Cosmos Review

Which type of galaxy is shown?

• Spiral

• Irregular

• Round

• Elliptical

Which statement is correct?

• A star spends most of its life in a nebula.

• All stars die during a supernova.

• A baby star is called a protostar.

• Low mass stars end as black holes.

Tags

NGSS.HS-ESS1-3

Which color star is the hottest?

• Red

• Orange

• Blue

• Yellow

All stars begin as a __________?

• giant

• black hole

• white dwarf

• nebula

Stars are formed in a large cloud of gas and dust called a

• cumulonimbus cloud

• nebula

• neutron star

• black hole

Tags

NGSS.HS-ESS1-3

The vast majority of galaxies in our universe are moving away from us.  We know this because we observe __________ in the galaxies absorption spectra.

• Redshift

• Blueshift

• Turbulance

• Superposition

Tags

NGSS.HS-ESS1-2

A red shift in the observed light from very distant galaxies suggests that the universe is

• fixed and stationary

• contracting continuously

• moving randomly

• constantly expanding

Tags

NGSS.HS-ESS1-2

In our expanding universe

• Galaxies are moving away from each other due to gravity.

• More distant galaxies experience less redshift.

• The Milky Way is at the center of the expansion.

• Galaxies appear to move away due to the expansion of space itself.

Tags

NGSS.HS-ESS1-2

Use the image to identify the motion of the object relative to Earth.  Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.

• It is not moving

• It is moving away from Earth (Redshift)

• It is moving towards Earth (Blueshift)

• It is moving towards Earth (Redshift)

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

What conclusion can be made by comparing the two spectrums in the image?

• Galaxy is blueshifted; star is moving towards Earth.

• Galaxy is blueshifted; star is moving away from Earth.

• Galaxy is redshifted: star is moving away from Earth.

• Galaxy is redshifted; star is moving towards Earth.

Tags

NGSS.HS-PS4-4