P Flashcards
The passing of time is measured by
Something changing
What is the arrow of time
Describes time passing by changing from order to disorder
What is an entropy
Is a measurement of disorder of time beams us that entropy increases
What is increasing in the universe
Enyropy
What age of the universe
13.8 billion years old
Speed. Of light
300,000mls
Speed of earth around the sun
67000mph
Can anything travel faster than light
No
What is a light year
The distance light travels in a year
What distance is the next star
4.3 light years away
George lemalre did what
Pros Moses that the universe was expanding
What did Edwin Hubble do
He proved George was correct
Hubble found out what else
Galaxy’s are moving always form us
If a galaxy is further away doe it move faster
Yes
What is the Big Bang
How the universe begins