Astronomy Midterm
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Which of the following is not a major pattern of motion in the solar system? | show 🗑
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| Which of the following is not a major difference between the terrestrial and jovian planets in our solar system? | show 🗑
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| Consider the following statement: "Rocky asteroids are found primarily in the asteroid belt and Kuiper belt while icy comets are found primarily in the Oort cloud." What's wrong with this statement? | show 🗑
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| Which of the following is not a real difference between asteroids and comets? | show 🗑
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| The following statements are all true. Which one counts as an "exception to the rule" in being unusual for our solar system? | show 🗑
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| Compared to the distance between Earth and Mars, the distance between Jupiter and Saturn is ______. | show 🗑
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| Einstein's famous equation, E | show 🗑
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| Venus has a higher average surface temperature than Mercury. Why? | show 🗑
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| show | Both planets are nearly the same size.
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| Which of the following statements about the recently-discovered object Eris is not true? | show 🗑
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| Mars has two moons that are most similar in character to: | show 🗑
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| Imagine that an alien spaceship crashed onto Earth. Which statement would most likely be true? | show 🗑
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| Which planet listed below has the most extreme seasons? | show 🗑
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| show | It is made mostly of rock and ice.
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| Why was it advantageous for the Voyager mission to consist of flybys rather than orbiters? | show 🗑
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| Why has NASA sent recent orbiters to Mars (such as Mars Reconnaissance Orbiter) on trajectories that required them to skim through Mars's atmosphere before settling into their final orbits? | show 🗑
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| Suppose you view the solar system from high above Earth's North Pole. Which of the following statements about planetary orbits will be true? | show 🗑
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| show | Mercury, Venus, Earth, and Mars.
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| show | Jupiter, Saturn, Uranus, and Neptune.
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| When we say that jovian planets contain significant amounts of hydrogen compounds, we mean all the following chemicals except ______. | show 🗑
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| Which of the following statements about the asteroid belt is not true? | show 🗑
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| What is the Kuiper belt? | show 🗑
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| show | It's not really a cloud at all, but rather refers to the trillion or so comets thought to orbit the Sun at great distances.
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| show | The Sun's diameter is about 5 times that of Earth.
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| Which of the following is not true of Mercury? | show 🗑
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| show | We could survive on Mars without spacesuits, as long as we brought oxygen in scuba tanks.
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| show | venus
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| Which jovian planet does not have rings? | show 🗑
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| show | The four largest moons of Jupiter: Io, Europa, Ganymede, and Callisto.
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| Which of the following statements about Pluto is not true? | show 🗑
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| The Cassini mission to Saturn consists of: | show 🗑
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| show | Mars
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| Which of the following best explains why we can rule out the idea that planets are usually formed by near-collisions between stars? | show 🗑
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| According to our modern science, which of the following best explains why the vast majority of the mass of our solar system consists of hydrogen and helium gas? | show 🗑
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| show | The law of conservation of energy
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| show | The law of conservation of angular momentum
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| show | It flattened as a natural consequence of collisions between particles in the nebula.
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| show | The temperatures at which various materials will condense from gaseous form to solid form.
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| According to our present theory of solar system formation, which of the following statements about the growth of terrestrial and jovian planets is not true? | show 🗑
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| show | The meteorites appearance and composition is just what we'd expect if metal and rock condensed and accreted as our theory suggests.
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| show | It is even stronger today than it was when the Sun was young.
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| show | The water was brought to the forming Earth by planetesimals that accreted beyond the orbit of Mars.
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| According to our present theory of solar system formation, which of the following objects now reside quite far from the place where they formed originally? | show 🗑
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| What is the primary reason that astronomers suspect that some jovian moons were captured into their current orbits? | show 🗑
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| show | The Pacific Ocean appears to be a large crater - probably the one made by the giant impact.
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| Why are terrestrial planets denser than jovian planets? | show 🗑
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| How do scientists determine the age of the solar system? | show 🗑
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