TEKS 8.8A Universe and HR Diagram 5

Front

Which celestial body is known for its intense pull of gravity?

Back

black hole

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

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

Back

Vega is hotter and brighter than Barnard's Star.

Front

A star that is several thousand times brighter than the sun with a temperature lower than 5,000^oC and is red.

Back

Betelgeuse

Front

A star that is several thousand times brighter than the sun with a temperature higher than 6,000^oC and is white.

Back

Deneb

Front

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

Back

Planets, Stars, Nebulae, Galaxies

Front

Zeta Eridani has a temperature of 40,000 what is its spectral class? Options: Spectral Class O, Spectral Class A, Spectral Class G, Spectral Class M

Back

Spectral Class O

Front

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

Back

Earth is a part of this galaxy.

Front

The Hertzsprung-Russell diagram is used for classifying stars based on the relationship between their brightness and their temperature and color. Regulus belongs in which of the following classifications? Super Giants, Giants, Main Sequence Stars, White Dwarfs

Back

Main Sequence Stars