Astrophysics

Which of the following is the evidence of the expansion of universe?

• Blue shift

• Red shift

• Cosmic microwave background radiation (CMBR)

• Supernova

Tags

NGSS.HS-ESS1-2

What is the approximate position of giants in the shown HR diagram?

• D

• C

• A

• B

The nuclear reaction that takes place in the core of the stars is

• Nuclear disposition

• Nuclear fission

• Nuclear fusion

• Nuclear composition

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Our sun in the milky way galaxy belongs to the main sequence stars of HR Diagram

• True

• False

Which of the following is the largest?

• Planet

• Galaxy

• Satellite

• Comet

• Star

Tags

NGSS.MS-ESS1-3

Which is the correct order for a star's life cycle?

• Main sequence -> red dwarf -> white dwarf

• Protostar -> main sequence -> neutron star -> Red giant

• Main sequence -> red supergiant -> supernova -> neutron star

• Red giant -> supernova -> white dwarf -> black dwarf

Tags

NGSS.HS-ESS1-3

What is the reason a Main sequence star is so stable?

• The number of atoms remain the same

• The radiation pressure balances the pressure of weight/gravity

• Magnetic forces within it hold it together

• It has plenty of emotional support from it's friends

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What is a comet?

• Large rocky ball of ice that orbits the sun

• Cluster of billions of stars

• Lumps of rock or iron that orbit the sun

• Minor planets

Tags

NGSS.MS-ESS1-3

Which of the following are evidence for the big bang?

• Cosmic microwave background radiation

• Blue shift

• Gravity

• Black holes

Tags

NGSS.HS-ESS1-2

Evidence that galaxies are moving away from us.

• red shift of H spectrum

• blue shift of H spectrum

• background radiation

• .blue shift of He spectrum

Tags

NGSS.HS-ESS1-2