Midterm 1 - Quiz 5

14 Questions  I  By Naspah
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Midterm Quizzes & Trivia
This quiz is designed to test your knowledge on p waves, s waves, and the Earth's composition.

  
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  • 1. 
    P- and S- waves in the Earth are:
    • A. 

      Pepper and salt waves.

    • B. 

      Primary and secondary waves.

    • C. 

      Pulse and sense waves.

    • D. 

      Pressure and shear waves.

    • E. 

      None of the above


  • 2. 
    "Seismic" is related to the _____ word for "earthquake".
    • A. 

      Etruscan

    • B. 

      Greek

    • C. 

      Latin

    • D. 

      Hebrew

    • E. 

      None of the above


  • 3. 
    S- waves differ from P- waves in that they:
    • A. 

      Travel more slowly (3-4 km/s vs 5-6 km/s)

    • B. 

      Do not travel through liquid parts of the Earth.

    • C. 

      Do not penetrate to the innermost core of the Earth.

    • D. 

      All of the above

    • E. 

      None of the above


  • 4. 
    The interior structure of the Earth is deduced from:
    • A. 

      Analysis of seismic waves.

    • B. 

      Computer models compared with seismic data.

    • C. 

      The magnetic field of the Earth.

    • D. 

      All of the above

    • E. 

      None of the above


  • 5. 
    The "differentiation" of the Earth required that much of the Earth was at one time (in the past):
    • A. 

      Without water.

    • B. 

      Molten.

    • C. 

      A larger planet that included what is now the Moon.

    • D. 

      All of the above

    • E. 

      None of the above


  • 6. 
    The major contributors to the Earth's heat (including high internal temperature of the interior of the Earth) are:
    • A. 

      Violent bombardment by debris from solar system formation.

    • B. 

      Natural radioactivity of the Earth's rock: maily uranium and thorium.

    • C. 

      Energy from the Sun.

    • D. 

      All of the above

    • E. 

      None of the above


  • 7. 
    Most of our detailed information on the Moon's interior comes from:
    • A. 

      Analogy with the Earth.

    • B. 

      Seismic data from seismometers left by astronauts.

    • C. 

      Radar ranging data.

    • D. 

      All of the above

    • E. 

      None of the above


  • 8. 
    Seismic records from the Moon indicate:
    • A. 

      Infrequent but very strong "moonquakes".

    • B. 

      Only very weak "moonquakes".

    • C. 

      Significant plate tectonic(plate motion).

    • D. 

      Confirmation of the "tidal bulge" theory locking Moon revolution and rotation periods.

    • E. 

      None of the above


  • 9. 
    Plate motion (of gigantic parts of the Earth's surface) result in:
    • A. 

      Formation of mountain chains.

    • B. 

      The ocean trenches.

    • C. 

      The "ring of fire".

    • D. 

      Continental drift.

    • E. 

      All of the above


  • 10. 
    Plate motion (on the Earth) is driven by:
    • A. 

      Persistent waves in the upper crust of the Earth.

    • B. 

      Convection cells in the upper mantle.

    • C. 

      Hot spots under Hawaii and Yellowstone.

    • D. 

      Ocean trenches and ocean ridges.

    • E. 

      All of the above


  • 11. 
    "Maria" is related to the _____ words for "seas".
    • A. 

      Etruscan

    • B. 

      Greek

    • C. 

      Latin

    • D. 

      Hebrew

    • E. 

      None of the above


  • 12. 
    In what ways are "maria" on the Moon related to the "seas" on the Earth?
    • A. 

      Lower regions in comparison to continents or highlands.

    • B. 

      Currently (or at one time) are (were) liquid(molten).

    • C. 

      Smoother in comparison to continents or highlands.

    • D. 

      All of the above

    • E. 

      None of the above


  • 13. 
    Because of the different erosion rate today on the Moon (than on Earth) crater walls disappear after approximately:
    • A. 

      1,000 years

    • B. 

      1,000,000 years

    • C. 

      1,000,000,000 years

    • D. 

      Even longer

    • E. 

      No way of estimating


  • 14. 
    The Earth's magnetic field is responsible for:
    • A. 

      Van Allen radiation belts.

    • B. 

      Aurora Borealis.

    • C. 

      Aurora Australis.

    • D. 

      All of the above.

    • E. 

      The solar wind.


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