Components of the Universe

Stars form in a large cloud of gas and dust called a

• cumulonimbus cloud

• nebula

• neutron star

• black hole

Which star is considered a Main Sequence Star?

• A
• B
• C
• D

What is the graph that shows the relations between a star's surface temperature and absolute magnitude?

• H-R Diagram
• Star Cluster Map
• Einstein's Diagram
• Newton's Chart of Stars

Which star has the lowest temperature?

• A
• B
• C
• D

What type of galaxy is this?

• Elliptical

• Irregular

• Spiral

• Milky Way

The five dots shown on the H-R diagram, each represents a star. Based on it's position, what can you infer about the star at position V?

• It is hot and bright

• It is cool and Bright

• It is hot and dim

• It is cool and dim

Space and all the matter and energy in it is...

• Universe
• Galaxy
• Solar System
• Ecosystem

What type of galaxy is this?

• Spiral
• Elliptical
• Irregular 
• Irrational

In the diagram given, what happens as we move to the left?

• Stars size increases

• Stars temperature decrease

• Stars temperature increases

• The luminosity decreases

Which star has the lowest luminosity?

• A
• B
• C
• D