ASTRONOMY 1010 FINAL EXAM GSU
CORRECT QUESTIONS &
ANSWERS(RATED A)
you are in tuscon, arizona, at 32 degrees north latitude & 111 degrees west longitude.
What is the altitude of the North Star? - ANSWER C. 32 degrees above the horizon
The Sun's apparent annual motion around the ecliptic, at a rate of 1 degree per day
against the stars, is caused by what actual motion of the Earth? - ANSWER A.
Revolution around the Sun
in principle, you could learn the circumference of the Earth, by measuring how far... -
ANSWER B. you would have to walk to have the North Star one degree higher in the
sky
suppose an inferior planet orbits the Sun in 8 months, while Earth, requires 12 months.
How often does the inferior planet "gain a lap" on us? (time between inferior
conjunctions) - ANSWER B. 24 months
galileo saw that the disk of Venus changed size and phase. What would he have
observed for venus just before or after venus passed between us and the Sun? -
ANSWER C. a relatively larger diameter disk in a crescent phase
what is the average distance from the Sun of an object which takes 3 years to complete
one orbit? - ANSWER C. slightly more than 2 AU
newton discovered the force on a planet that was required to explain its orbital motion.
What was the direction of this force? - ANSWER B. inward, pointed towards the Sun.
which of these has the longest wavelength? - ANSWER D. infrared radiation from your
classmates
the sun's thermal energy output peaks in the visible part of the spectrum. compared to
this, what would describe the thermal radiation from a cooler star? - ANSWER D. less
total energy with a peak in the infrared
in hydrogen, an electron changing fro the first to the second orbital energy level would
account for what spectral line? - ANSWER B. an absorption at an ultraviolet wavelength
a 10-inch aperture telescope would be a large telescope size for amateurs. how many
times more light is gathered by the Palomar 200-in telescope? - ANSWER D. 400
CORRECT QUESTIONS &
ANSWERS(RATED A)
you are in tuscon, arizona, at 32 degrees north latitude & 111 degrees west longitude.
What is the altitude of the North Star? - ANSWER C. 32 degrees above the horizon
The Sun's apparent annual motion around the ecliptic, at a rate of 1 degree per day
against the stars, is caused by what actual motion of the Earth? - ANSWER A.
Revolution around the Sun
in principle, you could learn the circumference of the Earth, by measuring how far... -
ANSWER B. you would have to walk to have the North Star one degree higher in the
sky
suppose an inferior planet orbits the Sun in 8 months, while Earth, requires 12 months.
How often does the inferior planet "gain a lap" on us? (time between inferior
conjunctions) - ANSWER B. 24 months
galileo saw that the disk of Venus changed size and phase. What would he have
observed for venus just before or after venus passed between us and the Sun? -
ANSWER C. a relatively larger diameter disk in a crescent phase
what is the average distance from the Sun of an object which takes 3 years to complete
one orbit? - ANSWER C. slightly more than 2 AU
newton discovered the force on a planet that was required to explain its orbital motion.
What was the direction of this force? - ANSWER B. inward, pointed towards the Sun.
which of these has the longest wavelength? - ANSWER D. infrared radiation from your
classmates
the sun's thermal energy output peaks in the visible part of the spectrum. compared to
this, what would describe the thermal radiation from a cooler star? - ANSWER D. less
total energy with a peak in the infrared
in hydrogen, an electron changing fro the first to the second orbital energy level would
account for what spectral line? - ANSWER B. an absorption at an ultraviolet wavelength
a 10-inch aperture telescope would be a large telescope size for amateurs. how many
times more light is gathered by the Palomar 200-in telescope? - ANSWER D. 400
