Quiz on the Life Cycle of Stars

What happens at the start of a star's life cycle?

• Fusion reactions take place

• The star explodes

• The star cools down

• The star becomes a black hole

What is the balance that keeps a star stable?

• Outwards forces from fusion and inwards gravitational forces

• Magnetic forces and electrical forces

• Chemical reactions and thermal expansion

• Rotational speed and orbital path

What is the life cycle of a star dependent on?

• The mass of the star

• The color of the star

• The temperature of the star

• The distance from Earth

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

• Protostar

• Red giant

• White dwarf

• Black hole

What is the final stage for a star much bigger than the Sun?

• Black hole

• White dwarf

• Red giant

• Main sequence star

What is the main sequence star stage?

• A stable period in a star's life cycle

• The beginning of a star's life

• The end of a star's life

• A period of rapid expansion

What is the process that exerts an outwards force on a star?

• Fusion energy release

• Gravitational collapse

• Magnetic field generation

• Chemical reaction

What is the stage after a red super giant for stars much bigger than the Sun?

• Supernova

• White dwarf

• Protostar

• Main sequence star

What is the stage before a black hole in the life cycle of a massive star?

• Neutron star

• Red giant

• White dwarf

• Protostar

What is the cause of the red shift in light from distant galaxies?

• The galaxies are moving towards us

• The space has been expanding

• The galaxies are spinning

• The light is bending