1.3 - Expanding Universe

What color is the longest wavelength?

• Green

• Yellow

• Blue

• Red

Tags

NGSS.HS-PS4-1

When objects move towards you, the wavelength....

• Increases (gets longer)

• Decreases (gets shorter)

Tags

NGSS.HS-PS4-1

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

• Red Shift

• Blue Shift

Tags

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

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

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

If a star is being observed from Earth and it's light has shifted towards the blue 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

NGSS.HS-PS4-3

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-ESS1-2

NGSS.HS-PS4-3

In redshift, the wavelengths of light become...

• a different color

• shorter

• longer

Tags

NGSS.HS-ESS1-2

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

• Galaxy B

• Galaxy C

• Galaxy D

Tags

NGSS.HS-PS2-1