Cosmology Unit Test Review

Front

The universe is __________ years old.

Back

13,700,000,000 (billion)

Front

The universe is infinitely old and has no age.

Back

False

Front

Red shift was first observed by which scientist?

Back

Edwin Hubble

Front

What factor will determine the death of our universe? Options: age of the universe, the rate at which stars die, Critical Density, the age of our sun

Back

Critical Density

Front

Cosmic microwave radiation originated from what?

Back

The Big Bang

Front

If you were to stand on star Wolf 359 and view the absorption lines on a spectrum for other galaxies, you would see.....

Back

that all galaxies are moving away from you

Front

The universe was in a hot dense state....

Back

immediately after the big bang

Front

The further a galaxy is from the observer the faster it is moving away. This is an explanation of what law?

Back

Hubble's Law

Front

Galaxy D has a velocity of 150 Km/S, Galaxy E has a velocity of 3000 Km/S. Which galaxy is further away?

Back

Galaxy E

Front

A common measure of distance in space is....

Back

a light year