Take The Practice Questions Test On Astronomy! Quiz

12 Questions | Total Attempts: 172

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Take The Practice Questions Test On Astronomy! Quiz

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Questions and Answers
  • 1. 
    • A. 

      10 thousand

    • B. 

      100 thousand

    • C. 

      1 million

    • D. 

      10 million

    • E. 

      How many more times is the atmospheric pressure in Jupiter's core greater than the atmospheric pressure at Earth's surface? A) 10 thousand B) 100 thousand C) 1 million D) 10 million E) 100 million

  • 2. 
    • A. 

      It is the same size and mass.

    • B. 

      It is about 10 times larger both in size and mass.

    • C. 

      It is about 10 times larger in size and the same mass.

    • D. 

      It is about the same size but is 10 times more massive.

    • E. 

      Jupiter doesn't have a coreā€”it is made entirely from hydrogen and helium.

  • 3. 
    • A. 

      It is made of a different composition than Saturn, including a higher proportion of hydrogen compounds and rocks.

    • B. 

      The extra mass of Jupiter compresses its interior to a greater extent than that of Saturn.

    • C. 

      Its core is much larger than Saturn's.

    • D. 

      It has a greater proportion of helium to hydrogen compared to Saturn.

    • E. 

      Scientists do not know why this is so.

  • 4. 
    • A. 

      Jupiter's greater mass compresses it more, thus increasing its density.

    • B. 

      Saturn's rings make the planet look bigger.

    • C. 

      Saturn is further from the Sun, thus cooler, and therefore less compact.

    • D. 

      Saturn has a larger proportion of hydrogen and helium than Jupiter, and is therefore less dense.

    • E. 

      Jupiter's strong magnetic field constrains its size.

  • 5. 
    • A. 

      All have cores of about the same mass, but differ in the amount of surrounding hydrogen and helium.

    • B. 

      The core mass decreases with the mass of the planet.

    • C. 

      The composition changes from mostly ammonia in Jupiter and Saturn to mostly methane in Uranus and Neptune.

    • D. 

      The composition changes from mostly hydrogen in Jupiter and Saturn to mostly helium in Uranus and Neptune.

    • E. 

      All have about the same amount of hydrogen and helium but the proportion of rocks is greater in those planets closer to the Sun.

  • 6. 
    • A. 

      It is too small to have been bombarded by planetesimals in the early solar system.

    • B. 

      Jupiter's strong gravity attracted the planetesimals more strongly than Io and thus none landed on its surface.

    • C. 

      Io did have impact craters but they have all been buried in lava flows.

    • D. 

      Any craters that existed have been eroded through the strong winds on Io's surface.

    • E. 

      Io's thick atmosphere obscures the view of the craters.

  • 7. 
    • A. 

      Accretion

    • B. 

      Radioactive decay

    • C. 

      Differentiation

    • D. 

      Tidal heating

    • E. 

      Bombardment

  • 8. 
    • A. 

      Methane

    • B. 

      Nitrogen

    • C. 

      Hydrogen compounds

    • D. 

      Oxygen

    • E. 

      Argon

  • 9. 
    • A. 

      It may have an ocean of liquid ethane.

    • B. 

      Its atmosphere is mostly nitrogen.

    • C. 

      Its temperature is too cold for liquid water to exist.

    • D. 

      Its surface is hidden from view by its thick atmosphere.

    • E. 

      It is the coldest moon in the solar system.

  • 10. 
    • A. 

      A few million kilometers

    • B. 

      A few tens of thousands of kilometers

    • C. 

      A few hundred kilometers

    • D. 

      A few kilometers

    • E. 

      A few tens of meters

  • 11. 
    • A. 

      A dark ring, visible from Earth, composed of dark, dusty particles

    • B. 

      A large gap, visible from Earth, produced by an orbital resonance with the moon Mimas

    • C. 

      The imaginary circle marking the halfway point of Saturn's rings

    • D. 

      The widest ring of Saturn, located between two large ring gaps

    • E. 

      The most opaque ring of Saturn, made of highly reflective ice particles

  • 12. 
    Which of the jovian planets have rings?
    • A. 

      Jupiter

    • B. 

      Saturn

    • C. 

      Uranus

    • D. 

      Neptune

    • E. 

      All of the above