The Solar System

What type of celestial object is the Sun?

• Galxaxy

• Star

• Milky Way

• Comet

How many (known) planets are there in the solar system?

• 4

• 6

• 8

• 9

What type of planet is Mars?

• Terrestrial

• Dwarf

• Gas Giant

• Ice Giant

What type of planet is Neptune?

• Terrestrial

• Dwarf

• Gas giant

• Ice giant

What type of planet is Pluto?

• Terrestrial

• Dwarf

• Gas giant

• Ice giant

The largest body in the asteroid belt has been classified as a dwarf planet. What is its name?

• Sedna

• Makemake

• Quaoar

• Ceres

What objects often occupy an orbit between those of Mars and Jupiter?

• Asteroids

• Comets

• Moons

• Satellites

Which of the following best describes the composition of the asteroids?

• Water ice

• Hydrogen and helium

• Methane ice

• Rock and metal

Which of the following best describes the composition of comets?

• Volatile ices

• Metal

• Hydrogen and helium

• Silicate rock

Which of the following best describes the shape of most stable gravitational orbits?

• Circle

• Spiral

• Ellipse

• Figure-of-eight