Star Lifecycle Quiz

What is the initial stage of a star's formation?

• Supernova

• Black hole

• Red giant

• Stellar nebula

What causes the dust and gas to spiral together during the formation of a star?

• Magnetic force

• Gravity

• Solar wind

• Friction

What is the name of a star when it is hot enough for hydrogen nuclei to fuse to form helium?

• Neutron star

• Red giant

• Main-sequence star

• Protostar

What happens when the hydrogen begins to run out in a smaller star like our Sun?

• The star forms a neutron star

• The star collapses inward

• The star becomes a black dwarf

• The star expands to become a red giant

What is formed when the mass of a neutron star is sufficiently high to cause further gravitational collapse?

• Red giant

• Supernova

• Neutron star

• Black hole

What is the result of the collapse of a super red giant?

• Supernova

• Main-sequence star

• White dwarf

• Protostar

What is the extremely high temperature and pressure inside a supernova enable the fusion process to create?

• Only helium nuclei

• Elements heavier than iron

• Elements lighter than iron

• All the elements in the periodic table

What is the main difference in the lifecycle of a smaller star and a massive star?

• The size of the star

• The color of the star

• The number of planets engulfed

• The duration of the main-sequence life

What is the result of a black hole's strong gravity?

• It emits light

• It creates a shock wave

• Even light cannot escape it

• It prevents fusion

What is the ultimate fate of a black dwarf?

• It becomes a neutron star

• It cools down and stops releasing heat

• It expands to become a red giant

• It forms a white dwarf