HR Diagram

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

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

Which of these stars is hottest?

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

Which star is the coldest?

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

Which category is our Sun located in?

• White Dwarfs
• Supergiants
• Main Sequence
• Giants

As a whole, Giants are considered hotter than White Dwarfs.

• True
• False

Look at the H-R diagram. Which star is
sort of cool, dim (not too much light), and red?

• Betelguse
• Sirius B
• Procyon B
• Barnard's star

Which star has the lowest temperature?

• A
• B
• C
• D

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

• M
• K
• G
• F

Tags

NGSS.HS-ESS1-1

How does the mass of a hot, bright main sequence star compare to a cool, faint main sequence star?

• They have more mass

• They have the same mass

• They have less mass

Someday the sun will leave the main sequence and become a red giant star. As a red giant, it will be fusing ___ in its core. It will also swell up, becoming larger in diameter. It also cools.

• helium into hydrogen

• hydrogen into helium

• helium into carbon

Tags

NGSS.HS-ESS1-1