Red Shift Blue Shift

If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...

• Moving towards the Earth

• Moving away from the Earth

• This is a trick question that cannot be answered

• It isn't a star, it is a very large blueberry.

Tags

NGSS.HS-PS4-1

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

In redshift, the wavelengths of light become...

• a different color

• shorter

• longer

Tags

NGSS.HS-ESS1-2

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

What color is the longest wavelength?

• Green

• Yellow

• Blue

• Red

When objects move away from an observer, how do we describe the shift in wavelength?

• Red Shift

• Blue Shift

• Yellow Shift

• Stick Shift

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

When objects move away from you, the wavelength...

• 
  Increases (gets longer)

• 
  Decreases (gets shorter)

Tags

NGSS.HS-PS4-1

When objects move toward the observer, how do we describe the shift in wavelength?

• Red Shift

• Blue Shift

• Yellow Shift

• Stick Shift

Tags

NGSS.HS-PS4-1

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

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

• 
  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-PS4-3