Stars Unit Review

To an observer on Earth, the Sun appears brighter than the star Rigel because the Sun is

• hotter than Rigel

• more luminous than Rigel

• closer than Rigel

• larger than Rigel

Light and other forms of electromagnetic radiation are given off by stars using energy released during

• nuclear fusion

• conduction

• convection

• radioactive decay

Tags

NGSS.HS-ESS1-1

The star Algol is estimated to have approximately the same luminosity as the star Aldebaran approximately the same temperature as the Rigel. Algol is best classified as a

• main sequence star

• red giant star

• white dwarf star

• red dwarf star

Tags

NGSS.HS-ESS1-3

Which statement describes the general relationship between the temperature and the luminosity of main sequence stars?

• As temperature decreases, luminosity increases.

• As temperature decreases, luminosity remains the same

• As temperature increases, luminosity increases.

• As temperature increases, luminosity remains the same.

Which star is most similar in luminosity to Proxima Centauri, a red dwarf star?

• Procyon B

• Betelgeuse

• Alpha Centauri

• Polaris

The reaction below represents an energy-producing process. The reaction represents how energy is produced

• in the Sun by fusion

• when water condenses in Earth’s atmosphere

• from the movement of crustal plates

• during nuclear decay

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Compared with our Sun, the star Betelgeuse is

• smaller, hotter, and less luminous

• smaller, cooler, and more luminous

• larger, hotter, and less luminous

• larger, cooler, and more luminous

Which list shows stars in order of increasing temperature?

• Barnard’s Star, Polaris, Sirius, Rigel

• Aldebaran, the Sun, Rigel, Procyon B

• Rigel, Polaris, Aldebaran, Barnard’s Star

• Procyon B, Alpha Centauri, Polaris, Betelgeuse

Tags

NGSS.HS-ESS1-3

According to the diagram, a star like Earth’s Sun will eventually

• explode in a supernova

• become a black hole

• change into a white dwarf

• become a neutron star

Tags

NGSS.HS-ESS1-1

According to the diagram, the life-cycle path followed by a star is determined by the star’s initial

• mass

• luminosity

• temperature

• color