The Universe

Front

Why can't people on Earth see the entire shape of the Milky Way?

Back

Earth is a part of this galaxy.

Front

Based on this diagram which type of stars would belong to spectral class M and have the lowest luminosity? Options: Main Sequence Stars, Giants, Super Giants, White Dwarfs

Back

Main Sequence Stars

Front

Based on this diagram which type of stars would belong to spectral class G and have the highest luminosity? Options: Main Sequence Stars, Giants, Super Giants, White Dwarfs

Back

Super Giants

Front

Based on this diagram which type of stars would belong to spectral class B and have the lowest luminosity? Options: Main Sequence Stars, Giants, Super Giants, White Dwarfs

Back

White Dwarfs

Front

How do the characteristics of Vega and Barnard's Star compare?

Back

Vega is hotter and brighter than Barnard's Star.

Front

How do the characteristics of Vega and Betelgeuse compare?

Back

Vega is hotter and less bright than Betelgeuse.

Front

How do the characteristics of Vega and Rigel compare?

Back

Vega is cooler and less bright than Rigel.

Front

Which of these correctly compares the masses of different objects in the universe? A moon has less mass than a star and more mass than the planet it orbits., A planet has less mass than a galaxy and more mass than the star it orbits., A galaxy has less mass than a moon and more mass than a planet., A star has less mass than a galaxy and more mass than a planet.

Back

A star has less mass than a galaxy and more mass than a planet.

Front

Which list places four components of the universe in the most likely order from smallest to largest? Options: Planets, Stars, Galaxies, Nebulae, Nebulae, Stars, Planets, Galaxies, Galaxies, Stars, Planets, Nebulae, Planets, Stars, Nebulae, Galaxies

Back

Planets, Stars, Nebulae, Galaxies

Front

Barnard's Star has a temperature of 2,800, what is its spectral class? Options: Spectral Class O, Spectral Class A, Spectral Class G, Spectral Class M

Back

Spectral Class M