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Transcript
Models Star Life Cycle HR Diagram Galaxies 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500 Theories Of Universe The length of a stars life depends on The mass of the star At the end of its life, a star like our sun, will most likely become a what? A black dwarf A star, like our sun, was formed from a … Nebula During nuclear fusion, a star converts _?_ to _?_. Hydrogen to Helium The typical life cycle of a star the size of our sun What are the stages of the life cycle? Nebula – Protostar – main sequence – Red Giant –Nova – White Dwarf – Black Dwarf What color are the hottest stars? Blue In what region is our sun found in? Main Sequence In the main sequence, as luminosity increases, temperature _?_. Increases Sirius B is considere d what type of star? White Dwarf What star has the lowest temperature and lowest luminosity? Procyon B How are galaxies classified? By their shape What type of galaxy is our galaxy, the Milky Way? Spiral Where is the Earth’s solar system located in the Milky Way galaxy? 2/3 of the way out on one of its spiral arms. All galaxies are held together by Gravity Which galaxy type has no spiral structure and can vary in shape from round to cigar shape? Elliptical The oscillating theory suggests what about the universe? Big Bang to Big Crunch to Big Bang How are galaxies moving? Away from each other Why does the Hubble telescope take clearer pictures than earthbound telescopes? The Hubble has no atmosphere to hinder the clarity of the pictures What theory suggests the following: -All matter concentrated into one point. -An explosion occurred and things started moving outward Big Bang List the 3 pieces of evidence the support the Big Bang Theory. 1. The universe is expanding, galaxies are moving away from each other 2. Background radiation noise 3. The Universe is mostly He and H The diagram represents which model of the universe? Heliocentric The diagram represents which model of the universe? Geocentric Model The model that states the Sun is the center, everything orbits in an elliptical path, and there are 8 planets. The Current Model The models that stated the Earth is the center with everything revolving around it in a circle. Geocentric and Epicycle The models that stated the sun is the center and everything revolves around it. Heliocentric Elliptical Current
