Astromony Winneconne Chapter 2 Test
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| Scientists believe that universe will | expand forever
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| What do the pattern of lines on a star's absortion spectrum represent? | Some of the elements in the star's atmosphere
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| What type of star has used up all of its hydrogen and is the leftover center of an older star? | White Dwarf
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| What is made up of a large cloud of gas and dust? | Nebula
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| A star's apparent shift in position is called | Parallax
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| What type of galaxy is the Milky Way? | Spiral Galaxy
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| What is cosmology? | The study of the universe's origin, structure, and future
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| What are three types of galaxies orginally identified by Edwin Hubble? | spiral, elliptical, irregular
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| Explain what scientists think will happen to the universe? | The universe will continue to expand.It will become a cold dark wasteland.
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| The study of the orgin, structure,and future of the universe | Cosmology
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| The theory that states the universe began with a huge explosion | The big bang theory
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| radiation left over from the big bang that fills all of space | cosmic backgound radiation
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| If a certain star displays a large parallax, what could you say about the star's distance from earth? | Essay question
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| If you traced the paths of the stars in the night sky over a few hours, they would all appear to circle around the North Star. Why? | Essay question
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| Explain how looking through a telescope is like looking back in time? | Essay Question
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| The color of a star depends on its | temperature
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| What color are the hottest stars? | Blue
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| The H-R digram shows the relationship of a star's surface temperature and its | absolute magnitude
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| The sequence of a stars life from its earlist stage to its latest stage? | Main sequence, red giant, white dwarf
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| What do the patterns of the lines in a star's absorption spectrum represent? | Some of the elements in the star's atmosphere
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| What type of star has used up all of its hydrogen and is the leftover center of an older star. | White dwarf
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| What is the brightest magitude a star can have?What is the lowest magnitude a star can have? | Look in your book on pages 42-43 for the answers
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| the brightness of a star at a distance of 32.6 light-years from Earth | absolute magnitude
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| The brightness of a star as it appears from Earth | Apparent magnitude
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| An apparent shift in an object's postition when viewed from different locations | Parallax
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| The distance light travels in one year | Light-year
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| The band of color produced when white light passes through a prism | spectrum
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| a small, hot, dim star that is the leftover center of an old star. | White dwarf
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| A gigantic explosion that causes the death of a large star | supernova
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| a star in which the electrons and protons have become neutrons | neutron star
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| a spinning neutron star that emits rapid pulses of radio and optical energy | Pulsar
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| a massive and dense object from which even light cannot escape its gravity | black hole
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| the theory that states the universe began wih a huge explosion | big bang theory
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| radiation left over from the big bang that fills all of space | cosmic background radiation
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| the study of the orgin, structure, and future of the universe | cosmology
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