The Sun and other Components of the Universe Review

How can you rearrange the words to match the diagram correctly in terms of sizes in space?

• Solar systems in the largest circle, then galaxies, followed by the universe in the smallest circle.

• Universe in the largest circle, then galaxies, followed by the solar systems in the smallest circle.

• Galaxies in the largest circle, then universe, followed by the solar systems in the smallest circle.

• The diagram is already correct.

Analyze this HR Diagram. Which group of stars belong to spectral class B and have the lowest luminosity?

• Giants

• Main Sequence

• White Dwarfs

• Supergiants

Tags

NGSS.HS-ESS1-3

Analyze this HR Diagram. Which group of stars belong to spectral class K and have the highest luminosity?

• Giants

• Main Sequence

• White Dwarfs

• Supergiants

Which of the following best describes the sun's position in the Milky Way galaxy?

• The sun is a giant yellow star located close to the galactic core.

• The sun is a yellow dwarf located on a spiral arm approximately 28,000 light-years from the galactic center.

• The sun is a dwarf star located at the end of one of the spiral arms.

• The sun is a medium yellow star located one light year from the galactic core.

Tags

NGSS.MS-ESS1-3

• Barnard's star is less bright than the sun, has a surface temperature below 3,800 K , and is red.

• Barnard's star is less bright than the sun, has a surface temperature above 3,800 K and is red.

• Barnard's Star is brighter than the sun, has a surface temperature below 5,300 K and is yellow.

• Barnard's Star is brighter than the sun, has a surface temperature above 5,300 K, and is yellow.

Which star is the coldest?

• Yellow Star
• Red Star
• Orange Star
• Blue Star

Which star represents our Sun?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-3

Which category is our Sun located in?

• White Dwarfs
• Supergiants
• Main Sequence
• Giants

Select the picture that represents a spiral galaxy.

• A
• B
• C
• D

Many of the stars in the night sky are much larger than our Sun, but appear much smaller.  The Sun appears larger than larger stars because the Sun -

• is a yellow star
• much closer
• much hotter
• much cooler