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
When did the Big bang occur?
13-15 billion years ago
The Big Bang Theory explains the formation of the...
universe
What is nuclear fusion?
2 or more atomic nuclei combine to form a larger nucleus
2 key evidence of the Big Bang
CMBR
Red shift
Element formation
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
Is the universe expanding or contracting
expanding
CBM stands for
Cosmic Microwave Background Radiation
If a star has a high luminosity, where would it be positioned on the H-R diagram?
Towards the top
Most distant galaxies show a RED SHIFT. This is considered EVIDENCE that the universe is ___.
expanding
Which weighs more, a ton of concrete or a ton of feathers?
Both weigh the same
You will find me in Mercury, Earth, Mars, and Jupiter, but not on Venus or Neptune. What am I? (Hint: It's a riddle not an element)
The letter 'R'
The Big Bang Theory is the most widely accepted theory about the origin of the universe. True or False?
True
What is the diagram the plots a star according to there temperature, mass, and luminosity
H-R Diagram
The remaining energy (radiation) from the big bang is called ________.
CMB -Cosmic Microwave Background
According to Redshift, the farther away a galaxy is, the _____________ it is moving away from earth.
faster
What is one piece of evidence of the Big Bang Theory?
Cosmic Microwave Background (CMB)
What will the suns next stage of life be?
Red Giant
If a star has a higher temperature (kelvin) on the H-R diagram where is it located?
Towards the left
What are the 3 main types of stars on a H-R diagram?
Main sequence
White dwarf
Red Giant
How is the "Big Bang" described?
As a period of rapid expansion.
Where are main sequence stars located on the H-R diagram?
Diagonal band from top left (hot, luminous) to bottom right (cool, faint)
What is the life-cycle of our star?
Nebulla-main sequence-red giant-white dwarf-black dwarf