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Search for winter break. Are we there yet?. IDea. A. Individuals with Disabilities Education Act B. Individual Development and Educational Assessment C. International Debate Education Association D. Institutional Diagnostic and Evaluation Activity. Intro to Astronomy diagnostic.
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Search for winter break Are we there yet?
IDea A. Individuals with Disabilities Education Act B. Individual Development and Educational Assessment C. International Debate Education Association D. Institutional Diagnostic and Evaluation Activity
Intro to Astronomy diagnostic Will compare this to what you entered in August
Final exam • Monday December 12, 2011 • Online • Mastering Astronomy • 5:30 to 7:30 PM
The final four • The Milky Way Galaxy • Galaxies and Dark Matter • Cosmology • Life in the Universe
The milky way galaxy • What is the size and shape? • Number of stars • Bulge, disk and halo • Orbital motion • How do we know the distances? • What is the mass? • How did it form? • What is in the center? • Where are we?
How big is the milky way galaxy? • 10 kpc or 33 light years • 30 kpc or 100 light years • 100 kpc or 330 light years • 300 kpc or 1000 light years • 1000 kpc or 3300 light years
How many stars are in the milky way? • 100 million • 1 billion • 10 billion • 100 billion • Infinite
Three parts of a galaxy • Emission, secretion, legislation • Photosphere, hemisphere, troposphere • Bulge, halo, disk • Hood, fender, trunk • Core, disk, edge
How fast does the sun travel? • 220 km/s • 525 km/s • 1250 km/s • 2250 km/s • 5500 km/s
How do we measure galactic distances • Radar • Parallax • Supernovae • Variable stars • Quasars
How much mass in the milky way? • 6 x 103 solar masses • 6 x 106solar masses • 6 x 109solar masses • 6 x 1011solar masses • 6 x 1015solar masses
Galaxies form out of…. • Nomadic stars • Black hole boundaries • Massive gas clouds • Stellar farms • Interstellar gas
The center of our galaxy contains a … • Supernova • White dwarf • Planetary nebula • Black hole • Dark matter cloud
Where in the galaxy are we? • Near the edge of the bulge • Near the outer edge of the galaxy • In the disk about half way between the center and edge • Just below the galactic disk near the bulge • Outside the disk but far from the galactic center
Normal and active galaxies • Classification of galaxies • Distances to galaxies • Clusters • Hubble’s law • Active galaxies and quasars
Types of galaxies • Spirals, non-spirals, spherical, non-spherical • Symmetrical, open, closed, flat • Spirals, barred spirals, ellipticals, irregulars • Hubble, Barlow, Shapley, Norton
Our local cluster is part of which supper cluster? • Maganelinic • Polar • Giant • Virgo • Cygnus
Hubble’s law states that the more distant an object is the greater the… • Rotational speed • Mass • Number of stars • Size of the cluster • Redshift
An accretion disk might be found where? • Globular cluster • Open cluster • Planetary nebula • Center of active galaxy • Next to a brown dwarf
Galaxies and Dark Matter • Where is the dark matter • Galaxy collisions • Galaxy formation • Black holes and active galaxies • Universe on a large scale
Why do we think there is dark matter? • High rotational rate of galaxies • It blocks the light from distant galaxies • We can weigh it • It is pushing galaxies apart • It covers black holes
Collisions between galaxies is rare. • True • False
Galaxies can evolve from what process? • Chance encounters • Mergers • Collisions • All of the above
What are Active galaxies? • Those with supermassive black holes • Those with like the milky way • Those that are growing in size • Those that are very luminous • Small but dense galaxies
We know the size of the universe from… • Radar images • Pulsar star maps • Quasar maps • Cluster and void maps • Redshift surveys
Cosmology • Cosmological principle • Big Bang • Geometry of space • Fate of the universe • History of the universe
The universe seems to have no edge or… • Age • Center • Color • Geometry • Sense of humor
The big bang theory is supported by … • CBS • CMB • CLS • CIA • CPR
The universe is thought to be … • Flat • Open • Closed • Infinite
We think the universe will do what? • Continue to get larger • Collapse • Slow down just enough to stay the same size for the rest of time • Expand and collapse over and over
Looking at distant galaxies is like … • Looking forward in time billions of years • Looking backward in time billions of years
Life in the universe • Cosmic evolution • What is life • Local hosts • Distant hosts • SETI
Which came first in cosmic evolution? • Galactic • Planetary • Biological • Chemical • Particulate
Which is not considered part of life • Reacts to environment • Grow by taking in nourishment • Capable of reproduction • Ability to evolve • Absorb sunlight
The habitable zone is also called what? • Goldilocks zone • Cinderella zone • Wizard of Oz zone • Doughnut hole zone • Auto Zone
Presence Amino acids prove what? • There is life • There was life • There might be life • Humans were there • Other life forms were there