Components of the Universe Test Review

What tool do scientist use to organize information about stars?

• telescope

• HR Diagram

• spectroscope

• HR Block

What star is closest to Earth?

• Alpha Centauri

• Betelgeuse

• Proxima Centauri

• Sun

On the HR Diagram, the brightness and temperature of all stars is compared to which star?

• Bernard's Star

• Sun

• Proxima Centauri

• Main Sequence

Our Sun is many _____ Earth than any other star.

• hundreds of times farther from

• hundreds of thousands of times farther from

• hundreds of thousands of times closer to

• billions of times closer to

Earth is found in the Milky Way Galaxy. What type of Galaxy is the Milky Way?

• elliptical

• striped

• irregular

• spiral

What property do stars with the same color have in common?

• shape

• surface temperature

• internal temperature

• chemical composition

Which correctly describes the size and temperature of our Sun?

• medium sized and average temp.

• large sized and average temp.

• small size and average temp.

• medium sized and cold temp.

Which correctly describes the life cycle of the Sun?

• red giant > supernova > black hole

• red giant > red supergiant > supernova > neutron star

• red giant > planetary nebula > white dwarf

• red super giant > supernova > white dwarf

What determines the life cycle of a star?

• color

• shape

• size

• mass

All stars begin their lives in a _____.

• nursery

• stellar hospital

• nebula

• back seat of a cab