Doppler

What do the light waves of a galaxy that is moving TOWARD us look like?

• red shifted

• blue shifted

• green shifted

• yellow shifted

Tags

NGSS.HS-ESS1-2

What do the light waves of a galaxy that is moving AWAY from us look like?

• red shifted

• blue shifted

• green shifted

• yellow shifted

Tags

NGSS.HS-ESS1-2

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

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

• It is moving away from Earth (Redshift)

• It is moving towards Earth (Blueshift)

• It is moving towards Earth (Redshift)

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

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

What can you tell about this object's motion?

• Moving to the North (up).

• Moving to the South (down). 

• Moving to the West (left). 

• Moving to the East (right). 

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

Which discovery(ies) came from our understanding redshift/ blueshift?

• The universe is expanding

• Most galaxies are moving away from us

• Andromeda galaxy will collide with the Milky way in 3.75 billion years

• All of the above (and many more)

Tags

NGSS.HS-ESS1-2

As objects move in space, their wavelengths change. This phenomenon is called the...

• Coriolis Effect

• Doppler Effect

• Movement Effect

• Black Hole Effect

Tags

NGSS.HS-PS4-1

The Doppler Effect is observed when a source of sound moves relative to an observer. What happens to the frequency of the sound as the source approaches the observer?

• A) The frequency increases

• B) The frequency decreases

• C) The frequency remains the same

• D) The frequency becomes zero

Tags

NGSS.HS-PS4-1