Exploring the Cosmos: The Life Cycle of Stars

What force is primarily responsible for the formation of stars?

• Electromagnetic force

• Gravity

• Nuclear force

• Friction

What process powers a star throughout its life?

• Nuclear fusion

• Gravitational collapse

• Magnetic induction

• Chemical reactions

What determines the color and temperature of a star?

• The presence of nearby stars

• Its mass and rate of fusion

• The amount of dust around it

• Its distance from Earth

What is the fate of our Sun when it runs out of hydrogen fuel?

• It will turn into a white dwarf

• It will transform into a neutron star

• It will become a black hole

• It will explode as a supernova

What phenomenon occurs when a white dwarf gathers enough mass from a companion star?

• It becomes a neutron star

• It reverts to a main sequence star

• It explodes as a type 1a supernova

• It turns into a black hole

What is a neutron star?

• A very large and bright star

• A star that does not emit light

• A star in its initial stages of formation

• A star made entirely of neutrons

What is the significance of supernovae in the universe?

• They mark the birth of new stars

• They are the primary source of light in the universe

• They distribute heavy elements necessary for life

• They signal the formation of black holes

What are brown dwarfs?

• Failed stars that couldn't sustain nuclear fusion

• Stars that have exhausted all their nuclear fuel

• The remnants of supernovae

• Neutron stars that have cooled down

What happens when two neutron stars collide?

• They form a larger neutron star

• They explode as a supernova

• They release energy more than the Sun's lifetime output

• They create a black hole

What are blue stragglers?

• Dwarf stars that emit blue light

• Neutron stars with a blue hue

• Supernovae remnants

• Stars that appear younger than they should be