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Astronomy 1010 Final Exam GSU 2025
update|comprehensive questions and verified
answers (complete solutions) Exam|GRADE A+!!
Planetary ___ have common plane and direction, low eccentricity; -
(answers)orbits
___shows similar order; - (answers)Rotation
Moons have similar ___. - (answers)motions
Orbital spacing ___random. - (answers)not
Terrestrial and Jovian planets show ___ and composition - (answers)trends in size
The collapse of an interstellar cloud. As the cloud contracts, it rotates faster, and
the outer parts flatten into a disk. This can be observed happening elsewhere in
our Galaxy today. As disk cools, solid grains form; more volatile ices found only in
the outer part. Accretion of grains (sticky collisions) produce planets; -
(answers)The collapse of an interstellar cloud. As the cloud contracts, it rotates
faster, and the outer parts flatten into a disk. This can be observed happening
elsewhere in our Galaxy today. As disk cools, solid grains form; more volatile ices
found only in the outer part. Accretion of grains (sticky collisions) produce
planets;
Jovian planets grow even larger by attracting ___abundant gases. - (answers)cold
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Many extrasolar planets (orbiting other stars) have been found in the last decade
by ___ techniques. Most are "hot Jupiters" but this is probably a selection effect. -
(answers)Doppler or transit
Factors influencing the odds of life as we know it include the number of stars, the
fraction like the Sun, fraction not binary or multiple, fraction with planets, and the
number of nice planets per star. Harder to quantify factors: origin of life,
intelligence, and survival. - (answers)Factors influencing the odds of life as we
know it include the number of stars, the fraction like the Sun, fraction not binary
or multiple, fraction with planets, and the number of nice planets per star. Harder
to quantify factors: origin of life, intelligence, and survival.
There is ___ that would satisfy an astronomer that other civilizations have visited
us as "UFOs". - (answers)no evidence
___ would be faster and cheaper. - (answers)Radio signals
Most probable would be the detection of a greeting from a more advanced
civilization, or perhaps just picking up their radio noise. No results to date, but the
next few decades may give the answer. - (answers)Most probable would be the
detection of a greeting from a more advanced civilization, or perhaps just picking
up their radio noise. No results to date, but the next few decades may give the
answer.
Detecting message content would be much more difficult than just the raw
signal's existence, and require much more sensitivity than currently available. -
Astronomy 1010 Final Exam GSU 2025
update|comprehensive questions and verified
answers (complete solutions) Exam|GRADE A+!!
Planetary ___ have common plane and direction, low eccentricity; -
(answers)orbits
___shows similar order; - (answers)Rotation
Moons have similar ___. - (answers)motions
Orbital spacing ___random. - (answers)not
Terrestrial and Jovian planets show ___ and composition - (answers)trends in size
The collapse of an interstellar cloud. As the cloud contracts, it rotates faster, and
the outer parts flatten into a disk. This can be observed happening elsewhere in
our Galaxy today. As disk cools, solid grains form; more volatile ices found only in
the outer part. Accretion of grains (sticky collisions) produce planets; -
(answers)The collapse of an interstellar cloud. As the cloud contracts, it rotates
faster, and the outer parts flatten into a disk. This can be observed happening
elsewhere in our Galaxy today. As disk cools, solid grains form; more volatile ices
found only in the outer part. Accretion of grains (sticky collisions) produce
planets;
Jovian planets grow even larger by attracting ___abundant gases. - (answers)cold
, 2|Page
Many extrasolar planets (orbiting other stars) have been found in the last decade
by ___ techniques. Most are "hot Jupiters" but this is probably a selection effect. -
(answers)Doppler or transit
Factors influencing the odds of life as we know it include the number of stars, the
fraction like the Sun, fraction not binary or multiple, fraction with planets, and the
number of nice planets per star. Harder to quantify factors: origin of life,
intelligence, and survival. - (answers)Factors influencing the odds of life as we
know it include the number of stars, the fraction like the Sun, fraction not binary
or multiple, fraction with planets, and the number of nice planets per star. Harder
to quantify factors: origin of life, intelligence, and survival.
There is ___ that would satisfy an astronomer that other civilizations have visited
us as "UFOs". - (answers)no evidence
___ would be faster and cheaper. - (answers)Radio signals
Most probable would be the detection of a greeting from a more advanced
civilization, or perhaps just picking up their radio noise. No results to date, but the
next few decades may give the answer. - (answers)Most probable would be the
detection of a greeting from a more advanced civilization, or perhaps just picking
up their radio noise. No results to date, but the next few decades may give the
answer.
Detecting message content would be much more difficult than just the raw
signal's existence, and require much more sensitivity than currently available. -
