Unit 2: Astronomy Test

What theory places Earth at the center of the solar system?

• Copernican Theory
• Heliocentric Theory
• Geocentric Theory
• Newtonian Theory

Which planets are referred to as the Gas Giants?

• Mercury, Venus, Uranus, Neptune
• Mercury, Venus, Earth, Mars
• Jupiter, Saturn, Uranus, Neptune
• Jupiter, Saturn, Earth, Mars

Who is credited with proposing the Heliocentric Theory?

• Hubble
• Galileo
• Newton
• Copernicus

What is the main difference between Terrestrial Planets and Gas Giants?

• Terrestrial planets have rings, while Gas Giants have none.
• Terrestrial planets are larger and gaseous, while Gas Giants are smaller and rocky.
• Terrestrial planets are closer to the sun and rocky, while Gas Giants are farther and gaseous.
• Terrestrial planets are gaseous, while Gas Giants are rocky.

Where is the Asteroid Belt located?

• Between Saturn and Uranus
• Between Earth and Mars
• Between Mars and Jupiter
• Between Jupiter and Saturn

What is the Kuiper Belt?

• A group of stars in a galaxy
• A region beyond Neptune filled with leftover asteroids and dwarf planets
• A spherical region of comets surrounding the solar system
• An asteroid belt between Earth and Mars

What is a meteoroid called when it strikes Earth’s atmosphere and is seen as a flash of light?

• Asteroid
• Meteorite
• Meteor
• Comet

What is the name given to a galaxy that does not have a regular shape?

• Spiral Galaxy
• Round Galaxy
• Elliptical Galaxy
• Irregular Galaxy

What is the Big Bang Theory?

• The theory that stars form in pairs
• The theory that the universe will eventually collapse back into a single point
• The theory that the universe originated in a huge explosion that released all matter and energy
• The theory that galaxies are stationary and do not move

Who discovered that the universe was expanding beyond our own galaxy?

• Nicolaus Copernicus
• Isaac Newton
• Edwin Hubble
• Galileo