Which star has a cooler surface temperature between Spica and Mira?

• Spica and Mira have the same surface temperature

• You cannot tell by this HR diagram which star is cooler.

• Spica

• Mira

In the main sequence, as a star's temperature increases ...

• brightness increases

• brightness decreases

• brightness stays the same

• temperature begins to decrease

Which of the following is NOT a star group found on a HR diagram?

• White Dwarfs

• Main Sequence

• Supergiants

• Black Holes

Which star group contains the smallest stars?

• White dwarfs

• Giants

• Supergiants

• Main Sequence

Which of the following is true about Rigel?

• Rigel is very bright and very cool.

• Rigel is very dim and very hot.

• Rigel is very bright and very hot.

• Rigel is very dim and very cool.

Tags

NGSS.HS-ESS1-3

What color are stars that have the highest surface temperature?

• Red

• Orange

• Blue

• Yellow

What star group does Pollux belong to?

• Supergiants

• Giants

• Main Sequence

• White Dwarfs

Tags

NGSS.HS-ESS1-3

Check the stars that hotter than Betelgeuse.

• Mira

• Pollux

• Polaris

• Vegas

According to a HR diagram, moving from left to right, what happens to the surface temperature of a star?

• Stays the same

• Increases

• Decreases

On a HR diagram, where are the brightest stars found?

• At the bottom

• On the right side

• On the left side

• At the top