Exam 2 Astronomy 104 Fall 2007
Format of the exam
In general the format of this exam will be similar to the first exam.
One new feature is the identification of types of objects from images (see
below).
- 5 image identification (see below)
- 10 - 15 points for "matching"
- 5-10 multiple choice
- 5-10 very short answer (one word answers)
- 2 - 5 short answer (answer with one or two sentences)
- 1 long "essay" ( one page answer...bulleted list of points is okay)
- 4 problems (similar to the various "practice problems" handouts and the
problems we have done in class)
Image identification: For part of this you will be asked to identify
different types of objects such as: emission nebula, reflection nebula,
dark nebular, open cluster, globular cluster, and planetary nebula. Look here for examples of the
different
types of objects. Do not worry about "planetary
nebula" that are given in the example images.
Note that there will be a section with questions about stars on
the HR diagram. (This is part of what I listed as "matching")
List of topics (by chapter) for exam 2
Review the weekly study questions, the in class worksheets, and the
practice problems
Chapter 2 (week 5)
- Kepler's laws (especially the 3rd)
- Newton's law of gravity
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ellipse
astronomical unit
eccentricity
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Chapter 17 (week 5 & 6)
- HR diagram
- spectroscopic parallax
- binary systems
- masses in binary systems (Kepler's 3rd law revisited)
- mass-luminosity relation
- mass-lifetime relation
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- luminosity class
- HR diagram
- visual binary
- optical binary
- spectroscopic binary
- spectrum binary
- astrometric binary
- eclipsing binary
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Chapter 18 (week 6 and 7)
- effects of gas and dust on starlight
- characteristics of interstellar dust
- characteristics of emission nebulae
- characteristics of reflection nebulae
- characteristics of absorption nebulae
- characteristics of molecular clouds
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- interstellar medium
- polarization
- extinction
- reddening
- emission nebula
- reflection nebula
- absorption nebula
- molecular cloud
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Chapter 19 (week 7)
- star forming regions
- formation of solar mass stars
- observational evidence of star forming regions
- characteristics of open clusters
- characteristics of globular clusters
- supplemental reading:
- EGGS (evaporating gaseous globules)
- Photoevaporation
- protostellar winds; bipolar jets; HH objects
- star clusters
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- evolutionary track
- protostar
- zero-age main sequence
- open cluster
- globular cluster
- Evaporating gaseous globules
- photoevaporation
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