!"FC_Astronomy_Quiz3
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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| What is the main type of gas in the sun? | hydrogen gas
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| The Sun’s energy comes from the _______________ | nuclear fusion of hydrogen to helium
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| What are the main components (layers) of the Sun’s atmosphere? | the photosphere, the chromosphere, and the corona
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| List three active features of the Sun. | Sunspots, solar flares, and prominences
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| When do stars form? | Whenever dense clouds of interstellar gas and dust (called nebulae) exist and collapse
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| Stars have a ______________ lifetime and _____________ over time. | finite, evolve
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| What controls the evolution, legnth of its lifetime, and ultimate fate of a star? | The mass of a star
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| Why does a star change as it ages? | because its internal composition changes as nuclear fusion reactions in its core convert one element to another.
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| The __________ _____________ illustrates the relationship between the absolute magnitude and the surface temperature of stars. | H-R diagram
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| As stars ______________ , their position moves on the H-R diagram. | evolve
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| What are the three main characteristics used to classify stars? | size, temperature, and brightness
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| Red giants, blue giants, white dwarfs, and yellow dwarfs can be plotted on the H-R diagram according to their ______________ . | size and temperature
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| What do we call collections of billions of stars? | Galaxies
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| In which galaxy is our solar system located? | the Milky Way galaxy
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| What are the three basic types of galaxies? | spiral, elliptical, and irregular
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| What do we call the study of the origin and processes for formation of the universe? | Cosmology
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| What do we call our "best" current hypothesis for the origin of the solar system. | solar nebular theory
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| T/F Little of our information about our galaxy and the universe comes from ground-based observations. | False - Corrected Statement Much of our information about our galaxy and the universe comes from ground-based observations.
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| _____________ was the first manned landing on the Moon. | Apollo 11
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| T/F Space technology impacts our everyday lives by spurring the development of weather forecasting, satellite communications, the search for alternative energy sources, and medical advances. | True Space technology impacts our everyday lives by spurring the development of weather forecasting, satellite communications, the search for alternative energy sources, and medical advances.
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| The ____________ Space Telescope provides views of the universe that cannot be made using ground-based telescopes or other satellites. | Hubble
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| The Milky Way is a ____________ galaxy. | spiral
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