Big Bang and Life Cycles of Stars

Big Bang theory says that

• the early universe was small, hot, and dense
• there is no God.
• something came from nothing
• the universe's age can't be known

Galaxies that are moving away from us look more _____ than expected.

• white
• blue
• yellow
• red

Which is *not* evidence for the Big Bang theory?

• red-shifted galaxies
• hieroglypiphics describing the instant of the Big Bang
• smooth cosmic background radiation
• amounts of hydrogen and helium

As galaxies move away from us, the light waves we see coming from them are

• scrunched together.
• louder.
• not affected in any way.
• stretched out.

The change in wavelength of light or sound that is due to the relative motion of the source towards or away from an observer.

• Radar Effect
• Doppler Effect
• Light Effect
• Reflection

What does the Big Bang theory suggest?

• The universe was just there
• The Milky Way is the only solar system
• The universe is continually expanding
• The universe started as a point and is moving towards each other

According to the Doppler effect, what happens to the sound waves in a car moving away from you?

• They move more quickly, so their pitch increases
• Their frequency increases, so their pitch increases
• Their wavelength increases, so their pitch increases

The only force acting on the nebulae is ________.

• thermal
• singular
• gravity
• microscopic

A star is born when ________________ begins to happen.

• nuclear fusion
• nuclear abrasion
• crying
• nuclear fission

Larger, cooler stars are called ___________.

• Blue Giants
• White Dwarfs
• Red Giants
• Yellow Giants