Big Bang, Stars and Nucleosynthesis

Which element was primarily formed during the Big Bang?

• Oxygen

• Hydrogen

• Carbon

• Iron

Tags

NGSS.HS-ESS1-2

What do spectral lines in a star’s spectrum indicate?

• The star’s age

• The elements present in the star

• The star’s distance from Earth

• The star’s size

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

What is nucleosynthesis?

• The process of star formation

• The creation of new atomic nuclei from pre-existing nucleons

• The splitting of atoms

• The movement of stars

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

Which stage comes after the main sequence in the life of a star like the Sun?

• White dwarf

• Red giant

• Neutron star

• Black hole

Tags

NGSS.HS-ESS1-3

What is cosmic background radiation?

• Radiation from the Sun

• Faint microwave radiation left over from the Big Bang

• Radiation from black holes

• Radiation from supernovae

Tags

NGSS.HS-ESS1-2

What are sunspots?

• Bright spots on the Sun’s surface

• Dark, cooler areas on the Sun’s surface

• Explosions on the Sun

• Holes in the Sun

The Doppler effect causes spectral lines to shift if a star is moving. What is this shift called when the star moves away from us?

• Blue shift

• Red shift

• Green shift

• Yellow shift

Tags

NGSS.HS-PS4-3

On the HR Diagram, where are the hottest and brightest stars located?

• Lower right

• Upper left

• Lower left

• Upper right

Which process is responsible for the formation of elements heavier than iron in stars?

• Nuclear fusion

• Nuclear fission

• Supernova nucleosynthesis

• Radioactive decay

Tags

NGSS.HS-ESS1-3

Which axis is typically plotted on the vertical side of the HR Diagram?

• Temperature

• Luminosity

• Mass

• Age