Big Bang 1
The theory that most scientist believes explains how our universe began is called ________________.
Big Bang Theory
(True/False) The Big Bang Theory is the most widely accepted theory about the origin of the universe
True
A date that is commonly accepted by Big Bang theorists for the Big Bang is ____ years ago
13.7 billion
The Big Bang Theory explains the formation of the...
universe
Order these from largest to smallest wavelength
a) Visible
b) Microwave
c) X-ray
Microwave
Visible
X-ray
A Hertsprung-Russell Diagram contacts which variable on it's Y - AXIS?
Brightness / luminosity
A Hertsprung-Russell Diagram contacts which variable on it's X - AXIS?
Temperature
Which weighs more, a ton of concrete or a ton of feathers?
Both weigh the same
If something has been 'redshifted', what has happened to its wavelength?
Most distant galaxies show a RED SHIFT. This is considered EVIDENCE that the universe is ___.
expanding
An ambulance has driven past you.
The pitch of the siren has just decreased. This is caused by what effect?
Doppler Effect
You will find me on Mercury, Earth, Mars, and Jupiter, but not on Venus or Neptune. What am I?
The letter 'R'
(True/False) Big Bang theorists believe that most matter should be complex, large atoms, like gold and plutonium.
False
The remaining energy (radiation) from the big bang is called ________.
CMB -Cosmic Microwave Background
CMB stands for
Cosmic Microwave Background Radiation
The CMB was accidentally discovered. The noise they were seeing was first thought to be caused by what animal?
Pigeons
Which SCIENTIST was responsible for contributing to the knowledge that the universe is expanding?
Edwin Hubble
Mpc stands for _________ and is equivalent to ______ light years
Megaparsec
3.26 million
How is the "Big Bang" described?
As a period of rapid expansion.
"The universe exists now as it always has" is a view of what theory
Steady State Theory