Astronomy: Exam 1 Questions With 100% Verified Answers
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Course
Astronomy
Institution
Astronomy
Astronomy: Exam 1 Questions With 100%
Verified Answers
What is an Astronomical Unit equal to? - answerThe average distance of the Earth from the
Sun
As the frequency of a photon decreases, the photon energy ________. As the wavelength
decreases, the photon energy _______. - answerdecreases; in...
According to Kirchoff's laws, a hot, low-density gas produces ______, a hot solid object
produces a ________, and a low-density cool gal produces an __________ - answer✔an
emission line spectrum; continuous spectrum; absorption line spectrum
A photon of which color has the highest energy? - answer✔Violet
The temperature in the room is closest to: 100 K, 20 K, 290 K, 173 K, or 459 K? - answer✔290
K
If you are facing south, you should hold your sky chart with _______ at the bottom. -
answer✔South
Earth's atmosphere does not pass electromagnetic radiation at which wavelengths? - answer✔X-
rays and gamma rays because Earth's atmosphere is not transparent to these rays
A professor shakes a spring stretched horizontally. If he were to slow down his shaking (fewer
shakes per second) the wavelength of the waves would _______ - answer✔Increase because it is
creating bigger wavelengths, thus increasing how big the wavelength is
What value is needed to directly find the surface temperature of the Sun? - answer✔Lambda max
(find by using Wien's law)
As seen from Bloomington, the sky appears to rotate daily _______, about _________ -
answer✔counterclockwise, Polaris
The H Alpha line has a wavelength of ________, and is in the ________ part of the spectrum -
answer✔656 nm; red
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