NAME: ________________________
← modern earth science chapter 27: stars and galaxies Test
5 Written Questions
5 Matching Questions
- absolute magnitude
- constellation
- H-R diagram
- spiral galaxy
- parallax
- a Hertz sprung-Russell diagram, a graph that shows the relationship between magnitudes and temperature.
- b method of determining the distance from the earth to a star based on the shift in the apparent position of the star when viewed from different angles
- c a galaxy whose arms curve outward in a pinwheel pattern
- d a measure of the amount of light that a star actually emits
- e A group of stars that form a pattern in the sky
5 Multiple Choice Questions
- star that suddenly becomes much brighter and then returns to its original brightness
- a small, hot, dim star that is the leftover center of an old star
- star with characteristics that place it within a band running thru the middle (diagonally) of the HR diagram
- Name for the change in a star's spectrum when it moves away from Earth
- a system of two stars that revolve around each other under their mutual gravitation
5 True/False Questions
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light-year → Distance light travels in a year
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globular cluster → spherically shaped group of hundreds of stars located around the core of the Milky Way Galaxy
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protostar → inside a nebula, the shrinking, spinning, center region - the 2nd stage in teh development of a star
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galaxy → a collection of star systems
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elliptical galaxy → A spherical or elongated galaxy with a bright center and very little dust and gas - no young stars
Regenerate Test