Life Cycle of a Medium-Sized Star Quiz

What characteristic of a star determines its fate?

• Color

• Mass

• Temperature

• Size

What is the lower limit of mass for a medium-sized star?

• 0.5 solar masses

• 1.4 solar masses

• 2 solar masses

• 3 solar masses

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

• Red Giant

• Main Sequence

• Supernova

• Protostar

What happens when a star's core runs out of hydrogen?

• It begins helium fusion

• It becomes a red giant

• It becomes a white dwarf

• It becomes a black hole

What is the final stage of a medium-sized star's life cycle?

• Black Hole

• Neutron Star

• Red Giant

• White Dwarf

What element does the star's core reduce to before a supernova explosion?

• Hydrogen

• Iron

• Helium

• Carbon

What is the size of a neutron star compared to a city?

• Depends on the city

• Equal

• Smaller

• Larger

What is the rotation speed of a neutron star?

• 10 times per second

• 20 times per second

• 30 times per second

• 1 time per second

What is the weight of a teaspoon of material from a neutron star on Earth?

• 1 trillion tons

• 1 ton

• 1,000 tons

• 1 million tons

What is the final stage of a medium-sized star's life cycle?

• Neutron Star

• Black Hole

• White Dwarf

• Red Giant