19-Star Formation PPT worksheet

What is the process stars go through during their lifespan?

• Born, mature, and die

• Expand, contract, and explode

• Freeze, melt, and evaporate

• Grow, shrink, and disappear

What balances the inward pull of gravity in a main sequence star?

• Magnetic fields

• Nuclear fusion pressure

• Solar winds

• Tidal forces

What is the final stage of a star's evolution as shown in the diagram?

• A red giant

• A white dwarf

• A supernova

• A black hole

What is the primary element in a star's core during its main phase?

• Helium

• Carbon

• Hydrogen

• Oxygen

What is the fate of a star after it exhausts its hydrogen and helium?

• It becomes a black hole.

• It becomes a white dwarf.

• It becomes a neutron star.

• It becomes a supernova.

What is formed when a star sheds its outer layers after the red giant phase?

• Black hole

• Supernova

• Planetary nebula

• Neutron star

What is the core called that remains after the outer layers of a star are ejected?

• Red giant

• White dwarf

• Black hole

• Neutron star

What happens to a white dwarf over time?

• It expands

• It explodes

• It cools

• It heats up

What phase do high-mass stars enter after becoming larger than red giants?

• White dwarf

• Red supergiant

• Blue giant

• Yellow dwarf

What is one of the most powerful events in the universe mentioned in the text?

• Solar eclipse

• Supernova

• Lunar eclipse

• Meteor shower