The Origin of the Universe Flashcards
What is the Universe?
The sum of all space, matter, and energy that ever existed or will exist.
What is most of the universe made of?
Empty space, mostly vacuum and dark matter.
What did Edwin Hubble propose?
That the universe is constantly expanding, he proved it with the red shifts and the Doppler Effect.
What are the Red and Blue Shifts?
Changes on a spectrum, red showing that an object is moving away and blue showing that an object is getting closer.
What is the Big Bang Theory?
One of the prominent theories that explains the origin of the universe.
What evidence supports the Big Bang Theory?
Cosmic background radiation.
Where is it believed that matter came from?
From atoms from the huge amounts of radiation.
What is Dark Matter?
A strange type of matter that has never been measured but could make up 90% of the universe. We don’t know much about it.
What is the Theory of Relativity?
A theory in which very large objects curve space towards them.
