The Life and Death of the Sun

What determines the way a star dies?

• Its color

• Its age

• Its mass

• Its distance from Earth

What happens when the sun runs out of hydrogen in its core?

• It begins hydrogen shell burning

• It collapses into a neutron star

• It starts fusing helium

• It becomes a black hole

What is the role of the Pauli exclusion principle in the sun's lifecycle?

• It prevents the sun from collapsing into a black hole

• It causes the sun to expand

• It initiates hydrogen fusion

• It leads to the sun's explosion

What is the significance of the helium flash in the sun's lifecycle?

• It initiates the fusion of helium into carbon

• It leads to the sun becoming a supernova

• It marks the end of the sun's life

• It causes the sun to shrink permanently

During the sun's second red giant phase, what is a possible outcome for Earth?

• Earth will remain unchanged

• Earth will become a new star

• Earth may end up orbiting inside the sun

• Earth will be ejected from the solar system

What happens to the sun's outer layers during the final red giant phase?

• They become solid

• They are blasted away, possibly forming a planetary nebula

• They collapse into the core

• They turn into a new planet

What is the potential fate of Earth's iron core after the sun becomes a white dwarf?

• It will be ejected into space

• It will form a new planet

• It will orbit the white dwarf sun

• It will become a black hole

Where might humanity find refuge during the sun's red giant phase?

• On Venus

• On Mars

• On the moons of Jupiter

• On the surface of the sun

What is the relationship between potential energy and mass?

• Potential energy has no effect on mass

• Mass increases with potential energy

• Mass decreases with potential energy

• Mass is unrelated to potential energy

What is the significance of the habitable zone during the sun's red giant phase?

• It disappears completely

• It expands beyond Neptune's orbit

• It contracts to the sun's surface

• It remains unchanged