Stars (TEKS 8.9.A)

Front

What is the next probable stage in the life cycle of a star after it has exhausted its hydrogen fuel?

Back

red giant

Front

What determines a star's life cycle?

Back

A star's life cycle is determined by its mass.

Front

What does a Hertzsprung-Russell diagram illustrate?

Back

A Hertzsprung-Russell diagram illustrates the relationship between a star's luminosity and its temperature.

Front

What is the significance of a star's mass in its life cycle?

Back

A star's mass determines its temperature, luminosity, and the duration of its life cycle.

Front

What happens to a star when it becomes a red giant?

Back

When a star becomes a red giant, it expands and cools, leading to a significant increase in size.

Front

What are the characteristics of the oldest stars in the universe?

Back

The oldest stars are typically dim and cooler than younger stars.

Front

What is the main sequence phase in a star's life cycle?

Back

The main sequence phase is the longest stage in a star's life cycle where it fuses hydrogen into helium.

Front

What is a supernova?

Back

A supernova is a powerful explosion that occurs at the end of a star's life cycle, often resulting in the formation of a neutron star or black hole.

Front

What is the difference between a white dwarf and a neutron star?

Back

A white dwarf is the remnant of a low to medium mass star, while a neutron star is the remnant of a massive star that has undergone a supernova.

Front

What role does nuclear fusion play in a star's life?

Back

Nuclear fusion is the process that powers a star, converting hydrogen into helium and releasing energy.