Galaxy Review

The Milky Way is simply our edge-on view of our home Galaxy.

• This statement is TRUE

• This statement is FALSE

The majority of the mass in the Milky Way lies farther out than the Sun's orbit.

• This statement is TRUE

• This statement is FALSE

The part of the Milky Way we are most familiar with is the:

• Corona.

• Galactic halo.

• Galactic bulge.

• Galactic center.

• Galactic disk.

Most of the new star formation in the Galaxy is found in the:

• Galactic center.

• Globular clusters.

• Galactic halo.

• spiral arms.

• Galactic bulge.

From Earth the view of the Milky Way is a thin band of stars across the night sky. Which part of the Milky Way galaxy is this?

• globular cluster

• Galactic disk

• Galactic halo

• spiral arm

• Galactic bulge

Star formation ceased (stopped) first in the

• Galactic halo.

• spiral arms.

• Galactic disk.

• Galactic nucleus.

• Galactic bulge.

Tags

NGSS.HS-ESS1-3

In the formation of out Galaxy, which of the following formed FIRST?

• Galactic center

• spiral arms

• planetary nebulae

• Galactic disk

• globular clusters

Which sequence of star formation in our Galaxy by age is correct, Oldest to Youngest?

• spiral arms, bulge, halo

• halo, spiral arms, globular clusters

• dark nebulae, planetary nebulae, emission nebulae

• globular clusters, emission nebulae, open clusters

Density waves may explain

• the lack of blue stars in the Galactic halo.

• the spiral arm structure of the Galaxy.

• the large number of open clusters in the Galactic halo.

• the random orbits of Galactic halo stars.

• the density of red stars in the Galactic bulge

The leading explanation for the existence of spiral arms is

• passages of spiral density waves through the interstellar medium.

• passages of massive globular clusters through the Galactic plane.

• shock waves from cyclic supernovae explosions.

• shock waves from the quasar-like eruption of the Galactic core.