Astronomy 207 Midterm 4 ~ UofC Exam Newest
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Terms in this set (46)
5) Why do asteroids and comets A) Asteroids formed inside the frost line, while
differ in composition? comets formed outside.
A) Asteroids formed inside the frost
line, while comets formed outside.
B) Asteroids and comets formed at
different times.
C) Comets formed from the jovian
nebula, while asteroids did not.
D) Comets are much larger than
asteroids.
E) Asteroids are much larger than
comets.
,Why aren't small asteroids spherical A) The strength of gravity on small asteroids is
in shape? less than the strength of the rock.
A) The strength of gravity on small
asteroids is less than the strength of
the rock.
B) Small asteroids have odd shapes
because they were all chipped off
larger objects.
C) Large asteroids were once
molten and therefore became
spherical, but small asteroids were
never molten.
D) Large asteroids became
spherical because many small
collisions chipped off pieces until
only a sphere was left; this did not
occur with small asteroids.
Where are the Trojan asteroids B) along Jupiter's orbit, 60° ahead of and behind
located? Jupiter
A) surrounding Jupiter
B) along Jupiter's orbit, 60° ahead
of and behind Jupiter
C) in the center of the asteroid belt
D) on orbits that cross Earth's orbit
E) on orbits that cross Mars's orbit
, How do we know that there are e) We notice gaps on graphs showing the
large gaps in the average distances distribution of asteroids with different orbital
of asteroids from the Sun (within the periods.
asteroid belt)?
a) We can see the gaps through
telescopes.
b)We can identify the gaps by
looking for stellar occultations in
which an asteroid passed in front of
a star as seen from Earth.
c) We have not actually detected
any gaps, but theory says they must
exist.
d) We know the gaps must be
present to explain how our
spacecraft have successfully
navigated the asteroid belt without
suffering collisions.
e) We notice gaps on graphs
showing the distribution of
asteroids with different orbital
periods.
The number of comets in the Oort D) a trillion.
cloud is probably about
A) a thousand.
B) a million.
C) a billion.
D) a trillion.
E) a quintillion.
2026 Complete Questions | With 100% Correct
Answers graded A+ Guaranteed Success!!
Save
Terms in this set (46)
5) Why do asteroids and comets A) Asteroids formed inside the frost line, while
differ in composition? comets formed outside.
A) Asteroids formed inside the frost
line, while comets formed outside.
B) Asteroids and comets formed at
different times.
C) Comets formed from the jovian
nebula, while asteroids did not.
D) Comets are much larger than
asteroids.
E) Asteroids are much larger than
comets.
,Why aren't small asteroids spherical A) The strength of gravity on small asteroids is
in shape? less than the strength of the rock.
A) The strength of gravity on small
asteroids is less than the strength of
the rock.
B) Small asteroids have odd shapes
because they were all chipped off
larger objects.
C) Large asteroids were once
molten and therefore became
spherical, but small asteroids were
never molten.
D) Large asteroids became
spherical because many small
collisions chipped off pieces until
only a sphere was left; this did not
occur with small asteroids.
Where are the Trojan asteroids B) along Jupiter's orbit, 60° ahead of and behind
located? Jupiter
A) surrounding Jupiter
B) along Jupiter's orbit, 60° ahead
of and behind Jupiter
C) in the center of the asteroid belt
D) on orbits that cross Earth's orbit
E) on orbits that cross Mars's orbit
, How do we know that there are e) We notice gaps on graphs showing the
large gaps in the average distances distribution of asteroids with different orbital
of asteroids from the Sun (within the periods.
asteroid belt)?
a) We can see the gaps through
telescopes.
b)We can identify the gaps by
looking for stellar occultations in
which an asteroid passed in front of
a star as seen from Earth.
c) We have not actually detected
any gaps, but theory says they must
exist.
d) We know the gaps must be
present to explain how our
spacecraft have successfully
navigated the asteroid belt without
suffering collisions.
e) We notice gaps on graphs
showing the distribution of
asteroids with different orbital
periods.
The number of comets in the Oort D) a trillion.
cloud is probably about
A) a thousand.
B) a million.
C) a billion.
D) a trillion.
E) a quintillion.
