Redshift

RED shift of light means the star is moving

• toward Earth

• away from Earth

• not moving

Tags

NGSS.HS-ESS1-2

RED shift is proof that the universe is

• expanding (getting bigger)

• contracting (getting smaller)

Tags

NGSS.HS-ESS1-2

Which provides proof that the universe is expanding?

• Red shift of light from distant stars

• Blue shift of light from distant starts

Tags

NGSS.HS-ESS1-2

Galaxies that are redshifted are:

• actually blue.

• really far away.

• invisible.

• moving away from us.

Tags

NGSS.HS-ESS1-2

Which of the following is a method used to measure redshift?

• Observing the brightness of a star

• Analyzing the spectrum of light from an object

• Measuring the object's temperature

• Calculating the object's mass

Tags

NGSS.HS-ESS1-2

The vast majority of galaxies in our universe are moving away from us.  We know this because we observe __________ in the galaxies absorption spectra.

• Redshift

• Blueshift

• Turbulance

• Superposition

Tags

NGSS.HS-ESS1-2

What evidence did astronomers have to show that our universe is expanding?

• Blue Shift

• Red Shift

Tags

NGSS.HS-ESS1-2

Evidence that the universe is expanding is best supported by the observation that the wavelengths

of light from distant galaxies are shifted toward the

• (1) red end of the spectrum because they are shortened

• (2) red end of the spectrum because they are lengthened

• (3) blue end of the spectrum because they are shortened

• (4) blue end of the spectrum because they are lengthened

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-1

How does redshift relate to the distance of a galaxy from Earth?

• The greater the redshift, the closer the galaxy

• The greater the redshift, the farther the galaxy

• Redshift does not relate to distance

• Redshift is only related to the galaxy's size

Tags

NGSS.HS-ESS1-2

How does the Doppler Effect explain the redshift observed in distant galaxies?

• The galaxies are stationary

• The galaxies are moving towards us

• The galaxies are moving away from us

• The galaxies are changing in size

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-1

NGSS.HS-PS4-3