Astronomy Test 1

Rings are a characteristic of

• small planets only

• large planets only

• both large and small planets

• neither large nor small planets

Which theory do scientists believe most likely explains the creation of the universe?

• Radiation Theory

• Butterfly Effect Theory

• Big Bang Theory

• Red Shift Theory

Over time, scientists have changed their model of our solar system. It has transitioned from

• an Earth centered to a Sun centered model

• an Sun centered to a Earth centered model

• an Sun centered to a Moon centered model

• an Moon centered to a Earth centered model

Many years ago, people believed that the Earth was the center of the solar system because from Earth, it looks as if the stars and the Sun

• are much smaller than the Earth

• are controlled by the Earth

• revolve around the Earth

• move more quickly than the Earth

Our solar system is in the Milky Way galaxy. What shape is this galaxy?

• rectangular

• oval

• triangular

• spiral

If the four components were ranked from smallest to largest, what would the order be?

• solar system, galaxy, planet, universe

• universe, galaxy, solar system, planet

• planet, solar system, galaxy, universe

• planet, galaxy, solar system, universe

Scientists believe that the universe is expanding. Which theory about the creation of the universe best supports this belief?

• Big Bang theory

• Creation theory

• Protouniverse theory

• Bouncing Universe theory

Almost everything in the universe orbits around a central object. The planets orbit around the Sun and moons orbit around planets. The force most responsible for these orbits is

• inertia

• gravity

• strong force

• electromagnetic

What is the name of the galaxy where Earth is located?

• Milky Way Galaxy

• Andromeda Galaxy

• Comet Galaxy

• Sun Galaxy

Which planet will take the longest time to orbit the Sun?

• Jupiter

• Mars

• Mercury

• Uranus