ASTRO 7N EXAM 1 - COMPLETE QUESTIONS AND
DETAILED SOLUTIONS LATEST UPDATE THIS YEAR
JUST RELEASED
Question 1: What time is it for the little green figure on Earth if
Earth is rotating counterclockwise?
Answer:
6:00 am
Question 2: A mountain top is a good location for optical
telescopes because the site...
Answer:
is above much of the atmosphere
Question 3: What time is the waxing crescent moon directly
overhead
Answer:
3:00 pm
Question 4: The moon has about 1/100th the mass of Earth and
1/4th the radius. What is the surface gravity of the moon compared
to Earth?
Answer:
16/100
Question 5: An emission line is produced when
Answer:
an electron passes from a higher to a lower energy level
Question 6: Of the following types of radiation, which has the
highest frequency?
Answer:
,X-rays
Question 7: The spectrum of an oxygen lamp looks different than
the spectrum of a sodium lamp because:
Answer:
each atom has a unique set of electron orbits
Question 8: Which statement about the rotation of the inner planets
is true?
Answer:
Venus rotates in the opposite direction from the three others
Question 9: The sun formed..
Answer:
at the center of a spinning disk made of gas and dust
Question 10: Could there be a place where it would never be day on
Mercury?
Answer:
There could be a crater that is always in shadow since there is water ice
that survives
Question 11: Which object is shown in this image (big ass moon
jawn)
Answer:
Ganymede
Question 12: Which of the following is NOT a characteristic of
jovian planets?
Answer:
They have a higher density than terrestrial planets
Question 13: How do most craters on moons form
,Answer:
impact of asteroids
Question 14: Could astronauts survive on the surface of Titan
without a space suit; maybe just an oxygen mask or something?
Answer:
No, it is far too cold
Question 15: What is ozone?
Answer:
Three oxygen atoms bonded together into a single molecule (O3)
Question 16: Volcanoes on Venus
Answer:
produce very large lava flows that cover at least 85% of the planet's
surface
Question 17: What was Kepler's first law?
Answer:
Planets revolve around the sun in elliptical orbits with Sun at one focus
of the ellipse.
Question 18: Which of the following is TRUE?
Answer:
Pluto has 5 moons, the largest of which is over half the diameter of Pluto
Question 19: How many Earth years does it take Uranus to orbit the
Sun?
Answer:
84
Question 20: A planet is in orbit around the sun with a semi major
axis of 4 AU. What is its orbital period? (Use p^2=a^3)
, Answer:
8 years
Question 21: In the figure above, how would the semi-major axis , a,
and period, p, be adjusted in order that the white curve matches the
observed plot of the distance of Callisto from Jupiter versus time?
Answer:
Increase a and increase p
Question 22: Besides, the discovery that moons orbit Jupiter, what
other discovery made by Galileo Galilei, with an early telescope,
proved that the Earth is not at the center of the Universe?
Answer:
the phases of venus
Question 23: Why do the orbits of the planets all lie in nearly the
same plane?
Answer:
The early solar nebula flattened into a disk
Question 24: Two planets have the same radius. If planet A is 5
times more massive than planet B, how does gravity differ on the
surfaces of the two planets?
Answer:
gravity is 5 times larger on planet A
Question 25: Compared to blue light, red light has...
Answer:
longer wavelength, smaller frequency, less energy
Question 26: Which would have the longest day and the longest
year?
Answer:
DETAILED SOLUTIONS LATEST UPDATE THIS YEAR
JUST RELEASED
Question 1: What time is it for the little green figure on Earth if
Earth is rotating counterclockwise?
Answer:
6:00 am
Question 2: A mountain top is a good location for optical
telescopes because the site...
Answer:
is above much of the atmosphere
Question 3: What time is the waxing crescent moon directly
overhead
Answer:
3:00 pm
Question 4: The moon has about 1/100th the mass of Earth and
1/4th the radius. What is the surface gravity of the moon compared
to Earth?
Answer:
16/100
Question 5: An emission line is produced when
Answer:
an electron passes from a higher to a lower energy level
Question 6: Of the following types of radiation, which has the
highest frequency?
Answer:
,X-rays
Question 7: The spectrum of an oxygen lamp looks different than
the spectrum of a sodium lamp because:
Answer:
each atom has a unique set of electron orbits
Question 8: Which statement about the rotation of the inner planets
is true?
Answer:
Venus rotates in the opposite direction from the three others
Question 9: The sun formed..
Answer:
at the center of a spinning disk made of gas and dust
Question 10: Could there be a place where it would never be day on
Mercury?
Answer:
There could be a crater that is always in shadow since there is water ice
that survives
Question 11: Which object is shown in this image (big ass moon
jawn)
Answer:
Ganymede
Question 12: Which of the following is NOT a characteristic of
jovian planets?
Answer:
They have a higher density than terrestrial planets
Question 13: How do most craters on moons form
,Answer:
impact of asteroids
Question 14: Could astronauts survive on the surface of Titan
without a space suit; maybe just an oxygen mask or something?
Answer:
No, it is far too cold
Question 15: What is ozone?
Answer:
Three oxygen atoms bonded together into a single molecule (O3)
Question 16: Volcanoes on Venus
Answer:
produce very large lava flows that cover at least 85% of the planet's
surface
Question 17: What was Kepler's first law?
Answer:
Planets revolve around the sun in elliptical orbits with Sun at one focus
of the ellipse.
Question 18: Which of the following is TRUE?
Answer:
Pluto has 5 moons, the largest of which is over half the diameter of Pluto
Question 19: How many Earth years does it take Uranus to orbit the
Sun?
Answer:
84
Question 20: A planet is in orbit around the sun with a semi major
axis of 4 AU. What is its orbital period? (Use p^2=a^3)
, Answer:
8 years
Question 21: In the figure above, how would the semi-major axis , a,
and period, p, be adjusted in order that the white curve matches the
observed plot of the distance of Callisto from Jupiter versus time?
Answer:
Increase a and increase p
Question 22: Besides, the discovery that moons orbit Jupiter, what
other discovery made by Galileo Galilei, with an early telescope,
proved that the Earth is not at the center of the Universe?
Answer:
the phases of venus
Question 23: Why do the orbits of the planets all lie in nearly the
same plane?
Answer:
The early solar nebula flattened into a disk
Question 24: Two planets have the same radius. If planet A is 5
times more massive than planet B, how does gravity differ on the
surfaces of the two planets?
Answer:
gravity is 5 times larger on planet A
Question 25: Compared to blue light, red light has...
Answer:
longer wavelength, smaller frequency, less energy
Question 26: Which would have the longest day and the longest
year?
Answer:
