Star Life Cycle Review

Front

What powers main sequence stars?

Back

Nuclear fusion reactions power main sequence stars, allowing them to emit heat and light.

Front

What is the adult phase of the star life cycle where stars spend most of their time?

Back

The adult phase is known as the Main Sequence.

Front

What process do stars undergo during the main sequence phase?

Back

During the main sequence, stars fuse hydrogen atoms into helium atoms.

Front

What happens to low-mass stars after the red giant phase?

Back

Low-mass stars lose their outer gas layers and become a planetary nebula.

Front

What is NOT an outcome after a high-mass star undergoes a supernova?

Back

A white dwarf is NOT an outcome after a high-mass star undergoes a supernova.

Front

What is a supernova?

Back

A supernova is a powerful explosion that occurs at the end of a high-mass star's life cycle.

Front

What is a black hole?

Back

A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What is a neutron star?

Back

A neutron star is the remnant core of a massive star after a supernova, composed mostly of neutrons.

Front

What is the difference between nuclear fusion and nuclear fission?

Back

Nuclear fusion combines light atomic nuclei to form heavier nuclei, while nuclear fission splits heavy atomic nuclei into lighter nuclei.

Front

What is a red giant?

Back

A red giant is a late stage in the life cycle of a star, characterized by a large size and a reddish color.