Galaxy Review

Which type of galaxy is characterized by having no particular axis of rotation, stars having random orbits, and having older stars?

• elliptical galaxy

• irregular galaxy

• lenticular galaxy

• spiral galaxy

Tags

NGSS.MS-ESS1-2

Which type of galaxy is characterized by active formation of new stars, presence of a central bulge and "arms," and stars orbiting around the center in the same direction?

• elliptical galaxy

• irregular galaxy

• lenticular galaxy

• spiral galaxy

Which type of galaxy is characterized by the following: having high amounts of dust but little amounts of gas; little amount of star formation; having a central bulge but with no "arms"?

• elliptical galaxy

• irregular galaxy

• lenticular galaxy

• spiral galaxy

Which type of galaxy which does not have a definite shape?

• elliptical galaxy

• irregular galaxy

• lenticular galaxy

• spiral galaxy

Which of the following is a galaxy whose shape might be distorted by a nearby galaxy?

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Which of the following is a galaxy similar to our own, the Milky Way galaxy?

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Tags

NGSS.MS-ESS1-2

A collection of stars, dust, and gas bound together by gravity

• Galaxy

• Galactic disk

• spiral arm

• dark halo

Tags

NGSS.MS-ESS1-2

Flattened region of gas and dust that bisects the galactic halo in a spiral galaxy; region of active star formation.

• Spiral galaxy

• Galactic disk

• spiral arm

• variable star

Region of a galaxy extending far above and below the galactic disk, where globular clusters and other old stars reside

• Dark halo

• Galactic halo

• dark matter

• variable star

Galaxy composed of a flattened, star-forming disk component which may have spiral arms and a large central galactic bulge

• Variable stars

• Galactic center

• Spiral galaxy

• Rotation curve