Galaxies and Space Distances

Which of the following drawings most accurately represents the shape of the Milky Way?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS1-2

Which kind of galaxy is illustrated above?

• elliptical

• barred spiral

• irregular

• spiral

Galaxies that do not fit into the spiral or elliptical classifications are called

• dwarf galaxies.

• Hubble galaxies.

• barred galaxies.

• irregular galaxies.

Disc-like galaxies with spiral arms are divided into which of the following two subclasses?

• flat spirals and barred spirals

• loose spirals and flat spirals

• normal spirals and barred spirals

• normal spirals and flat spirals

The universe began as a point and has been expanding ever since is called the ...

• Hubble constant model.

• critical density theory.

• Big Bang theory.

• flat universe model.

Tags

NGSS.HS-ESS1-2

Evidence suggests that the universe contains a great amount of ...

• visible matter.

• dark matter.

• mystery matter.

• invisible matter.

Which would cause the universe to collapse in on itself to make a closed universe?

• momentum of outward expansion

• Hubble constant

• force of gravity

• critical density

Tags

NGSS.HS-PS2-4

In the Big Bang model, which describes a universe that will stop expanding and begin to contract?

• closed

• elliptical

• flat

• open

Tags

NGSS.HS-ESS1-2

The average distance between the Sun and Earth is called ...

• a red shift

• The Astronomical Unit

• a light-year

• a parsec

Tags

NGSS.MS-ESS1-3

Which unit is best to measure the distance to Neptune?

• a red shift

• The Astronomical Unit

• a light-year

• a parsec