Life Cycle of Stars

What is a Nebula?

• A large cloud of gas or dust in space.

• A type of star that is dying.

• A planet that orbits a star.

• A black hole in the universe.

What are the remains of a high mass star called?

• A Neutron Star.

• A Red Giant

• A White Dwarf

• A Black Hole

What is a planetary nebula?

• A type of galaxy formed from dark matter.

• The shell of gas ejected from a medium-mass star at the end of its life.

• A region in space where new stars are born.

• A massive star that has exploded in a supernova.

What is the main sequence phase of a star?

• The phase where a star fuses hydrogen into helium.

• The phase where a star collapses into a black hole.

• The phase where a star expands into a red giant.

• The phase where a star emits light without nuclear fusion.

What is the life span of a star that has begun nuclear fusion?

• Thousands of years.

• Millions of years.

• Billions of years.

• A few hundred years.

What is a Red Super Giant?

• A small star that is very hot and bright.

• A massive star that has expanded and cooled.

• A type of planet that orbits a star.

• A star that has collapsed into a black hole.

What is stellar evolution?

• The process by which a star changes over time.

• The study of stars in different galaxies.

• The method of measuring the distance to stars.

• The phenomenon of stars exploding as supernovae.

What is the process by which stars generate energy?

• Nuclear fission

• Nuclear fusion

• Chemical reaction

• Gravitational collapse

What does a medium-mass star become at the end of its life?

• A Red Giant

• A Neutron Star

• A Black Dwarf

• A White Dwarf

What is a Black Hole?

• An object with a gravitational pull so strong that nothing, not even light, can escape.

• A massive star that has exploded in a supernova.

• A region in space where time stands still.

• A theoretical object that can travel faster than light.