Review - Life of a Star and HR Diagram

Front

What two qualities of stars are displayed in a Hertzsprung-Russell diagram?

Back

Surface Temperature & Absolute Magnitude.

Front

What causes the gas and dust in a nebula to pull together to form a protostar?

Back

Gravity.

Front

In which category of star is the Sun found on an H-R Diagram?

Back

Main Sequence.

Front

What element is produced when hydrogen fuses during the birth of a star?

Back

Helium.

Front

What type of star has a temperature of 2,000 K and a luminosity less than the Sun?

Back

Red Dwarf.

Front

What is the main purpose of the Hertzsprung-Russell diagram?

Back

To classify stars based on their luminosity and temperature.

Front

What is a protostar?

Back

A developing star that forms from the gravitational collapse of a nebula.

Front

What is nuclear fusion?

Back

The process where two light atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

What is the significance of a star's absolute magnitude?

Back

It measures the intrinsic brightness of a star as if it were at a standard distance of 10 parsecs.

Front

What does the surface temperature of a star indicate?

Back

It affects the color and spectral type of the star.