Milky Way Galaxy Quiz

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| By Odtanner1

Odtanner1

Community Contributor

Quizzes Created: 1 | Total Attempts: 663

| Attempts: 665

2.

The most prominent feature of the Milky Way Galaxy are these long curves of bright stars, star clusters and gas and dust.
- Nuclear bulge
- Globular cluster
- Spiral arms
- Halo
Correct Answer

A. Spiral arms

Explanation

The most notable feature of a spiral galaxy such as the Milky Way Galaxy are the spiral arms that wind outward. These arms have a bluish color to them because they contain hot, blue stars; clouds of dust and gas; and very young star clusters. This gives us a clue that the regions of the spiral arms contain the conditions necessary for star formation.

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3.

There is evidence that supports the existence of a supermassive black hole at the center of the Milky Way Galaxy.
- True
- False
Correct Answer

A. True

Explanation

The black hole at the center of the Milky Way Galaxy is named Sagittarius A* (SgrA*). Astronomers have used large infrared telescopes to track the paths of stars that orbit extremely quickly in the area surrounding region of SgrA*. Using the size and period of the orbit of the stars, astronomers are able to calculate the mass at the center where SgrA* is located. The large mass of 3.7 million solar masses led scientists to conclude that only object that could have this large of a mass is a black hole.

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4.

Extra mass is found in the Milky Way Galaxy in an area that extends ten times farther than the edge of the visible disk. This region is sometimes called a ___________ __________.

Correct Answer
dark halo, galactic corona
galactic corona, dark halo

Explanation
Evidence suggests that this dark halo may contain up to two trillion solar masses. Some of this mass is composed of dim stars and white dwarfs. But the majority of the mass is thought to be an unknown substance that does not produce light. Astronomers call this form of matter, dark matter.

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0
5.

Watch the following video about data from NASA's Fermi Gamma-ray Space Telescope. Scientists have recently discovered a gigantic, mysterious structure in our Milky Way Galaxy. After viewing, write a short explanation of what the structures are and how you think they may have developed.

Milky Way Galaxy Quiz

Select the two main components of the Milky Way Galaxy from the list

Quiz Preview

The most prominent feature of the Milky Way Galaxy are these long curves of bright stars, star clusters and gas and dust.

There is evidence that supports the existence of a supermassive black hole at the center of the Milky Way Galaxy.

Extra mass is found in the Milky Way Galaxy in an area that extends ten times farther than the edge of the visible disk. This region is sometimes called a _ .

Watch the following video about data from NASA's Fermi Gamma-ray Space Telescope. Scientists have recently discovered a gigantic, mysterious structure in our Milky Way Galaxy. After viewing, write a short explanation of what the structures are and how you think they may have developed.

Milky Way Galaxy Quiz

Select the two main components of the Milky Way Galaxy from the list

Quiz Preview

The most prominent feature of the Milky Way Galaxy are these long curves of bright stars, star clusters and gas and dust.

There is evidence that supports the existence of a supermassive black hole at the center of the Milky Way Galaxy.

Extra mass is found in the Milky Way Galaxy in an area that extends ten times farther than the edge of the visible disk. This region is sometimes called a ___________ __________.

Watch the following video about data from NASA's Fermi Gamma-ray Space Telescope. Scientists have recently discovered a gigantic, mysterious structure in our Milky Way Galaxy. After viewing, write a short explanation of what the structures are and how you think they may have developed.

Extra mass is found in the Milky Way Galaxy in an area that extends ten times farther than the edge of the visible disk. This region is sometimes called a _ .