Final Exam Review

What is the Big Bang Theory?

• The theory the the universe has always maintained a "steady-state", meaning that things are *not* spreading apart from one another
• The idea that the entire universe will end by collapsing into one big black hole
• The idea that all matter and energy in space spread everywhere at once, almost like a giant explosion
• I don't know

Which of these is evidence that the Big Bang happened?

• Due to redshift, we can see that galaxies are moving closer to each other
• Cosmic Background Radiation was detected in space
• Stars are dying

True or False: There is a black hole in the middle of the Milky Way.

• True
• False

The largest galaxies in the Local Group are the Milky Way and ___________________.

• Andromeda
• Laniakea
• Virgo
• Alpha Centauri

Which of these is the largest?

• The Milky Way
• The Local Group
• The Laniakea Supercluster
• Andromeda

Select the correct order, from smallest to largest

• The Local Group, The Milky Way, The Laniakea Supercluster, the Universe
• The Milky Way, the Universe, the Laniakea Supercluster, the Local Group
• The Milky Way, the Local Group, The Laniakea Supercluster, the Universe
• The Laniakea Supercluster, The Milky Way, The Local Group, the Universe

What is a star?

• a ball of gas (plasma) held together by gravity
• a bunch of stars held together by gravity
• the force that attracts all matter

Which type of galaxy is the Milky Way?

• Spiral
• Elliptical
• Irregular

Which is NOT an object found in our solar system:

• black hole
• star
• asteroid
• comet
• planet

Where are most asteroids found?

• between Earth and the Sun
• between Mars and Jupiter
• after Pluto
• near the moon