Big Bang/Stars Review

Front

What does redshift indicate about a galaxy?

Back

Redshift indicates that a galaxy is moving away from us.

Front

What happens to stars as you move to the left on the Hertzsprung-Russell diagram?

Back

Stars get hotter.

Front

What is an example of the Doppler Shift?

Back

A police siren sounds different when it moves away from us.

Front

True or False: Constellations are stars that appear to be in a pattern.

Back

True.

Front

Which star is hotter than Deneb?

Back

Regel.

Front

What is the Big Bang Theory?

Back

The Big Bang Theory is the leading explanation for the origin of the universe, stating that it began as a singularity and has been expanding ever since.

Front

What is a galaxy?

Back

A galaxy is a massive system that consists of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

Front

What is the significance of the Hertzsprung-Russell diagram?

Back

The Hertzsprung-Russell diagram is a scatter plot of stars showing the relationship between their absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.

Front

What is a supernova?

Back

A supernova is a powerful and luminous explosion of a star, marking the end of its life cycle.

Front

What is the difference between a red giant and a white dwarf?

Back

A red giant is a late stage in a star's life cycle characterized by expansion and cooling, while a white dwarf is the remnant core of a star that has exhausted its nuclear fuel.