Redshift

The change in wavelength that allows us to determine if an object if moving toward us or away from us

• Whiteshift and Blueshift

• Redshift and Greenshift

• Redshift and Blueshift

Tags

NGSS.HS-PS4-1

What do we observe when stars/galaxies are moving away from us?

• Cosmic Background Radiation

• Blueshift

• Nothing

• Redshift

What happens to the wavelengths of energy if they are moving AWAY from a source?

• The waves stretch out and get longer.

• The waves compress and get shorter.

Tags

NGSS.HS-PS4-1

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 relative to Earth

• It is moving away from Earth (Redshift)

• It is moving towards Earth (Blueshift)

• It is moving towards Earth (Redshift)

Tags

NGSS.HS-PS4-3

The change in wavelength of light or sound that is due to the relative motion of the source towards or away from an observer.

• Radar Effect

• Doppler Effect

• Light Effect

• Reflection

Tags

NGSS.HS-PS4-1

The theory that the universe is expanding is supported by the

• blue shift of light from distant galaxies

• red shift of light from distant galaxies

Tags

NGSS.HS-ESS1-2

Base your answer to the following question on the diagram below representing the bright-line spectrum (fingerprint) for an element. The spectrum of the same element observed in the light from a distant star is shown below. The shift in the spectral lines (fingerprint) indicates that the star is moving

• toward Earth

• away from Earth

Tags

NGSS.HS-ESS1-2

The red shift of visible light waves that is seen by astronomers on Earth is used to determine the

• sizes of nearby galaxies

• movement of distant galaxies

Tags

NGSS.HS-ESS1-2

The diagram below shows the spectral lines for an element.

Which diagram best represents the spectral lines of this element when its light is observed coming from a star that is moving away from Earth?

• 
• 
• 
• 

Tags

NGSS.HS-PS4-3

When viewed from Earth, the light from very distant galaxies shows a red shift. This is evidence that these distant galaxies are

• moving away from Earth

• moving toward Earth

Tags

NGSS.HS-ESS1-2