    What are the main types of earthquake waves?
    • A. 

      Body waves, surface waves

    • B. 

      Primary waves, secondary waves

    • C. 

      Short waves, long waves

    • D. 

      Slow waves, fast waves

  • 14. 
    Surface waves are ...
    • A. 

      Simple in motion and the slowest velocity of all waves

    • B. 

      Simple in motion and the greatest velocity of all waves

    • C. 

      Complex in motion and the greatest velocity of all waves

    • D. 

      Complex in motion and the slowest velocity of all waves

  • 15. 
    Which is true about a surface wave?
    • A. 

      Has complex motion

    • B. 

      Greatest velocity of all waves

    • C. 

      Push-pull (compressional) motion

    • D. 

      Travels through solids, liquids and gases

  • 16. 
    Which waves are made up of primary and secondary waves?
    • A. 

      Surface waves

    • B. 

      Body waves

    • C. 

      Velocity waves

    • D. 

      Solid waves

  • 17. 
    Which is true about primary waves?
    • A. 

      Have a "shake" motion

    • B. 

      Travel only through solids

    • C. 

      Have slower velocity than secondary waves

    • D. 

      None of the above

  • 18. 
    Which is true about primary waves?
    • A. 

      Travel through solids, liquids and gases

    • B. 

      Have a "shake" motion

    • C. 

      Travel only through solids

    • D. 

      Slower velocity than secondary waves

  • 19. 
    Which is true about secondary waves?
    • A. 

      Push-pull (compression) motion

    • B. 

      Travels through solids, liquids and gases

    • C. 

      Slower velocity than primary waves

    • D. 

      None of the above

  • 20. 
    Which is true about primary waves?
    • A. 

      Push-pull (compressional) motion

    • B. 

      Travel through gases only

    • C. 

      Slowest velocity of all waves

    • D. 

      All of the above

  • 21. 
    Primary and secondary waves are ....
    • A. 

      Body waves

    • B. 

      Surface waves

    • C. 

      Vibration waves

    • D. 

      Velocity waves

  • 22. 
    Which is true about primary waves?
    • A. 

      Greatest velocity of all earthquake waves

    • B. 

      Slowest velocity of all earthquake waves

    • C. 

      Shortest of all earthquake waves

    • D. 

      None of the above

  • 23. 
    Which is true about secondary waves?
    • A. 

      "Shake" motion

    • B. 

      Travel only through solids

    • C. 

      Slower velocity than primary (P) waves

    • D. 

      All of the above

  • 24. 
    The place within the Earth where the earthquake originates is the ...
    • A. 

      Focus

    • B. 

      Diameter

    • C. 

      Epicenter

    • D. 

      Magnitude

  • 25. 
    The epicenter is the ...
    • A. 

      Place where the earthquake originates

    • B. 

      Recording of the earthquake's movement

    • C. 

      Point on the surface directly above the focus

    • D. 

      Distance of the earthquake

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