Ready to test your Knowledge?
Try out our new practice tests completely free!
exam preparation banner icon

Astronomy Today

Physics & Astronomy

Quiz 23 :

The Milky Way Galaxy: A Spiral in Space

Quiz 23 :

The Milky Way Galaxy: A Spiral in Space

Question Type
search
arrow
The center of the Milky Way lies in the direction of the constellation Cygnus.
Free
True False
Answer:

Answer:

False

Tags
Choose question tag
close menu
arrow
The Milky Way is simply our edge-on view of our home Galaxy.
Free
True False
Answer:

Answer:

True

Tags
Choose question tag
close menu
arrow
Motions of objects near our Galaxy's core suggest the central black hole is about 3.7 billion solar masses.
Free
True False
Answer:

Answer:

False

Tags
Choose question tag
close menu
arrow
A pulsating variable star with a period of 10 days would be a Cepheid.
True False
Answer:
Tags
Choose question tag
close menu
arrow
Shapley found the Sun is located about halfway out the disk from the center of the disk of the Galaxy.
True False
Answer:
Tags
Choose question tag
close menu
arrow
The instability strip includes many main sequence stars.
True False
Answer:
Tags
Choose question tag
close menu
arrow
Henrietta Leavitt first showed the relationship between the mass and luminosity of Cepheids and their period of pulsation; the brighter,the longer this period.
True False
Answer:
Tags
Choose question tag
close menu
arrow
As Curtiss thought,our Milky Way is now known to be quite similar to the nearby Andromeda Galaxy,M-31.
True False
Answer:
Tags
Choose question tag
close menu
arrow
RR Lyrae stars pulsate,but with shorter periods and lower luminosities than Cepheids.
True False
Answer:
Tags
Choose question tag
close menu
arrow
Shapley correctly argued that the rotation of the spiral nebulae proved they could not be very distant.
True False
Answer:
Tags
Choose question tag
close menu
arrow
The core of the Milky Way,Sagittarius A,is a strong radio source in the sky.
True False
Answer:
Tags
Choose question tag
close menu
arrow
Spiral arms are regions of star formation,which accounts for their blue color.
True False
Answer:
Tags
Choose question tag
close menu
arrow
The majority of the mass of the Milky Way lies farther out than the Sun's orbit.
True False
Answer:
Tags
Choose question tag
close menu
arrow
Population I stars came billions of years before Population II stars.
True False
Answer:
Tags
Choose question tag
close menu
arrow
The Earth lies close to the center of the Galaxy.
True False
Answer:
Tags
Choose question tag
close menu
arrow
In our vicinity,the galactic disk is about 100 times wider than it is thick.
True False
Answer:
Tags
Choose question tag
close menu
arrow
The rotation curve for our Galaxy shows stars beyond the Sun moving slower than expected.
True False
Answer:
Tags
Choose question tag
close menu
arrow
William Herschel's original model for our Galaxy was based on counting stars.
True False
Answer:
Tags
Choose question tag
close menu
arrow
Shapley found that globular clusters are only found in the Galactic bulge.
True False
Answer:
Tags
Choose question tag
close menu
arrow
It is harder to map the structure of the Milky Way as a whole in visible light than with any other form of electromagnetic radiation.
True False
Answer:
Tags
Choose question tag
close menu
Showing 1 - 20 of 105