Intro to Astronomy (correct answers)
You see Mars at 2 AM and notice that it is in a different place in the sky than it was at
10 PM. What real motion is responsible for this observation? correct answers Earths
Rotation
You see Jupiter at 10 PM and notice that it is in a different place in the sky than it was at
the same time exactly one year ago. What real motion is responsible for this
observation?: correct answers the orbits of other planets
You see the star Sirius at 10 PM one night, but 6 months later at 10 PM you can't find
Sirius anywhere. What real motion is responsible for this observation?: correct answers
Earth's orbit
You see a Full Moon one night, and then a week later you see a Third Quarter Moon.
What real motion is responsible for this observation? correct answers The moon's orbit
In which phase(s) of the Moon can a lunar eclipse occur correct answers Full
On which day(s) does everyone on Earth have 12 hours of daylight and 12 hours of
darkness?: correct answers Spring
Which particles are found in the nucleus of the oxygen atom correct answers Neutrons
and Protons
Which particles are made of quarks correct answers Neutrons and Protons
Which type of atom has only one proton correct answers Hydrogen
Which of the following effects is due primarily to 'warped' or 'curved' spacetime? correct
answers The moon orbiting the earth
When two protons are held 1 millimeter apart, which force is stronger between them
correct answers the electromagnetic force
According to the photon description, what is the difference between one color of light
and another correct answers The energy of the photons
According to the wave description, what is the difference between one color of light and
another correct answers the wavelength of the light
Which of the following indicates the correct order for the different kinds of light correct
answers radio, IR, visible, UV, x-ray, gamma ray
Which of the following colors has the highest frequency correct answers violet
,Which of the following colors corresponds to the lowest energy photons correct answers
red
Which of the following types of light has the shorter wavelength correct answers
ultraviolet
Which of the following types of light corresponds to higher energy photons correct
answers x-ray
You are looking at a cloud of gas, or nebular, through your telescope. Assuming there is
no bright source of light behind it, what type of spectrum would you expect to see
correct answers emission spectrum
You are doing a spectroscopic study of the Sun. What type of spectrum would you
expect to see correct answers absorption spectrum
What kind of telescope is the Keck telescope correct answers reflecting telescope, for
visible light
What is the VLA correct answers Very Large Array of radio telescopes in New Mexico
Where is Palomar Observatory correct answers So Cal
What kind of light does Arecibo detect correct answers radio
Which of the following telescopes is up in space? correct answers Spitzer, Chandra,
Compton, James Webb (once completed)
Which kind of focus allows astronomers to put their detecting instruments down at the
bottom of a reflecting telescope, rather than up at the top correct answers Cassegrain
focus
On a plot of Hubble's law, what are the quantities that are plotted on the horizontal and
vertical axes, respectively correct answers distance and redshift
According to the Big Bang theory, which of the following process was the first to occur
correct answers the fundamental forces separating from each other
Approximately how long after the Big Bang did the creation of new elements stop
because the Universe had cooled too much for fusion or nucleosynthesis to occur
correct answers 3 mins
According to the Big Bang theory, when the Universe first began all four fundamental
forces were combined as one. Which force was the first one to break away from the
others? correct answers the gravitational force
, According to the Big Bang theory, which of the following is the best estimate of the
current age of the Universe correct answers 14 billion years
One of the experimental tests of the Big Bang theory is the amount of helium in the
Universe. According to the theory, approximately how much of the matter in the
Universe would have been helium back when the first stars began to form correct
answers 25%
Another experimental test of the Big Bang theory is the cosmic background radiation.
According to the theory, what is the approximate background temperature of the
Universe today correct answers 3K (kelvin)
From Redding, California, there are some stars that are in the sky every night of the
year. Where would you look to see these stars?: correct answers to the north
From Redding, California, there are some stars that are in the sky every night of the
year. Where would you look to see these stars?: correct answers on earth day
pretend that you are living on the Moon, in a place where you can see Earth. If folks
living on the Earth were seeing a Full Moon, what would the Earth look like to you
correct answers the dark side of the earth would be facing you
You have just measured the redshifts of two different galaxies. Galaxy A has a redshift
of 2 and Galaxy B has a redshift of 4. According to Hubble's law, which of the following
is the best statement about the relative distances of the two galaxies from Earth?:
correct answers galaxy B is twice as far away as galaxy A
How many constellations are there, total correct answers 18
Which of the following is not an official constellation correct answers the Big Dipper
In which phase of the Moon can a solar eclipse occur correct answers New
On what day of the year is Earth's northern hemisphere tipped most directly towards the
Sun correct answers the Summer Solstice
It is 10 PM and you are looking at the sky to the north. The Big Dipper is directly to the
east of the North Star. Where will the Big Dipper be at 4 AM, in relation to the North Star
correct answers above it
It is 10 PM and you notice a bright star just above the horizon, directly to the south. Will
it still be visible at 4 AM? correct answers no, it will have set
Approximately when does a First Quarter Moon rise correct answers 12 noon
You see Mars at 2 AM and notice that it is in a different place in the sky than it was at
10 PM. What real motion is responsible for this observation? correct answers Earths
Rotation
You see Jupiter at 10 PM and notice that it is in a different place in the sky than it was at
the same time exactly one year ago. What real motion is responsible for this
observation?: correct answers the orbits of other planets
You see the star Sirius at 10 PM one night, but 6 months later at 10 PM you can't find
Sirius anywhere. What real motion is responsible for this observation?: correct answers
Earth's orbit
You see a Full Moon one night, and then a week later you see a Third Quarter Moon.
What real motion is responsible for this observation? correct answers The moon's orbit
In which phase(s) of the Moon can a lunar eclipse occur correct answers Full
On which day(s) does everyone on Earth have 12 hours of daylight and 12 hours of
darkness?: correct answers Spring
Which particles are found in the nucleus of the oxygen atom correct answers Neutrons
and Protons
Which particles are made of quarks correct answers Neutrons and Protons
Which type of atom has only one proton correct answers Hydrogen
Which of the following effects is due primarily to 'warped' or 'curved' spacetime? correct
answers The moon orbiting the earth
When two protons are held 1 millimeter apart, which force is stronger between them
correct answers the electromagnetic force
According to the photon description, what is the difference between one color of light
and another correct answers The energy of the photons
According to the wave description, what is the difference between one color of light and
another correct answers the wavelength of the light
Which of the following indicates the correct order for the different kinds of light correct
answers radio, IR, visible, UV, x-ray, gamma ray
Which of the following colors has the highest frequency correct answers violet
,Which of the following colors corresponds to the lowest energy photons correct answers
red
Which of the following types of light has the shorter wavelength correct answers
ultraviolet
Which of the following types of light corresponds to higher energy photons correct
answers x-ray
You are looking at a cloud of gas, or nebular, through your telescope. Assuming there is
no bright source of light behind it, what type of spectrum would you expect to see
correct answers emission spectrum
You are doing a spectroscopic study of the Sun. What type of spectrum would you
expect to see correct answers absorption spectrum
What kind of telescope is the Keck telescope correct answers reflecting telescope, for
visible light
What is the VLA correct answers Very Large Array of radio telescopes in New Mexico
Where is Palomar Observatory correct answers So Cal
What kind of light does Arecibo detect correct answers radio
Which of the following telescopes is up in space? correct answers Spitzer, Chandra,
Compton, James Webb (once completed)
Which kind of focus allows astronomers to put their detecting instruments down at the
bottom of a reflecting telescope, rather than up at the top correct answers Cassegrain
focus
On a plot of Hubble's law, what are the quantities that are plotted on the horizontal and
vertical axes, respectively correct answers distance and redshift
According to the Big Bang theory, which of the following process was the first to occur
correct answers the fundamental forces separating from each other
Approximately how long after the Big Bang did the creation of new elements stop
because the Universe had cooled too much for fusion or nucleosynthesis to occur
correct answers 3 mins
According to the Big Bang theory, when the Universe first began all four fundamental
forces were combined as one. Which force was the first one to break away from the
others? correct answers the gravitational force
, According to the Big Bang theory, which of the following is the best estimate of the
current age of the Universe correct answers 14 billion years
One of the experimental tests of the Big Bang theory is the amount of helium in the
Universe. According to the theory, approximately how much of the matter in the
Universe would have been helium back when the first stars began to form correct
answers 25%
Another experimental test of the Big Bang theory is the cosmic background radiation.
According to the theory, what is the approximate background temperature of the
Universe today correct answers 3K (kelvin)
From Redding, California, there are some stars that are in the sky every night of the
year. Where would you look to see these stars?: correct answers to the north
From Redding, California, there are some stars that are in the sky every night of the
year. Where would you look to see these stars?: correct answers on earth day
pretend that you are living on the Moon, in a place where you can see Earth. If folks
living on the Earth were seeing a Full Moon, what would the Earth look like to you
correct answers the dark side of the earth would be facing you
You have just measured the redshifts of two different galaxies. Galaxy A has a redshift
of 2 and Galaxy B has a redshift of 4. According to Hubble's law, which of the following
is the best statement about the relative distances of the two galaxies from Earth?:
correct answers galaxy B is twice as far away as galaxy A
How many constellations are there, total correct answers 18
Which of the following is not an official constellation correct answers the Big Dipper
In which phase of the Moon can a solar eclipse occur correct answers New
On what day of the year is Earth's northern hemisphere tipped most directly towards the
Sun correct answers the Summer Solstice
It is 10 PM and you are looking at the sky to the north. The Big Dipper is directly to the
east of the North Star. Where will the Big Dipper be at 4 AM, in relation to the North Star
correct answers above it
It is 10 PM and you notice a bright star just above the horizon, directly to the south. Will
it still be visible at 4 AM? correct answers no, it will have set
Approximately when does a First Quarter Moon rise correct answers 12 noon
