Astronomy - Final Exam

.

A planetary system is a system of objects in space that orbit which of the following?

• A star

• The Sun

• The Moon

• Non-terrestrial planets

Choose the word that BEST completes the following sentence.

The invention of __________________ made it easier to see that there were actually more bodies within the universe than was originally thought.

• The telescope

• Space crafts

• Binoculars

• Airplanes

The distance from the Earth to the Sun is:

• 15 AUs

• 150,000,000 AUs

• 1 AU

• Unable to be measured

The MOST important factor in determining the development of life on Earth is:

• Temperature

• Water

• Distance from the Sun

• Gravity

The earliest stage of a star’s life before it begins to undergo fusion is known as:

• Retrograde

• Planetesimal

• Protostar

• Solar nebula

How many steps are there in the formation of a Solar System?

• Eight

• Six

• Ten

• Four

Like Earth, Mercury has one moon.

• True

• False

Although Venus is like Earth, it is too cold to maintain life.

• True

• False

Which of the following describes what would have happened to Jupiter if it were 80 times larger?

• It would be unable to rotate.

• It would become a sun.

• It would become a star.

• It would become a supernova.

Because of Saturn’s rings, what are we unable to observe from Earth?

• Its bright blue color

• Its solid core

• Its well defined shaped

• Its lack of moons