Astronomy Questions...?

D

Dan

New member
I finished my Astronomy test, I want to just double check my answers.

1) How massive are the largest known galaxies?
A) a hundred million solar masses
B) hundreds of trillions of solar masses
C) a few billion solar masses
D) a trillion solar masses
E) a few million solar masses
I put B

2) The latest studies from ________ led to the discovery of "dark energy."
A) the gravitational lensing by MACHOs
B) the COBE microwave ripples
C) Type II supernovae in the Large Magellanic Cloud
D) Type I supernovae at very large red shifts
E) Cepheid variables in the Virgo Cluster
I put D

4) The 3 K background radiation represents
A) the time of decoupling.
B) the Big Bang itself.
C) the formation of the first galaxies.
D) formation of the first quasar.
E) the outer edge of the Universe.
I put B

5) The best answer to both the flatness and horizon problems is
A) the GUT theory.
B) the Steady State Theory.
C) the inflationary epoch.
D) decoupling.
E) dark energy
I put E

6) The simplest life forms appeared on Earth when it was how old?
A) five million years
B) one billion years
C) 2.5 billion years
D) 3.5 billion years
E) 4.5 billion years
I put B

7) Which Jovian moon has gotten the most attention from exobiologists?
A) Triton
B) Ganymede
C) Europa
D) Urbriel
E) Miranda
I put C
 
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