Astronomy 101 Exam 2 questions and Verified
Answers
Which of the following are terrestrial planets?
a) only earth
b) earth, moon, and venus
c) mercury, venus, earth, and mars
d) mercury, venus, mars, moon, earth, and pluto
e) mercury, venus, earth, moon, mars, and ceres - ANSWER c) mercury, venus, earth, and mars
What causes a meteor shower?
a) A comet and an asteroid collide.
b) Earth runs into a stray swarm of asteroids.
c) Earth runs into the debris of an old comet littering its orbit.
d) Meteorites are ejected from the Moon.
e) Debris from a supernova enters Earth's atmosphere - ANSWER c) Earth runs into the debris of
an old comet littering its orbit.
The terrestrial (inner) planets are characterized by
a) low density
b) rapid rotation
c) large size
d) rocky composition - ANSWER d) rocky composition
Most asteroids are found
,a) beyond the orbit of Neptune.
b) between Earth and the Sun.
c) between Mars and Jupiter.
d) in the orbit of Jupiter, but 60 degrees ahead or behind it.
e) orbiting the Jovian planets in captured,retrograde orbits. - ANSWER c) between Mars and
Jupiter
The condensation sequence theory explains why
a) our planet Earth has water and rain.
b) stars are more likely to form large planets orbiting very near.
c) terrestrial planets are different from jovian planets.
d) the Moon formed near to Earth.
e) Pluto has such a circular orbit - ANSWER c) terrestrial planets are different from jovian
planets
So few extrasolar planets the size of Earth have been seen with current techniques because
a) small planets probably don't exist.
b) the large planets nearby have swept them up.
c) Earth-like planets take time to form.
d) large planets orbiting near to their stars are more easily detected.
e) small planets can only be seen if they cross in front of their star - ANSWER d) large planets
orbiting near to their stars are more easily detected
What is the most abundant gas in Earth's atmosphere?
, a) oxygen
b) hydrogen
c) nitrogen
d) carbon dioxide
e) argon - ANSWER c) nitrogen
Place the statements concerning lunar formation below in chronological
order from the time of formation.
I. coalesced from orbiting debris
II. cooling of interior
III. mare formed
IV. surface melting by heavy bombardment
a) IV, III, II, I
b) III, II, IV, I
c) I, IV, III, II
d) II, III, IV, I - ANSWER c) I, IV, III, II
Without the greenhouse effect in our atmosphere
a) we would not have to worry about ecological problems.
b) the Earth's oceans would be frozen.
c) the amount of nitrogen & oxygen would be much less.
d) the icecaps would have melted.
e) global warming would still occur - ANSWER b) the Earth's oceans would be frozen
The principal greenhouse gasses in our present atmosphere are
Answers
Which of the following are terrestrial planets?
a) only earth
b) earth, moon, and venus
c) mercury, venus, earth, and mars
d) mercury, venus, mars, moon, earth, and pluto
e) mercury, venus, earth, moon, mars, and ceres - ANSWER c) mercury, venus, earth, and mars
What causes a meteor shower?
a) A comet and an asteroid collide.
b) Earth runs into a stray swarm of asteroids.
c) Earth runs into the debris of an old comet littering its orbit.
d) Meteorites are ejected from the Moon.
e) Debris from a supernova enters Earth's atmosphere - ANSWER c) Earth runs into the debris of
an old comet littering its orbit.
The terrestrial (inner) planets are characterized by
a) low density
b) rapid rotation
c) large size
d) rocky composition - ANSWER d) rocky composition
Most asteroids are found
,a) beyond the orbit of Neptune.
b) between Earth and the Sun.
c) between Mars and Jupiter.
d) in the orbit of Jupiter, but 60 degrees ahead or behind it.
e) orbiting the Jovian planets in captured,retrograde orbits. - ANSWER c) between Mars and
Jupiter
The condensation sequence theory explains why
a) our planet Earth has water and rain.
b) stars are more likely to form large planets orbiting very near.
c) terrestrial planets are different from jovian planets.
d) the Moon formed near to Earth.
e) Pluto has such a circular orbit - ANSWER c) terrestrial planets are different from jovian
planets
So few extrasolar planets the size of Earth have been seen with current techniques because
a) small planets probably don't exist.
b) the large planets nearby have swept them up.
c) Earth-like planets take time to form.
d) large planets orbiting near to their stars are more easily detected.
e) small planets can only be seen if they cross in front of their star - ANSWER d) large planets
orbiting near to their stars are more easily detected
What is the most abundant gas in Earth's atmosphere?
, a) oxygen
b) hydrogen
c) nitrogen
d) carbon dioxide
e) argon - ANSWER c) nitrogen
Place the statements concerning lunar formation below in chronological
order from the time of formation.
I. coalesced from orbiting debris
II. cooling of interior
III. mare formed
IV. surface melting by heavy bombardment
a) IV, III, II, I
b) III, II, IV, I
c) I, IV, III, II
d) II, III, IV, I - ANSWER c) I, IV, III, II
Without the greenhouse effect in our atmosphere
a) we would not have to worry about ecological problems.
b) the Earth's oceans would be frozen.
c) the amount of nitrogen & oxygen would be much less.
d) the icecaps would have melted.
e) global warming would still occur - ANSWER b) the Earth's oceans would be frozen
The principal greenhouse gasses in our present atmosphere are
