Warm-up: Star Spectra

What gases are in the unknown mixture?

• Gas B & Gas D
• Gas C & Gas B
• Gas A & Gas D
• Gas D & Gas C

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

This unknown star contains 

• beryllium
• copper
• manganese
• strontium

Tags

NGSS.HS-ESS1-3

NGSS.HS-PS1-1

What is red shift?

• When a star collapses.
• Galaxies and stars are moving away from us. 
• A very luminous burst of radiation
  
• When the sun collapses.

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-3

Choose all that apply. A star's spectra tells us what about a star.

• composition of that star (what elements make up that star)

• movement of a star (red shift or blue shift)

• brightness of a star

• temperatures of a star

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

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.

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

We primarily use emission/absorption spectra to identify ____________ of stars.

• composition

• temperature

• luminosity

• frankfurter

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

Which elements are in the mixture?

• A only

• D only

• Z only

• A and D

• D and Z

Tags

NGSS.HS-PS4-1

Which elements are present in the mixture?

• D and E

• D and G

• E and G

• only D

• only G

Tags

NGSS.MS-PS1-1

By studying the spectra of stars, scientists were able to see redshifting, indicating the universe is ____________

• shrinking

• expanding

• not moving

• static

Tags

NGSS.HS-ESS1-2