ASTRONOMY CHAPTER 6 EXAM
QUESTIONS AND ANSWERS 100% PASS
2026/2027
Suppose you view the Solar system from high above North Pole. Which of the following
statements about planetary orbits must be true? - ANS All the planets orbit counterclockwise
around the Sun.
The terrestrial planets in our Solar System are ____. - ANS Mercury, Venus, Earth, and Mars
The Jovian planets in our Solar System are _____. - ANS Jupiter, Saturn, Uranus, and Neptune
Which Jovian planet does not have rings? - ANS All of the Jovian planets have rings
Which moons are sometimes called the Galilean moons? - ANS The 4 largest moons of
Jupiter: Io, Europa, Ganymede, and Callisto
The Cassini Mission to Saturn consists of: - ANS an orbiter that orbits Saturn and a probe that
descended to the surface of Titan.
Which planet (besides Earth) has been visited by the largest number of robotic spacecraft? -
ANS Mars
@2026 ALLRIGHTS RESERVED 1
, Which of the following statements about Mars is NOT true? - ANS We could survive on Mars
without spacesuits, as long as we brought oxygen in scuba tanks
Which of the following statements about our Sun is NOT true? - ANS The Sun's diameter is
about 5 times that of Earth
When we say that Jovian planets contain significant amounts of hydrogen compounds, we mean
all of the following chemicals except _____. - ANS carbon dioxide
In essence, the nebular theory holds that _______. - ANS Our Solar System formed from the
collapse of an interstellar cloud of gas and dust.
According to modern science, what was the approximate chemical composition of the solar
nebula? - ANS 98 % hydrogen and helium
2% everything else
The terrestrial planets are made almost entirely of elements heavier than hydrogen and helium.
According to modern science, where did these elements come from? - ANS They were
produced by stars that lived and died before our solar system was born
According to our theory of solar system formation, what 3 major changes occurred in the solar
nebula as it shrank in size? - ANS 1. It got hotter.
2. Its rate of rotation increased
3. It flattened into a disk
Which of the following types of materials can condense into what we call ice at low
temperatures? - ANS Hydrogen compounds
@2026 ALLRIGHTS RESERVED 2
QUESTIONS AND ANSWERS 100% PASS
2026/2027
Suppose you view the Solar system from high above North Pole. Which of the following
statements about planetary orbits must be true? - ANS All the planets orbit counterclockwise
around the Sun.
The terrestrial planets in our Solar System are ____. - ANS Mercury, Venus, Earth, and Mars
The Jovian planets in our Solar System are _____. - ANS Jupiter, Saturn, Uranus, and Neptune
Which Jovian planet does not have rings? - ANS All of the Jovian planets have rings
Which moons are sometimes called the Galilean moons? - ANS The 4 largest moons of
Jupiter: Io, Europa, Ganymede, and Callisto
The Cassini Mission to Saturn consists of: - ANS an orbiter that orbits Saturn and a probe that
descended to the surface of Titan.
Which planet (besides Earth) has been visited by the largest number of robotic spacecraft? -
ANS Mars
@2026 ALLRIGHTS RESERVED 1
, Which of the following statements about Mars is NOT true? - ANS We could survive on Mars
without spacesuits, as long as we brought oxygen in scuba tanks
Which of the following statements about our Sun is NOT true? - ANS The Sun's diameter is
about 5 times that of Earth
When we say that Jovian planets contain significant amounts of hydrogen compounds, we mean
all of the following chemicals except _____. - ANS carbon dioxide
In essence, the nebular theory holds that _______. - ANS Our Solar System formed from the
collapse of an interstellar cloud of gas and dust.
According to modern science, what was the approximate chemical composition of the solar
nebula? - ANS 98 % hydrogen and helium
2% everything else
The terrestrial planets are made almost entirely of elements heavier than hydrogen and helium.
According to modern science, where did these elements come from? - ANS They were
produced by stars that lived and died before our solar system was born
According to our theory of solar system formation, what 3 major changes occurred in the solar
nebula as it shrank in size? - ANS 1. It got hotter.
2. Its rate of rotation increased
3. It flattened into a disk
Which of the following types of materials can condense into what we call ice at low
temperatures? - ANS Hydrogen compounds
@2026 ALLRIGHTS RESERVED 2
