Doppler Shift

Why is the light from distant galaxies red-shifted?

• They produce more red light than nearby galaxies

• They are moving away from us

• The longer wavelengths are filtered out more by dust

• They are moving toward us

Tags

NGSS.HS-ESS1-2

Based on the observed spectrum as compared to the laboratory source, how is the galaxy moving?

• Away

• Towards

• Stationary

Tags

NGSS.HS-PS4-3

Based on these spectra, which Galaxy is moving at the fastest speed away from the Milky Way?

• Galaxy B

• Galaxy C

• Galaxy D

Tags

NGSS.HS-ESS1-2

The absorption lines in the spectrum for Galaxy A are _____ when compared to the lines for the Milky Way.

• red-shifted

• blue-shifted

The spectral lines for the Distant Galaxy are ___, indicating it is moving ___ us.

• red-shifted, toward

• red-shifted, away from

• blue-shifted, toward

• blue-shifted, away from

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-3

The spectral lines for the Galaxy in the Local Group are ___, indicating it is moving ___ us.

• red-shifted, toward

• red-shifted, away from

• blue-shifted, toward

• blue-shifted, away from

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-3

The top spectra is the laboratory spectra and is not moving. What type of shift is shown with the bottom spectra and is the object moving towards or away from the observer?

• Red Shift

  Towards

• Red Shift

  Away

• Blue Shift

  Towards

• Blue Shift

  Away

The absorption lines in the spectrum for Galaxy B are _____ when compared to the lines for the Milky Way.

• red-shifted

• blue-shifted

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-3

In redshift, the wavelengths of light become...

• a different color

• shorter

• longer

Tags

NGSS.HS-ESS1-2

As objects move in space, their wavelengths change. This phenomenon is called the...

• Coriolis Effect

• Doppler Effect

• Movement Effect

• Black Hole Effect

Tags

NGSS.HS-PS4-1