Star life cycle review

What is the initial stage of a star's life called when a nebula contracts?

• Main sequence star

• Red giant

• Protostar

• White dwarf

What happens when a star becomes a main sequence star?

• It explodes

• Nuclear fusion starts

• It becomes a black hole

• It turns into a nebula

What does a low or medium mass star become after it runs out of hydrogen fuel?

• Neutron star

• Red supergiant

• White dwarf

• Black hole

What remains after a high-mass star explodes?

• White dwarf

• Red giant

• Neutron star

• Protostar

What is the process called when hydrogen atoms fuse together in a star?

• Supernova

• Nuclear fusion

• Nebula formation

• Gravitational collapse

What is the term for the initial clumps formed by gravity pulling a nebula together?

• Protostar

• Red giant

• White dwarf

• Supernova

What is a neutron star?

• A red super giant star explodes

• A large cloud of gas or dust in space

• The remains of a high mass star

• Exerts such a strong gravitational pull that no light escapes

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

• Red giant

• Nebula

• White dwarf

• Black dwarf

What are clouds of dust and gas from which a star first forms called?

• Supernova

• Nebulae

• Black hole

• White dwarf

At the end of the life of a giant star, what is resulted when a red supergiant’s core collapses on itself?

• Black hole

• Supernova

• White dwarf

• Nebula