Big Bang Theory Exploration

Big Bang Theory Crash Course

by Mindy Swanson

​Watch it!

• ​According to the video, which scientist

Multiple Choice

What was the scientific framework of the nature of the universe at the beginning of the 20th century?

• The universe is really old (at least millions of years) and mostly unchanging.

• The universe began several thousand years ago and then changed into its present state.

• The universe began billions of years ago with a big bang

• The universe had no beginning, it always existed and always was pretty much as it is now.

Multiple Choice

Slipher's evidence of redshifted galaxies and Lemaitre and Friedman's examination of Einstein's equations pointed to....

• An expanding universe

• A shrinking universe

• A static (unchanging) universe

• A multiverse

Multiple Choice

The observations of an expanding universe can be extrapolated backwards to tell us...

• The universe used to be much bigger than it is now

• The whole universe was once all condensed into one incredibly dense and hot point

• The universe hasn't changed since it started

• The universe didn't have a beginning

Multiple Choice

Because of "lookback time", when we actually see the light from a star we see it...

• as it was in the past, the number of lightyears distant it is from us.

• As the star is right now but redshifted

• As it will be in the future

• Really bright and white in color

Multiple Choice

The cosmic microwave background radiation is...

• The redshifted light from the beginning of the universe, only now reaching us

• Dangerous and should be avoided

• The evidence that the universe has always been as it is now

• NOT something predicted by the big bang theory

Multiple Select

Other predictions that the big bang theory makes that are evidence of it being correct:

(Select all that apply)

• Ratios of Hydrogen and Helium in the universe

• Sizes and shapes of largest structures in the cosmos

• Life on earth evolved from dinosaurs

• Our sun will one day be swallowed up by a black hole