Big Bang Evidence pt 2

Front

What can spectra tell us about stars?

Back

Spectra can tell us what elements a star contains.

Front

What does a red shift in distant galaxies indicate?

Back

The universe is expanding.

Front

What conclusion did Edwin Hubble draw from the red-shifted spectra of distant galaxies?

Back

The universe is expanding.

Front

What is unique about the spectrum of each element?

Back

Each element has a unique spectrum, like a fingerprint.

Front

What happens when electricity is passed through different elements?

Back

Every element glows a different color.

Front

What is the significance of red shift in astronomy?

Back

It provides evidence for the expansion of the universe.

Front

How do astronomers use spectra to identify elements in stars?

Back

By analyzing the light spectrum emitted or absorbed by the star.

Front

What does the term 'Big Bang' refer to?

Back

The initial explosion that led to the formation of the universe.

Front

What is the relationship between distance and red shift in galaxies?

Back

The more distant the galaxy, the greater the red shift.

Front

Why is the study of spectra important in understanding the universe?

Back

It helps determine the composition, distance, and movement of celestial objects.