Exam 82: The Curvature and Expansion of Universes

The value of omega which gives you a recollapsing universe is ____.

Omega is the ________.

In which type of universe would the angles of a triangle add up to more than 180 degrees?

The factor needed to find out if the universe expands forever or recollapses is the ____.

Einstein's original theory of general relativity predicted this, but Einstein could not believe it was true, and added the cosmological constant to his theory to prevent this prediction.

A Big Crunch will occur if omega is _______________.

If omega is 1, then the universe is at critical density.

If omega is greater than 1, then the universe is open.