Test: Our Solar System

What do all inner planets have in common?

• They are rocky
• They are large
• They are long periods of revolution
• They have no moons

Which of the following is not a characteristic of the outer planets?

• They are large
• They have short periods of rotation
• They have short periods of revolution
• They are made of gas

Larger planets tend to:

• have a stronger gravity
• have a short period of rotation
• be made of gas
• All of the above

What force helped with the formation of the sun and planets?

• Electric force
• Magnetic force
• Gravity
• Buoyancy

Which of the following is NOT a characteristic of a planet?

• A planet orbits a star.
• A planet’s gravity is great enough so that its shape is round.
• A planet has cleared its orbital path of other celestial objects.
• A planet has at least one moon.

Which of the following is NOT a gas giant?

• Venus
• Jupiter
• Saturn
• Uranus

Which planet is closest to the sun?

• Mars
• Mercury
• Venus
• Earth

Which planet is often identified by its prominent ring structure?

• Venus
• Jupiter
• Saturn
• Neptune

Which planet(s) is/are known to harbor life? In other words, on which planet(s) can living things survive?

• Venus
• Earth
• Mars
• All of the above

Which of the following is the most massive object in the solar system?

• The sun
• Earth
• Mars
• Jupiter