Review - Our Sun and Life Cycle of Stars

Stars are round due to a balance of forces. What is the name of the balance?

• radiation pressure

• nuclear fusion

• gravity

• hydrostatic equilibrium

Why will our sun not become a supernova?

• It is too bright

• It is too small

• It is too large

• It is too old

How will our sun end its life?

• Black hole

• Black dwarf

• Brown dwarf

• Neutron star

The reaction in the core of a star that makes them shine is called

• nuclear fission

• supernova

• hydrostatic equilibrium

• nuclear fusion

Which of the following will give the best indication of a star's temperature?

• the distance of the star

• the radius of the star

• the color of the star

• the age of the star

Which of the following stages represents a dying star?

• Main sequence

• Protostar

• Nebula

• Red Giant

Which of the following is the most abundant element in the Sun?

• Hydrogen

• Helium

• Carbon

• Oxygen

Which of the following is true for red stars as compared to blue stars?

• They live longer

• They are hotter

• They are always brighter

• They convert hydrogen to helium faster

What kind of star lives a very hot, bright and short life?

• Red giant

• Main sequence

• High mass star

• Low mass star

Which of the following is a possible order of life for a low mass star?

• nebula, protostar, brown dwarf, red giant, white dwarf, black dwarf

• protostar, nebula, main sequence, white dwarf, black dwarf

• nebula, protostar, main sequence, red giant, planetary nebula, white dwarf, black dwarf

• protostar, nebula, main sequence, red giant, brown dwarf, white dwarf