Big Bang Theory Flashcards
What is the name of the theory of the start of the universe?
The Big Bang Theory
What is Einstein equation?
E = m * c^2
E - energy
m - mass
c - speed of light
What does the Einstein equation describe?
Mass and energy are equivalent and are related by the speed of light squared.
When time = 0 what is the name of the universe at this moment?
A singularity
Is the big bang considered an explosion?
No, it is considered more a balloon inflating.
The length of time the universe stay as a singularity is called? How long does it last?
Planck Epoch, it lasts 1/(10^43) s
What is the Plank time?
The Plank time is the smallest measure of time which is 1(10^43) s.
After 1/(10^32) seconds, what is the size of the universe
The universe will reach the size of a grape fruit
How is the first expansion of the universe called
Inflationary Epoch
What is the Quark Epoch
Is the cooling of the universe where the plasma start to clump together. Electron, subatomic particles and the quark start to form.
What is the main building block of matter?
Quark
How many types of Quark exist?
6
Proton and Neutron are made up by how many quarks each?
3 each
How long does the Quark epoch last?
1/(10^6) s
What are Hadrons
is the name given to particles like protons and neutrons that are made up of quarks
What is the Hadron Epoch
Is after 1 second of the universe getting bigger, the time until then is called Hadron Epoch
What is Epoch of Nucleosynthesis
Is when neutrons and protons they are gravitationally attracted to each other and they being grouped, and from a nuclei
From what is the universe made up of
75% hydrogen
25% helium
What is a Photon and a Photon Epoch
A photon is a particle which transmits light.
Photon epoch is when Photons are trapped by free electrons
What is a Dark Epoch
- Is the time where there wasn’t any star,
- Nuclei and electrons bond into atoms
Why does nucleosynthesis end?
Because the average energy has fallen below the energy for fusion.
Order the following timelines in order from first to last to occur: nucleosynthesis, dark epoch, star formation, singularity and planck epoch, hadron epoch, inflationary epoch, quark epoch and photon epoch.
- Singularity and Plank epoch
- Inflationary Epoch
- Quark Epoch
- Hadron Epoch
- Nucleosynthesis
- Photon Epoch
- Dark Epoch
- Star Formation
