Exploring Stars and Galaxies Quiz

What is the most common type of star in the universe?

• Red Giant

• White Dwarf

• Red Dwarf

• Blue Supergiant

Which stage in the life cycle of a star is characterized by nuclear fusion of hydrogen into helium?

• Protostar

• Main Sequence

• Red Giant

• White Dwarf

Identify the galaxy type that is characterized by a flat, rotating disk containing stars, gas, and dust, and a central concentration of stars known as the bulge.

• Elliptical Galaxy

• Irregular Galaxy

• Spiral Galaxy

• Lenticular Galaxy

What is the final stage of a massive star's life cycle before it becomes a black hole?

• Red Giant

• Neutron Star

• Supernova

• White Dwarf

What does Aldbaran fuse now?

• It fuses hydrogen and helium

• It fuses hydrogen to carbon

• It fuses helium to carbon

• It fuses helium to hydrogen.

Explain why red dwarfs have longer lifespans compared to other types of stars.

• They have more mass.

• They burn their fuel slowly.

• They are cooler in temperature.

• They are larger in size.

Which type of galaxy is the Milky Way classified as?

• Elliptical Galaxy

• Irregular Galaxy

• Spiral Galaxy

• Lenticular Galaxy

What is the primary factor that determines the life cycle path of a star?

• Temperature

• Mass

• Luminosity

• Distance from Earth

Describe the process that leads to the formation of a black hole.

• A star expands and cools.

• A star collapses under its own gravity.

• A star explodes and disperses.

• A star loses its outer layers.

Which of the following best describes a neutron star?

• A star that has exhausted its nuclear fuel and collapsed into a dense core.

• A star that is in the main sequence phase.

• A star that is expanding and cooling.

• A star that is forming from a nebula.