ASTRO 5 MT SAC TEST QUESTIONS AND
ANSWERS
Terrestrial planters distance from Sun - ANSWER Closer to the sun, closer
then 3AU
Terrestrial sizes from smallest to biggest - ANSWER Moon, Mercury, Mars,
Venus, Earth
Do terrestrial planets have moons - ANSWER Little to no moons
Terrestrial planet density - ANSWER Greater then 3 g/cm3
Terrestrial planet composition - ANSWER Solid rocky, metal, with craters
Asteroid Belt distance from Sun - ANSWER 2.8 AU
Asteroid Belt composition - ANSWER rocky, metals, not round
When was the Asteroid Belt made - ANSWER Early Solar System didn't get to
become planets
Jovian planets distance from the Sun - ANSWER Greater then 3AU
Jovian planet density - ANSWER Less then or equal to 1 g/cm3
What are the Galilean satellites - ANSWER The 4 moons found by Galileo on
Jupiter
What are the 4 moons of Jupiter - ANSWER Ganymede, Calisto, Io, Europa
What are Ganymede and Calisto's composition - ANSWER icy ; low density
, What are Io and Europa's composition - ANSWER rocky with metals; high
density
Which planets have greater masses and why - ANSWER Jovian's because of
gas accretion
What is gas accretion - ANSWER
Why do all of the planets lie in nearly the same plane - ANSWER they were
made on the same disc
What is a meteor - ANSWER straight flash of light made from the dust of a
comet
Contrast meteor with meteorite - ANSWER meteor doesn't penetrate
atmosphere, meteorite is bigger
What is a meteorite - ANSWER debris from asteroid collisions
What are the 4 types of material found in the solar system - ANSWER gasses,
ices, metals, rocks
Where did hydrogen gases in our solar system come from - ANSWER The Big
Bang
Where do the elements heavier then helium come from - ANSWER Nuclear
fusion inside stars
Where do the elements heavier then iron come from - ANSWER Super nova
What is the heaviest element that a star makes - ANSWER iron
what is the heaviest element a super nova makes - ANSWER
In the solar nebula, when gas atoms or molecules turned into solid grains, this is
known as what - ANSWER condensation sequence
ANSWERS
Terrestrial planters distance from Sun - ANSWER Closer to the sun, closer
then 3AU
Terrestrial sizes from smallest to biggest - ANSWER Moon, Mercury, Mars,
Venus, Earth
Do terrestrial planets have moons - ANSWER Little to no moons
Terrestrial planet density - ANSWER Greater then 3 g/cm3
Terrestrial planet composition - ANSWER Solid rocky, metal, with craters
Asteroid Belt distance from Sun - ANSWER 2.8 AU
Asteroid Belt composition - ANSWER rocky, metals, not round
When was the Asteroid Belt made - ANSWER Early Solar System didn't get to
become planets
Jovian planets distance from the Sun - ANSWER Greater then 3AU
Jovian planet density - ANSWER Less then or equal to 1 g/cm3
What are the Galilean satellites - ANSWER The 4 moons found by Galileo on
Jupiter
What are the 4 moons of Jupiter - ANSWER Ganymede, Calisto, Io, Europa
What are Ganymede and Calisto's composition - ANSWER icy ; low density
, What are Io and Europa's composition - ANSWER rocky with metals; high
density
Which planets have greater masses and why - ANSWER Jovian's because of
gas accretion
What is gas accretion - ANSWER
Why do all of the planets lie in nearly the same plane - ANSWER they were
made on the same disc
What is a meteor - ANSWER straight flash of light made from the dust of a
comet
Contrast meteor with meteorite - ANSWER meteor doesn't penetrate
atmosphere, meteorite is bigger
What is a meteorite - ANSWER debris from asteroid collisions
What are the 4 types of material found in the solar system - ANSWER gasses,
ices, metals, rocks
Where did hydrogen gases in our solar system come from - ANSWER The Big
Bang
Where do the elements heavier then helium come from - ANSWER Nuclear
fusion inside stars
Where do the elements heavier then iron come from - ANSWER Super nova
What is the heaviest element that a star makes - ANSWER iron
what is the heaviest element a super nova makes - ANSWER
In the solar nebula, when gas atoms or molecules turned into solid grains, this is
known as what - ANSWER condensation sequence
