Astro 150 Trivia - February 2, 2024

Quiz
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Physics
•
University
•
Medium

Jake Simon
Used 12+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these is dependent on distance?
Brightness
Luminosity
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is the LEAST bright?
A star with the sun's luminosity 10 ly away
A star with half the sun's luminosity 5 ly away
A star with the sun's luminosity 5 ly away
A star with a quarter of the sun's luminosity 3 ly away
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of these emits the most energetic photons?
A radio broadcast tower
The lights in this room
A microwave oven
A doctor's x-ray machine
Answer explanation
Out of all of these, x-rays have the shortest wavelength or highest frequency, making that light the most energetic.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Hotter objects produce...
Mostly infrared light
Redder light
Temperature is not related to light emission
Bluer light
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Hotter objects produce...
Fewer photons
More photons
More gasses that emit photons
Temperature is not related to the number of emitted photons
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why are blackbodies called "blackbodies?"
The first one discovered was black in color
They don't emit any light
They are usually obscured in some way, making them look black
They reflect little to no light
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which one of these deals with the peak wavelength of a blackbody?
Stefan-Boltzman law
Law of blackbodies
Wien's Law
Law of peak wavelengths of blackbodies
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