Quiz Submissions - Chapter 13 Quiz
[redacted] (username: [redacted 0]6)
Attempt 1
Written: Feb 11, 2020 7:07 PM - Feb 11, 2020 7:14 PM
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Question 1 		1 / 1 point
With today’s advanced technology, we can measure the parallax for any star inside the Milky Way.
Question options:
	True
>	False

Question 2 		1 / 1 point

The absolute magnitude of a star is a measure of its luminosity.
Question options:
>	True
	False
Question 3 		1 / 1 point

Stars that have spectral type B are lower in temperature than spectral type M.
Question options:
	True
>	False
Question 4 		1 / 1 point

A star’s mass determines where it lies on the main sequence of an H-R diagram.
Question options:
>	True
	False
Question 5 		0 / 1 point

The stars that have the largest radii are classified as supergiants.
Question options:
	True
"wrong">	False
Question 6 		1 / 1 point
To measure the parallax of the most distant stars measurable, we would make two measurements of the star’s position on the sky separated by:
Question options:
	

6 Hours
	

12 Hours
	

24 hours
	

>6 Months
	

12 Months
Question 7 		1 / 1 point

Star A is a red star. Star B is a blue star. Which star is hotter?
Question options:
	

Star A is hotter.
	

>Star B is hotter.
	

They are the same temperature.
	

We also need to know the luminosities of the stars to determine their temperatures.
	

Color is not related to temperature at all.
Question 8 		0 / 1 point

What type of spectrum do most stars produce?
Question options:
	
an absorption spectrum on top of a blackbody spectrum
	
an emission spectrum on top of a blackbody spectrum
	
an absorption spectrum on top of an emission spectrum
	
a pure emission spectrum
	
Wrong>a pure blackbody spectrum
Question 9 		1 / 1 point

Which sequence correctly lists the spectral classes of stars in order from hottest to coolest?
Question options:
	

A B F G K M O
	

O A B G F M K
	

A F O B M G K
	

>O B A F G K M
	

M K G F A B O
Question 10 		1 / 1 point

When astronomers refer to “heavy elements,” which elements are they talking about?
Question options:
	

all elements
	

all elements more massive than hydrogen
	

>all elements more massive than helium
	

all elements more massive than carbon
	

all elements more massive than iron
Attempt Score:
8 / 10 - 80 %
Overall Grade (highest attempt):
8 / 10 - 80 %