Astro 7n Unit 1 & 2 Quiz Answers (Exam 1)
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From Earth, in which constellation might you find the planet Saturn? - ✔✔Taurus
Why don't we see the constellation Orion at night all throughout the year - ✔✔As the Earth orbits the
Sun, its nighttime side point to different constellations at different points along its orbit
When is the best time for you to be able to see the constellation that is your sign of the Zodiac? - ✔✔At
midnight six months after your birthday
Constellations close to the North pole of Earth: - ✔✔Move in a circle around the North star, Polaris, over
the course of a single night.
There are a total of 88 constellations. Roughly how many of these can be seen at any given time from a
single location on a clear night? - ✔✔44
What is the relationship between wavelength and frequency? - ✔✔If the frequency increases the
wavelength decreases
Compare the frequency of an X-ray with that of visible light. - ✔✔The X-ray has a larger frequency than
visible light
Compare the frequency and wavelength of gamma ray with visible light. - ✔✔Gamma ray frequency is
higher and it's wavelength is lower
If the frequency of radiation is twice as large then its wavelength is... - ✔✔half as large
The spectrum of an oxygen lamp looks different than the spectrum of a sodium lamp because: - ✔✔each
atom has a unique set of electron orbits
, Dark lines in an absorption spectrum represent: - ✔✔particular energies of light coming from a distant
object that are absorbed by material in between
Which of the following is FALSE? - ✔✔The energy of a photon increases in proportion to the wavelength
of the radiation.
Which of the following is true? - ✔✔An absorption spectrum appears as continuous spectrum
interrupted by a series dark lines.
The electrons in a cloud of hydrogen gas are making the transition from excited states to the ground
state. What does the spectrum of this cloud of hydrogen gas look like? - ✔✔It will consist of a few bright
emission lines at specific wavelengths.
In what ways does a 30 meter telescope outperform a 10 meter telescope? - ✔✔Its images are 9 times
brighter than a 10 meter
Even the largest ground based telescopes have resolution restrictions imposed by: - ✔✔Atmospheric
blurring of images
When you magnify an object with a telescope, what else happens to your view of the sky? - ✔✔Your
field of view gets smaller so you can only see a small area of the sky
How long would one need to observe a star on a 10 meter telescope to collect the same amount of light
as one collects in one hour on a 5 meter telescope? - ✔✔15 minutes
What was Kepler's First Law? - ✔✔Planets revolve around the sun in elliptical orbits with the Sun at one
focus of the ellipse.
What best describes the orbit of the Earth around the Sun? - ✔✔An ellipse that is close to being circular.
2024 Questions & Answers | 100% Correct |
Verified
From Earth, in which constellation might you find the planet Saturn? - ✔✔Taurus
Why don't we see the constellation Orion at night all throughout the year - ✔✔As the Earth orbits the
Sun, its nighttime side point to different constellations at different points along its orbit
When is the best time for you to be able to see the constellation that is your sign of the Zodiac? - ✔✔At
midnight six months after your birthday
Constellations close to the North pole of Earth: - ✔✔Move in a circle around the North star, Polaris, over
the course of a single night.
There are a total of 88 constellations. Roughly how many of these can be seen at any given time from a
single location on a clear night? - ✔✔44
What is the relationship between wavelength and frequency? - ✔✔If the frequency increases the
wavelength decreases
Compare the frequency of an X-ray with that of visible light. - ✔✔The X-ray has a larger frequency than
visible light
Compare the frequency and wavelength of gamma ray with visible light. - ✔✔Gamma ray frequency is
higher and it's wavelength is lower
If the frequency of radiation is twice as large then its wavelength is... - ✔✔half as large
The spectrum of an oxygen lamp looks different than the spectrum of a sodium lamp because: - ✔✔each
atom has a unique set of electron orbits
, Dark lines in an absorption spectrum represent: - ✔✔particular energies of light coming from a distant
object that are absorbed by material in between
Which of the following is FALSE? - ✔✔The energy of a photon increases in proportion to the wavelength
of the radiation.
Which of the following is true? - ✔✔An absorption spectrum appears as continuous spectrum
interrupted by a series dark lines.
The electrons in a cloud of hydrogen gas are making the transition from excited states to the ground
state. What does the spectrum of this cloud of hydrogen gas look like? - ✔✔It will consist of a few bright
emission lines at specific wavelengths.
In what ways does a 30 meter telescope outperform a 10 meter telescope? - ✔✔Its images are 9 times
brighter than a 10 meter
Even the largest ground based telescopes have resolution restrictions imposed by: - ✔✔Atmospheric
blurring of images
When you magnify an object with a telescope, what else happens to your view of the sky? - ✔✔Your
field of view gets smaller so you can only see a small area of the sky
How long would one need to observe a star on a 10 meter telescope to collect the same amount of light
as one collects in one hour on a 5 meter telescope? - ✔✔15 minutes
What was Kepler's First Law? - ✔✔Planets revolve around the sun in elliptical orbits with the Sun at one
focus of the ellipse.
What best describes the orbit of the Earth around the Sun? - ✔✔An ellipse that is close to being circular.
