Astronomy Final Exam Review

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

Tags

NGSS.MS-ESS1-2

Before the 17th century, the universe was thought to have how many bodies?

• 11

• 3

• 5

• 8

Which of the following was NOT thought to be a body within the universe during the 17th century?

• The Sun

• Mercury

• Pluto

• Earth

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 solar nebula was most likely a gigantic cloud of dust and gas that was created:

• In the 17th century

• Several years after the Big Bang

• During the Big Bang

• Before the Big Bang

Tags

NGSS.HS-ESS1-2

While no one knows why, astronomers do now know that the solar nebula has ___________.

• Gained gravity

• Decreased in size

• Increased in size

• Collapsed

Tags

NGSS.MS-ESS1-2

Planetesimals are made from:

• Rock

• Gas

• Stars

• Clouds

The distance from the Earth to the Sun is:

• 15 AUs

• 150,000,000 AUs

• 1 AU

• Unable to be measured

Tags

NGSS.MS-ESS1-3

Which of the following BEST explains why life on Mercury is most likely impossible?

• The planet is filled with too much volcanic activity.

• Over 85 percent of the planet is covered in flowing lava.

• There are extreme temperature variations, ranging from excessive heat to extreme cold.

• The temperatures are too cold.

Why does Mercury lack seasons?

• The axis of rotation is almost completely horizontal.

• The axis of rotation is almost completely vertical.

• The distance from the Sun makes seasons impossible.

• The planet’s seasons have never been studied, so this question remains unknown.