Stellar Evolution and Cosmology Quiz

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

• Nebula
• Main Sequence Star
• Red Giant
• White Dwarf

During which stage of a star's life cycle does nuclear fusion of hydrogen begin?

• Nebula
• Main Sequence Star
• Red Giant
• Supernova

What happens when a star like our Sun depletes its hydrogen fuel?

• It becomes a black hole
• It explodes in a supernova
• It expands into a red giant
• It immediately becomes a white dwarf

What is the final stage in the life cycle of a Sun-like star?

• Red Giant
• Supernova
• Neutron Star
• Black Dwarf

Which of the following is NOT a possible end stage for a large star?

• Supernova
• Neutron Star
• Black Hole
• White Dwarf

Approximately how long will it take for our Sun to become a red giant?

• 1 million years
• 500 million years
• 5 billion years
• 50 billion years

What determines the color of a star?

• Its mass
• Its age
• Its surface temperature
• Its chemical composition

Which color indicates a hotter star?

• Red
• Yellow
• White
• Blue

What does the absolute magnitude of a star represent?

• Its actual size
• Its brightness if viewed from 10 parsecs away
• Its brightness as seen from Earth
• Its mass

What does the apparent magnitude of a star represent?

• Its actual size
• Its brightness if viewed from 10 parsecs away
• Its brightness as seen from Earth
• Its mass