Big Bang Review

Front

What happens to the spectral lines of a star moving away from Earth?

Back

The spectral lines are observed to be wider or broader and red-shifted.

Front

What is the name of our home galaxy?

Back

The Milky Way.

Front

What does blue shifting in a spectrum indicate?

Back

An object is moving towards the observer.

Front

What is a spectrum?

Back

Light emitted from a star or galaxy can be separated into a band of colors, called a spectrum.

Front

Which of the following is NOT evidence of the Big Bang Theory?

Back

Stars that are blue shifted.

Front

What is red shift?

Back

Red shift is the phenomenon where light from an object moving away from the observer is shifted to longer wavelengths.

Front

What is cosmic background radiation?

Back

Cosmic background radiation is the afterglow radiation from the Big Bang, filling the universe.

Front

What does the abundance of hydrogen and helium in the universe suggest?

Back

It supports the Big Bang Theory as these elements were formed in the early universe.

Front

What is the significance of the universe expanding?

Back

It supports the Big Bang Theory, indicating that the universe has been growing since its inception.

Front

What is the Doppler effect?

Back

The change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source.