Exploring the Cosmos - Degree Exam 2011 - Galaxies and Large Scale Structure
1. Which of the following is a characteristic of Population I stars?
Population I stars often have a reddish colour.
Population I stars are 'metal rich'.
Population I stars are often found in globular clusters.
Population I stars are 'metal poor'.
2. Which of the following is a source of heavy elements?
Planetary nebulae.
Dark nebulae.
Reflection nebulae.
Emission nebulae.
3. Which of the following galaxy types belongs to the barred spiral galaxies?
S0
E4
Sb
SBa
4. Which of the following parts of our Galaxy can we not observe using visible light?
Open clusters
Spiral arms
Galactic centre
Globular clusters
5. Which of the following characteristics is true for elliptical Galaxies?
Lots of interstellar medium is present in elliptical galaxies.
Elliptical galaxies mainly feature Population I stars.
In elliptical galaxies there is very little active star formation.
Elliptical galaxies often rotate fast.
6. Which part of our galaxy features strong star formation?
Halo
Spiral arms
Central bulge
Globular clusters
7. An S0 galaxy can evolve into which of the following galaxy types?
Sc
SBb
Galaxies cannot evolve from one type into another.
Sa
8. Which of the following are not active galaxies?
Quasars
Infrared galaxies
Seyfert galaxies
Radio galaxies
9. Which of the following statements is not correct?
Our Galaxy has two disks.
Open clusters are mainly found in the disk.
The halo components move in nearly circular orbit around the centre of the galaxy.
The central bulge is thicker than the galactic disk.
10. Which of the following statements is correct?
The position of the solar system within our galaxy was first determined using the position of nearby O and B stars.
The position of the solar system within our galaxy was first determined using the 21 cm line.
The position of the solar system within our galaxy was first determined using the position of open clusters.
The position of the solar system within our galaxy was first determined using the position of globular clusters.
Submit Quiz