Unit 6 Reviewn

Front

What is the name of the explosion at the death of a massive star?

Back

Supernova

Front

What is not a galaxy?

Back

Optical Galaxy

Front

Using the HR diagram, what color is Zeta Eridani?

Back

Blue

Front

What are galaxies composed of?

Back

Stars, dust, and gas held together by gravity.

Front

What color of star is the hottest?

Back

Blue

Front

What is a supernova?

Back

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

Front

What are the main components of a galaxy?

Back

Stars, gas, dust, and dark matter.

Front

What does the HR diagram represent?

Back

The Hertzsprung-Russell diagram represents the relationship between the luminosity and temperature of stars.

Front

What color of stars are the coolest?

Back

Red stars are the coolest.

Front

What is the significance of a star's color in relation to its temperature?

Back

A star's color indicates its surface temperature; blue stars are the hottest, while red stars are the coolest.