Syllabus
| Quiz 1 | Quiz
2 | Quiz 3 | Review
Sessions
STUDY GUIDE FOR THE FINAL
The final is scheduled for
Monday, May 14, 2:00 -5:00pm in JES A121A
Be there! No one will be admitted to
the examination after the first students have left the room.
Nor will arrivals after 2:15pm be admitted.
The final exam has 35 questions in Part
A, and 12 in Part B.
You will be asked to answer ALL questions in Part A, and to attempt
TWO of the Part B questions.
ALL questions
have been taken from parts of Homeworks 3-6 and Quizzes 1-3.
In a few cases, minor changes of wording have been made. In a
few cases, questions combine previously used questions.
Part A
How
does the light gathering power of a telescope depend on the diameter
of the primary lens or mirror? (LGP D2) |
| What
are the principal regions of the electromagnetic spectrum and
how are they ordered by frequency/wavelength? |
How
does a photon's energy depend on frequency and wavelength? (E
= hf= hc/ ) |
| What
is the Stefan-Boltzmann law? (E T4) (L = R2T4
for a star) |
| What
is Wien's law? (pk 1/T) (blue =
hot, red = cool) |
| How
are the spectral classes arranged as a temperature sequence? |
| What
is meant by 'the radial velocity' of a star? How is this related
to a star's total or space velocity? |
| Why
is the parallax of a star a crucial quantity? |
| What
is the relation between brightness, luminosity, and distance?
(B = L/d2) |
| What
is the mass-luminosity relation? (L M4 for main
sequence stars) |
| What
is the range of stellar luminosities? |
| How
do stellar lifetimes depend on stellar mass? (t 1/M3) |
| What
is the Chandrasekhar limit? To what does it apply? |
| What
are the spectral classes and their relation to color and luminosity? |
| What
will the Sun be at its death? |
| What
are the maximum masses of stellar remnants? |
| Why did Herschel
mistakenly place us at the center of the Milky Way? |
| What stars did
Shapley use to show we are far from the center? |
| What are Cepheid
variables and their period luminosity relation? |
| Why are they
useful for determining distances to quite distant galaxies? |
| What kind of
Galaxy are we? E, SB, or S? |
| What is meant
by a 'flat' rotation curve for a Galaxy? |
| What are the
distinguishing marks of the stellar populations I and II? |
| What is Hubble's
law and how may it be used to determine distances to galaxies?
(V = Hd) |
| What is the cosmological
principle? |
| What manufactured
the bulk of the helium in our galaxy? |
Part B
| What
do we mean by brightness and luminosity of an object? |
| Prove
how brightness, luminosity, and distance are related? (B = L/d2) |
| What
is Olber's paradox? And its implications? |
| What
is an atom? |
| Why
is the Rutherford-Bohr atom not really a miniature solar system? |
| How
do atoms of different elements differ? |
| What
is the H-R diagram? Do all samples of stars fill up the H-R diagram
in the same way? |
| What
is the mass-luminosity relation? Does it apply to all types of
stars? If not, why not? What does it imply about stellar lifetimes? |
| What
do mean when we say a star is in 'hydrostatic equilibrium'? |
| What
is the chain of reasoning that leads to the conclusion that main
sequence stars are generating energy in their cores? |
| How
long does it take this energy to appear at a star's surface? |
| How
do supernovae of Type Ia and II differ? |
| How
would you determine how frequently a galaxy experiences
a supernovae? |
| Do we see all supernovae in
our Galaxy? |
| What do we mean by the final
form attained by an evolving star? |
| What do we mean by the final
form attained by an evolving star? |
| What final forms are there?
(white dwarf, neutron star, black hole) |
| What are their vital statistics? |
| How are they detected? |
| What do we mean by the terms
'metal-poor' and 'metal-rich'? How are 'metals' produced in the
Galaxy? |
| What is the 21cm line of neutral
hydrogen? |
| How may this line be used
to measure the rotation of a spiral galaxy? |
| What is meant by a 'flat'
rotation curve? What is the principal deduction made from a flat
rotation curve? |
| How do we know there is dust
in the Milky Way? What is its 'nuisance' value? |
| What is Hubble's law and how
was it discovered? |
| Does the expansion of the
universe imply a special position for us? |
| What are Cepheid variables?
How are they used to establish distances to galaxies? Why has
the Hubble Space Telescope enabled this method to be used to
greater distances than before? |
|
Office Hours
I am occupied with important Departmental
business on Monday, May 7 through Thursday, May 10 at about 2pm.
At other times, regular hours. Feel free to call ahead.
Special Office Hours:
Wednesday May 9, 5 - 6:30 pm
in CPE 2.204.
Thurssday, May 10, 5 - 6:30 pm in CPE 2.204.
Sunday, May 13, 3 4:30pm in CPE 2.204.
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Syllabus
| Quiz 1 | Quiz
2 | Quiz 3 | Review
Sessions
|