Cosmology quiz - can you answer these?

Rex Barker

New member
These are some questions I had on a final, some even I missed, must have been the way they were worded(lol). Anyway, see how you can do.

True or False:

1.In any star cluster, stars with lower masses greatly outnumber those with higher masses.

2.A protoglactic cloud with slow star formation is more likely to form a spiral galaxy than an elliptical galaxy.

3.More massive white dwarfs are smaller than less massive white dwarfs.

4. Approximately 90% of the Milky Way is located in the halo of the galaxy in the form of dark matter.

5.The most massive stars generate energy at the end of their lives by fusing iron in their cores.

6.Brown dwarfs, white dwarfs, and neutron stars are kept from collapsing by degeneracy pressure.

7.The visable parts of galaxies contribute about 1/10 of the critical density of the universe.

Just like in school, if you don't answer a question, you get it wrong, so think hard and guess if you have to.
 
The questions are simple, but the wording is really bad. For example, (5) seems to be correct at first glance: massive stars DO fuse iron; however, no energy is generated by that fusion and it actually consumes available energy, triggering the collapse and explosion which we observe as a supernova.

Most of these questions do not appear to have anything to do with cosmology, though.
 
Back
Top