Characteristics of Stars, Big Bang, etc. (NEED ESRTs)

Front

What does the luminosity of a star describe?

Back

The brightness of the star.

Front

What process do stars use to give off heat and light?

Back

Nuclear fusion.

Front

What are stars that are much smaller than the Sun called?

Back

White dwarfs.

Front

What evidence supports the theory that the Universe began with a massive explosion?

Back

Cosmic background radiation (microwaves) in space.

Front

Which star has a temperature of 25,000 K and a luminosity of 50,000?

Back

Spica.

Front

What is the main component of stars that undergo nuclear fusion?

Back

Hydrogen.

Front

What is the life cycle of a star primarily dependent on?

Back

Its mass.

Front

What is the term for the explosion of a massive star at the end of its life cycle?

Back

Supernova.

Front

What is the significance of cosmic background radiation in cosmology?

Back

It is evidence of the Big Bang theory.

Front

What type of star is formed when a star exhausts its nuclear fuel and collapses?

Back

Neutron star or black hole, depending on the mass.