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Solar system and beyond > Big Bang Theory > Flashcards

Big Bang Theory Flashcards

1
Q

What is the name of the theory of the start of the universe?

A

The Big Bang Theory

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2
Q
A
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3
Q

What is Einstein equation?

A

E = m * c^2
E - energy
m - mass
c - speed of light

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4
Q

What does the Einstein equation describe?

A

Mass and energy are equivalent and are related by the speed of light squared.

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5
Q

When time = 0 what is the name of the universe at this moment?

A

A singularity

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6
Q

Is the big bang considered an explosion?

A

No, it is considered more a balloon inflating.

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7
Q

The length of time the universe stay as a singularity is called? How long does it last?

A

Planck Epoch, it lasts 1/(10^43) s

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8
Q

What is the Plank time?

A

The Plank time is the smallest measure of time which is 1(10^43) s.

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9
Q

After 1/(10^32) seconds, what is the size of the universe

A

The universe will reach the size of a grape fruit

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10
Q

How is the first expansion of the universe called

A

Inflationary Epoch

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11
Q

What is the Quark Epoch

A

Is the cooling of the universe where the plasma start to clump together. Electron, subatomic particles and the quark start to form.

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12
Q

What is the main building block of matter?

A

Quark

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13
Q

How many types of Quark exist?

A

6

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14
Q

Proton and Neutron are made up by how many quarks each?

A

3 each

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15
Q

How long does the Quark epoch last?

A

1/(10^6) s

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16
Q

What are Hadrons

A

is the name given to particles like protons and neutrons that are made up of quarks

17
Q

What is the Hadron Epoch

A

Is after 1 second of the universe getting bigger, the time until then is called Hadron Epoch

18
Q

What is Epoch of Nucleosynthesis

A

Is when neutrons and protons they are gravitationally attracted to each other and they being grouped, and from a nuclei

19
Q

From what is the universe made up of

A

75% hydrogen
25% helium

20
Q

What is a Photon and a Photon Epoch

A

A photon is a particle which transmits light.
Photon epoch is when Photons are trapped by free electrons

21
Q

What is a Dark Epoch

A
  1. Is the time where there wasn’t any star,
  2. Nuclei and electrons bond into atoms
22
Q

Why does nucleosynthesis end?

A

Because the average energy has fallen below the energy for fusion.

23
Q

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.

A
  1. Singularity and Plank epoch
  2. Inflationary Epoch
  3. Quark Epoch
  4. Hadron Epoch
  5. Nucleosynthesis
  6. Photon Epoch
  7. Dark Epoch
  8. Star Formation

Solar system and beyond (18 decks)

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