ASTR 1102 final Exam 2025 | Updated Questions
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30
Choose matching term
star becomes a ___ ___ after fusion of The distance from Earth to the Moon
1 2
iron stops due to energy deficiency is about ___ times the size of the Earth
when excited, an electron moves to a ___ determines how long a star stays
3 4
higher energy level, it ___ light/energy on the main sequence
Don't know?
,The distance from Earth to 30
the Moon
is about ___ times the size
of the Earth
If the Earth were one foot 30 feet
in diameter, how
far away would the Moon
be?
Properly scaled to the 110
Earth globe, the
Sun would need to be ___
feet across.
If the Sun were the size of a grain of sand
a soccer ball, the Earth
would be best
represented by:
Two gas clouds floating in the high density cloud
space have the same
temperature. Both have
the same volume, but one
cloud is low mass (low
density) while the other is
very massive (high
density). Which one will
have
more self-gravity? That is,
in which cloud will the
force of gravity be able to
hold it together in spite
of the motion of the
atoms/molecules?
, You create two clouds of the cold cloud
gas floating in space. Both
have the same mass and
start out with the same
volume. However, one is
very hot while the other is
very cold. In which cloud
of gas is it more likely that
the force of gravity will be
able to win out over the
motion of the
atoms/molecules?
What initiates the collapse some small part of a cold cloud has just
of a gas cloud? enough density for gravity to win
As the cloud collapses, protostar
the core becomes dense
and
heats up, forming a:
The rotation in the cloud planets
causes some material to
form a disk around the
protostar, which could
eventually make:
near the end of the stellar winds
protostar phase, ___ ___
clear out the area around
the star
the protostar is officially a hydrogen, helium
main sequence star when
the gas is hot and dense
enough to fuse ___ into ___
In the Milky Way galaxy, OB associations, open clusters, globular clusters
there are
three main groups of stars:
and Correct Answers | Already Graded A+ |
verified Answers | Just Released
Save
Stretch your brain before your first study session
Learn 1 /7 Study with Learn
30
Choose matching term
star becomes a ___ ___ after fusion of The distance from Earth to the Moon
1 2
iron stops due to energy deficiency is about ___ times the size of the Earth
when excited, an electron moves to a ___ determines how long a star stays
3 4
higher energy level, it ___ light/energy on the main sequence
Don't know?
,The distance from Earth to 30
the Moon
is about ___ times the size
of the Earth
If the Earth were one foot 30 feet
in diameter, how
far away would the Moon
be?
Properly scaled to the 110
Earth globe, the
Sun would need to be ___
feet across.
If the Sun were the size of a grain of sand
a soccer ball, the Earth
would be best
represented by:
Two gas clouds floating in the high density cloud
space have the same
temperature. Both have
the same volume, but one
cloud is low mass (low
density) while the other is
very massive (high
density). Which one will
have
more self-gravity? That is,
in which cloud will the
force of gravity be able to
hold it together in spite
of the motion of the
atoms/molecules?
, You create two clouds of the cold cloud
gas floating in space. Both
have the same mass and
start out with the same
volume. However, one is
very hot while the other is
very cold. In which cloud
of gas is it more likely that
the force of gravity will be
able to win out over the
motion of the
atoms/molecules?
What initiates the collapse some small part of a cold cloud has just
of a gas cloud? enough density for gravity to win
As the cloud collapses, protostar
the core becomes dense
and
heats up, forming a:
The rotation in the cloud planets
causes some material to
form a disk around the
protostar, which could
eventually make:
near the end of the stellar winds
protostar phase, ___ ___
clear out the area around
the star
the protostar is officially a hydrogen, helium
main sequence star when
the gas is hot and dense
enough to fuse ___ into ___
In the Milky Way galaxy, OB associations, open clusters, globular clusters
there are
three main groups of stars:
