Main Sequence Stars

Stars on the upper left end of the main sequence differ from those on the lower right end in what way?

• Stars on the upper left end are less massive.

• Stars on the upper left end are more massive.

• Stars on the upper left end tend to be red in color.

• Stars on the upper left end are near the end of their life cycle.

For most stars, what does a higher temperature tend to go with?

• A lower luminosity

• A higher luminosity

• A red color

• None of the above

Which category is our Sun located in?

• White Dwarfs

• Supergiants

• Main Sequence

• Giants

Tags

NGSS.HS-ESS1-1

Which spectral class does our star, the sun, belong to?

• M

• K

• G

• F

As you move from the bottom to the top of the H R diagram the __________ changes.

• Temperature

• Luminosity or Brightness

Compared to the rest of the stars, our sun is considered...

• Extremely Large and Cold

• Small with a medium temperature

• Medium size with medium temperature

Tags

NGSS.MS-ESS1-3

Our sun is currently a ______________________ then will become a _________________________ and lastly a _______________________.

• main sequence, red giant, super giant

• main sequence, red dwarf, white dwarf

• main sequence, red giant, white dwarf

• main sequence, red giant, red dwarf

Tags

NGSS.HS-ESS1-1

What is found on the x axis of an H-R diagram?

• Luminosity
  (or brightness)

• Temperature

• Star Size

• Distance

What determines the color of a star? 

• It's size

• It's temperature

• It's composition

• They are all the same color 

Use the Hertzsprung Russell Diagram to answer the following question.  Which of these observations of Epsilon Eridani is most likely accurate? 

• Epsilon Eridani is less bright than the Sun, has a surface temperature below 5,000 ^oC, and is red orange.

• Epsilon Eridani is brighter than the Sun, has a surface temperature below 5,000 ^oC, and is red orange.

• Epsilon Eridani is brighter than the Sun, has a surface temperature below 6,000 ^oC, and is red.

• Epsilon Eridani is less bright than the Sun, has a surface temperature below 5,000 ^oC, and is yellow