Exit Ticket

Front

What determines the life-cycle of a star?

Back

The life-cycle of a star is determined by its mass.

Front

What does a Hertzsprung-Russell diagram graph?

Back

A Hertzsprung-Russell diagram graphs the luminosity of stars on the y-axis versus their temperature along the x-axis.

Front

Define luminosity in the context of stars.

Back

Luminosity is the total amount of energy emitted by a star per unit time, often measured in watts.

Front

What is the relationship between a star's mass and its lifespan?

Back

Generally, more massive stars have shorter lifespans because they burn their fuel more quickly.

Front

What is the main sequence in the life cycle of a star?

Back

The main sequence is the stable phase in a star's life where it fuses hydrogen into helium in its core.

Front

What happens to a star after it exhausts its hydrogen fuel?

Back

After exhausting hydrogen fuel, a star may expand into a red giant and eventually shed its outer layers, leaving behind a core.

Front

What is a supernova?

Back

A supernova is a powerful and luminous explosion that occurs at the end of a star's life cycle, often resulting from the collapse of a massive star.

Front

What is a white dwarf?

Back

A white dwarf is the remnant core of a star that has exhausted its nuclear fuel and shed its outer layers, typically very dense and hot.

Front

What is a neutron star?

Back

A neutron star is the collapsed core of a massive star, composed almost entirely of neutrons, and is incredibly dense.

Front

What is a black hole?

Back

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