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