Star Formation and Molecular Polarity Quiz

What is the first stage in the life cycle of a star?

• White dwarf

• Main sequence

• Protostar

• Supernova

What force is primarily responsible for the collapse of a nebula to form a protostar?

• Electromagnetic force

• Gravitational force

• Nuclear force

• Weak force

What is the primary fuel of a main sequence star?

• Helium

• Carbon

• Hydrogen

• Oxygen

What process powers stars and allows them to shine?

• Nuclear fission

• Nuclear fusion

• Chemical combustion

• Radioactive decay

What will a massive star become after a supernova explosion?

• White dwarf

• Neutron star or black hole

• Red giant

• Brown dwarf

What determines the fate of a star after it leaves the main sequence?

• Its magnetic field

• Its temperature

• Its mass

• Its chemical composition

Which element is primarily produced in the core of a star during its main sequence stage?

• Oxygen

• Iron

• Hydrogen

• Helium

What type of star is in the final stage of evolution for a sun-like star?

• Red giant

• Neutron star

• White dwarf

• Black hole

A star that has exhausted its hydrogen fuel and expanded into a large, luminous phase is called:

• A white dwarf

• A red giant

• A main sequence star

• A brown dwarf

Which event marks the death of a massive star?

• Planetary nebula formation

• Supernova explosion

• White dwarf cooling

• Neutron decay