Universe Retest Review

Front

In the process of nuclear fusion, hydrogen atoms combine to form ___________ atoms.

Back

helium

Front

A star is born in a cloud of gas and dust called a __________.

Back

nebula

Front

What do the light waves of a galaxy that is moving AWAY from us look like?

Back

red shifted

Front

Our Sun is classified as an average star. This places it in the middle of which type of star on the HR diagram?

Back

Main sequence

Front

As galaxies move away from our galaxy, a shift on the electromagnetic spectrum (EMS) is noticed. This phenomena is called _____________.

Back

redshift

Front

What is the term for the process by which stars generate energy by fusing hydrogen into helium?

Back

nuclear fusion

Front

What is a nebula?

Back

A nebula is a large cloud of gas and dust in space, often the birthplace of stars.

Front

What does redshift indicate about a galaxy's movement?

Back

Redshift indicates that a galaxy is moving away from us.

Front

What is the HR diagram used for?

Back

The HR diagram is used to classify stars based on their luminosity and temperature.

Front

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

Back

A red giant is a large, luminous star in the late stages of its life, while a white dwarf is a small, dense remnant of a star that has exhausted its nuclear fuel.