Big Bang & Light (24)

Front

What was the first element to form in the universe?

Back

Hydrogen

Front

What is red shift in astronomy?

Back

Objects in space will appear a color closer to the red end of the spectrum than they are, if moving away from you.

Front

What does the Big Bang Theory state about the beginning of the universe?

Back

The Universe began in a very tiny, hot, dense state.

Front

How does the surface temperature of red stars compare to blue stars?

Back

Red stars have a lower surface temperature than blue stars.

Front

Which two elements can be identified in a mixture using spectra?

Back

Sodium and Helium.

Front

What is the significance of the Big Bang Theory in understanding the universe?

Back

It explains the origin of the universe and its expansion from a hot, dense state.

Front

What does the term 'light year' measure?

Back

The distance that light travels in one year.

Front

What is the relationship between wavelength and color in light?

Back

Different colors of light correspond to different wavelengths; red light has a longer wavelength than blue light.

Front

What is cosmic microwave background radiation?

Back

It is the afterglow radiation from the Big Bang, filling the universe.

Front

What is the Doppler effect in relation to light?

Back

It describes the change in frequency or wavelength of light from an object moving relative to an observer.