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Contrast the speeds of sound and light in watching a flash of lightning, then listening
for the thunder to follow.
One of the requirements of the Scientific Method is that an experiment must be
________.
A supernova remnant, such as the Crab nebula, is heated by the ________.
The infinite, open universe has a geometry compared to the surface of a ________.
Smooth rolling plains, modest highlands and lowlands, and no water describes the
surface of ________.
If the density is less than critical, which fate of the universe awaits us?
What is the Tully-Fisher relation?
A black hole is an object whose escape velocity is equal to ________.
The distance to a star with a parallax angle of 0.2 arc seconds is ________.
Describe two ways of detecting extrasolar planets.
A star with an apparent magnitude of +2.3 and an absolute magnitude of +5.9 lies
________ than 10 parsecs away.
Why is Venus' rotation unusual?
Streaks of light made when small debris hits our atmosphere are called ________.
How can Betelgeuse be only half the Sun's surface temperature, yet about 10,000 times
more luminous than the hotter Sun?
The star's ________ plays the major role in determining its main sequence position and
luminosity.
Why are emission nebulae ideal places to go hunting for brown dwarfs?
Relate the Galaxy's spiral arms to the spiral-density wave theory.
Discuss the mass, temperature, color and size of an M3V star, compared to the Sun.
The F Ring around Saturn is maintained by ________.
Most of the mass of the Galaxy lies in the ________.
