Stars, Planets, Dwarf Planets Review

The Sun is made almost entirely of what two elements?

• Hydrogen, Oxygen

• Hydrogen, Lithium

• Hydrogen, Helium

• Hydrogen, Nitrogen

A young, hot star would most likely be ______ in color.

• Blue

• Yellow

• Orange

• Red

A cool star at the end of its main sequence would most likely be _________ in color.

• Blue

• Yellow

• Orange

• Red

99.8% of the mass of our solar system is from the __________.

• Earth

• Sun

• all the planets combined

• Moon

After a supernova, the core of a star will contract to a point of no volume, but infinite gravity.

• Black Hole

• Neutron Star

• White Dwarf

• Nebula

The leftover core of a Sun-like star that is composed mostly of carbon and extremely dense.

• Black Hole

• Neutron Star

• White Dwarf

• Nebula

A star that is so dense that charged subatomic particles decay leaving only neutral particles behind.

• Black Hole

• Neutron Star

• White Dwarf

• Nebula

A large interstellar cloud of dust and gas.

• Black Hole

• Neutron Star

• White Dwarf

• Nebula

What is the proper sequence for the life cycle of an average star?

• Stellar nebula, red giant, planetary nebula, white dwarf

• Stellar nebula, red giant, planetary nebula, black hole

• Stellar nebula, red supergiant, supernova, neutron star

• Stellar nebula, red supergiant, supernova, white dwarf

What is the proper sequence for the life cycle of an massive star?

• Stellar nebula, red giant, planetary nebula, white dwarf

• Stellar nebula, red giant, planetary nebula, black hole

• Stellar nebula, red supergiant, supernova, neutron star

• Stellar nebula, red supergiant, supernova, white dwarf