Astronomy 101 Exam Unc questions and
Verified Answers
ganymede - ANSWER moon of jupiter, magnetic field, largest moon, orbits jupiter in 7 days
io - ANSWER moon of jupiter, highest density and least amount of water, over 400
active volcanoes
europa - ANSWER moon of jupiter, atmosphere of mostly oxygen, smoothest surface
io - ANSWER most active geologic structure
europa - ANSWER geologic interaction between surface and ocean
ganymede - ANSWER probably formed a plain with concentric circles because of
geologic activity
callisto - ANSWER no signs of geologic activity ever occurring
geologic activity - ANSWER this on moons is caused by tidal heating, composition, and
rotational shearing from a wobbly rotation axis
europa - ANSWER galilean satellite with the most water
equinox and cassini - ANSWER the two space missions that have helped astronomers study the
surface of titan
titan - ANSWER methane cycle occurs here - methane exists as liquid so it forms clouds
and then rains methane
, volcanic activity - ANSWER Titan's surface contains _________ __________ because methane is
broken down by sunlight, scientists believe there is another source that replenishes what is lost
- this theory has yet to be confirmed
enceladus - ANSWER moon that has ice erupting and traveling over 800 mph to make
up saturn's outer E-ring. it's also the most reflective object in the solar system
enceladus - ANSWER moon that shows evidence for sub-surface water as evidenced by
gravity measurements
mimas - ANSWER one of saturn's moons, smallest astronomical body that is known to be
rounded in shape because of self-gravitation
iapetus - ANSWER one of saturn's moons and largest body in solar system known to not be
in hydrostatic equilibrium. also has 2 tone color
miranda - ANSWER smallest of saturn's moons with extreme weather because its orbit is
perpendicular to the ecliptic
circumplanetary disk - ANSWER a ring of accreting gas and solid debris that forms the
typical tiny moons of the jovian planets
comet tail - ANSWER streams of dust and gas released from a huge, extremely
tenuous atmosphere and points away from the sun
cometary nuclei - ANSWER consists mostly of ice and dust coated with dark organic material
with the ice composed mainly of frozen water. may have a small rocky core
short period - ANSWER comet that takes less than 200 years to complete an orbit around the
sun and originate from the kuiper belt
Verified Answers
ganymede - ANSWER moon of jupiter, magnetic field, largest moon, orbits jupiter in 7 days
io - ANSWER moon of jupiter, highest density and least amount of water, over 400
active volcanoes
europa - ANSWER moon of jupiter, atmosphere of mostly oxygen, smoothest surface
io - ANSWER most active geologic structure
europa - ANSWER geologic interaction between surface and ocean
ganymede - ANSWER probably formed a plain with concentric circles because of
geologic activity
callisto - ANSWER no signs of geologic activity ever occurring
geologic activity - ANSWER this on moons is caused by tidal heating, composition, and
rotational shearing from a wobbly rotation axis
europa - ANSWER galilean satellite with the most water
equinox and cassini - ANSWER the two space missions that have helped astronomers study the
surface of titan
titan - ANSWER methane cycle occurs here - methane exists as liquid so it forms clouds
and then rains methane
, volcanic activity - ANSWER Titan's surface contains _________ __________ because methane is
broken down by sunlight, scientists believe there is another source that replenishes what is lost
- this theory has yet to be confirmed
enceladus - ANSWER moon that has ice erupting and traveling over 800 mph to make
up saturn's outer E-ring. it's also the most reflective object in the solar system
enceladus - ANSWER moon that shows evidence for sub-surface water as evidenced by
gravity measurements
mimas - ANSWER one of saturn's moons, smallest astronomical body that is known to be
rounded in shape because of self-gravitation
iapetus - ANSWER one of saturn's moons and largest body in solar system known to not be
in hydrostatic equilibrium. also has 2 tone color
miranda - ANSWER smallest of saturn's moons with extreme weather because its orbit is
perpendicular to the ecliptic
circumplanetary disk - ANSWER a ring of accreting gas and solid debris that forms the
typical tiny moons of the jovian planets
comet tail - ANSWER streams of dust and gas released from a huge, extremely
tenuous atmosphere and points away from the sun
cometary nuclei - ANSWER consists mostly of ice and dust coated with dark organic material
with the ice composed mainly of frozen water. may have a small rocky core
short period - ANSWER comet that takes less than 200 years to complete an orbit around the
sun and originate from the kuiper belt
