HR Diagram

Which of the following best describes a star?  A star is a celestial body ---

• composed of rock and metal with a very high density
• that is too big to be an asteroid, but too small to be a planet.
• that rotates on an axis and revolves around the Sun
• composed of gases that emit light due to nuclear reactions

Based on this diagram which type of stars would belong to spectral class M and have the lowest luminosity?

• Main Sequence Stars
• Giants
• Super Giants
• White Dwarfs

Use the Hertzsprung-Russell Diagram to answer the following question.  Betelgeuse is a _____

• Hot and Bright Star
• Cool and Bright Star
• Hot and Dim Star
• Cool and Dim Star

Use the Hertzsprung-Russell Diagram to answer the following question. Sirius B is a _____

• Hot and Bright Star
• Cool and Bright Star
• Hot and Dim Star
• Cool and Dim Star

What is the name of the largest stars?

• Protostars
• Supergiants
• Red Giants
• Dwarf Stars

Analyze this HR Diagram. Which group of stars is considered to have lower than average luminosity as well as a higher than average temperature?

• Giants
• Main Sequence
• White Dwarfs
• Super Giants

Which star has the lowest temperature?

• A
• B
• C
• D

Which star is considered a Main Sequence Star?

• A
• B
• C
• D

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

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

• Stars Get Larger
• Stars get Colder
• Stars get hotter

On the H-R diagram, the Sun is a _____.

• Main Sequence star
• Red Giant
• White Dwarf
• Blue Giant

Tags

NGSS.HS-ESS1-1