Midterm 1 - Quiz 6

13 Questions | Total Attempts: 124

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Midterm Quizzes & Trivia

This quiz is intended to quiz you on basic concepts of the planet Mercury.


Questions and Answers
  • 1. 
    The orbit of Mercury is such that its angular distance from the Sun is never more than 28 degrees.  As a consequence:
    • A. 

      It can only be seen during full daylight.

    • B. 

      It is generally visible during the 2 to 3 hours just after sunset or just before sunrise.

    • C. 

      It is generally visible during the 1 to 2 hours just after sunset or just before sunrise.

    • D. 

      It can be seen during total solar eclipse.

    • E. 

      None of the above

  • 2. 
    The rotation axis of Mercury is almost perfectly at right angles to the plane of its orbit.  As a consequence Mercury's seasons:
    • A. 

      Are similar to seasons on Earth.

    • B. 

      Are more extreme than seasons on Earth.

    • C. 

      Are almost non-existent(much less seasonal differences than on Earth).

    • D. 

      None of the above

  • 3. 
    Because of "tidal locking" the period of Mercury's rotation on its axis is:
    • A. 

      The same as the Moon's revolution period around the Earth(27.3 days)

    • B. 

      The same as Mercury's revolution period around the Sun(88.0 days)

    • C. 

      2/3 of Mercury's revolution period around the Sun(58.67 days)

    • D. 

      Tidal locking only occurs for the Moon's period around the Earth

    • E. 

      None of the above

  • 4. 
    Becuase of "tidal locking" on Mercury:
    • A. 

      Ocean tides on Mercury occur only once per day.

    • B. 

      As with our Moon, only one "side" of Mercury faces the Sun.

    • C. 

      As with our Moon, only one "side" of Mercury faces the Earth.

    • D. 

      All of the above

    • E. 

      None of the above

  • 5. 
    It would be difficult to breathe on Mercury because:
    • A. 

      Mercury has almost no atmosphere.

    • B. 

      The low escape speed(4.2 km/s) means it is difficult for any atmosphere to "stick" to the planet.

    • C. 

      The heat of mid-day has "boiled away" the atmosphere.

    • D. 

      All of the above

    • E. 

      None of the above

  • 6. 
    Typical "mid-day" high temperatures (at Mercury's equator) are about:
    • A. 

      The same as Earth.

    • B. 

      About the temperature of boiling water on Earth.

    • C. 

      About the temperature of melting lead on Earth.

    • D. 

      About the temperature of melting iron on Earth.

    • E. 

      None of the above

  • 7. 
    Typical "midnight" low temperatures (at Mercury's poles) are about:
    • A. 

      The same as Earth.

    • B. 

      About the temperature of freezing water on Earth.

    • C. 

      About the temperature of freezing carbon dioxide(dry ice) on Earth.

    • D. 

      Somewhat warmer than the temperature of liquifying nitrogen on Earth.

    • E. 

      None of the above

  • 8. 
    Typical "mid-day" high temperatures (at Mercury's equator) are a result of:
    • A. 

      Run away "greenhouse" effect.

    • B. 

      "ozone hole" that extends over the entire planet.

    • C. 

      Burning of fossil fuels.

    • D. 

      Closeness to the Sun.

    • E. 

      None of the above

  • 9. 
    The surface of Mercury looks rather similar to our Moon:
    • A. 

      But less heavily cratered than the Moon.

    • B. 

      But with light colored extensive "inter-crater plains" instead of dark colored "maria".

    • C. 

      But with numerous ridges("scarps") in the crust.

    • D. 

      All of the above

    • E. 

      None of the above

  • 10. 
    Both the Moon and Mercury show evidence of near destructive impacts.  The structures(the evidence we see today) are called:
    • A. 

      Complex craters

    • B. 

      Basins

    • C. 

      Highlands

    • D. 

      Plains

    • E. 

      None of the above

  • 11. 
    Evidence for plate tectonics on Mercury includes:
    • A. 

      Complex craters

    • B. 

      Basins

    • C. 

      Highlands

    • D. 

      Plains

    • E. 

      None of the above

  • 12. 
    Like the Moon, Mercury appears to have been geologically "dead" for roughly the past:
    • A. 

      1 million years (comparable to early man on Earth).

    • B. 

      1 billion years based on current estimates of surface weathering.

    • C. 

      4 billion years using cratering age estimates as for our Moon.

    • D. 

      4.6 billion years (shortly after the formation of the planet).

    • E. 

      None of the above

  • 13. 
    Mercury has a magnetic field that is about:
    • A. 

      1% of the magnetic field of the Earth.

    • B. 

      10% of the magnetic field of the Earth.

    • C. 

      The same as the magnetic field of the Earth.

    • D. 

      10 times the magnetic field of the Earth.

    • E. 

      None of the above