Astronomy The Solar System

Physics & Astronomy

Quiz 1 :

Thinking Like an Astronomer

Quiz 1 :

Thinking Like an Astronomer

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When a change occurs on the surface of the Sun, how long does it take before astronomers on Earth can see the change?
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A

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A light-year is a unit commonly used in astronomy as a measure of
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D

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A light-hour is a measure of
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B

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If one thinks about the distance between Earth and the Moon, 384,400 km, approximately how much of that distance would Saturn and its rings take up?
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The time it takes light to cross Neptune's orbit is closest to which of the following?
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Our galaxy and the few dozen nearest galaxies are known as the
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The distance to the nearest large spiral galaxy, the Andromeda Galaxy, is 2.4 1022 m.How long does it take light to travel from Andromeda to us?
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One of the nearest stars, Alpha Centauri, is 4.4 light-years from Earth.The time it takes light to travel from Alpha Centauri to us is
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After the Sun, the next nearest star to us is approximately ________ away.
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What is the approximate number of stars in the Milky Way?
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The diameter of the Moon is
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The Sun is a
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The Andromeda Galaxy is also part of the Local Group, so it is also part of
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How many times larger is our galaxy (100,000 light-years across) than our Solar System (11 light-hours across)?
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The number of planets in our Solar System is
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According to the figure below, if you were to specify your address in the universe, listing your membership from the smallest to largest physical structures, it would be img
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Milky Way is the name of
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One of the nearest stars is Alpha Centauri, whose distance from Earth is 4.2 1016 m.How long does it take light to travel from Alpha Centauri to us?
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According to the figure below, Earth is located approximately img
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The average distance between Earth and the Sun is 1.5 1011 m, and light from the Sun takes approximately ________ to reach Earth.
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