Red and Blue Shift

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-PS4-3

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

An object that is moving VERY fast away from Earth would have ________ than an object that is moving very slow away from Earth.

• More Redshift

• More Blueshift

• Less Redshift

• Less Blueshift

Tags

NGSS.HS-ESS1-2

An object that is moving VERY fast towards the Earth would have ________ than an object that is moving very slow towards the Earth.

• More Redshift

• More Blueshift

• Less Redshift

• Less Blueshift

When redshift occurs, the perceived frequency of the wave would...

• Increase

• Decrease

• Stay the same

Tags

NGSS.HS-PS4-1

When redshift occurs, the perceived WAVELENGTH of the wave would...

• Increase

• Decrease

• Stay the same

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-1

When blueshift occurs, the perceived frequency of the wave would...

• Increase

• Decrease

• Stay the same

Tags

NGSS.HS-PS4-1

When blueshift occurs, the perceived WAVELENGTH of the wave would...

• Increase

• Decrease

• Stay the same

Tags

NGSS.HS-PS4-1

What is the primary cause of redshift in the light from distant galaxies?

• The expansion of the universe

• The gravitational pull of black holes

• The rotation of galaxies

• The presence of dark matter

Tags

NGSS.HS-ESS1-2

Which of the following best describes blueshift?

• Light waves are stretched, moving towards the red end of the spectrum

• Light waves are compressed, moving towards the blue end of the spectrum

• Light waves remain unchanged

• Light waves are absorbed by interstellar dust

Tags

NGSS.HS-PS4-3