Creation Of The Universe And Theories Flashcards

1
Q

Is a cosmological model that explains how the universe began

Suggest that the universe started its expansion 13.8 billion years ago

Not a literal explosion

A

big bang theory

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2
Q

Matter dilutes as the universe expands

A

Raisin bread model big bang theory

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3
Q

Predicted to be the core of a black hole high temp and density

Intense heat resulted to formation of matter and antimatter particles were destroyed every time they collided with each other

A

SINGULARITY

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4
Q

Is the formation of elements, presence of these elements led to the formation of stars and galaxies
Led to plantes comets and asteroids

A

NUCLEOSYNTHESIS

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5
Q

Proposes that the universe has always been expanding

New stars and galaxies formed at the same rate old ones become un observable due to distance and recession velocity

A

THE STEADY STATE THEORY

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6
Q

Matter is constantly created as the universe expands

A

Steady State Theory

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7
Q

Matter is constantly created as the universe expands

A

Steady State Theory

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8
Q

Proponents of the steady state theory

A

Hermann Bondi (1919-2005)
Thomas Gold (1920-2004)
Fred Hoyle (1915-2001)

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9
Q

Also known as the Pulsating Theory
Proposes that the universe is explaining and will contract once all the energy of the big bang has been used up

Will expand again once approaches point of singularity

A

OSCILLATING UNIVERSE THEORY

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10
Q

Is a combination of big crunch and big bang

A

Oscillating universe theory

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11
Q

Occurs when the universe expands and eventually reverses, then collapses causing the formation of a singularity results to big bang and new universe

A

THE BIG CRUNCH

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12
Q

Proponent ofnoscillating universe theory

A

Richard Tolman(1881-1948)

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13
Q

According to this theory the solar system originated from a nebula

Was widely accepted view of formation of the solar system some 4.5 billion years ago

A

THE NEBULAR THEORY

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14
Q

Proponent of the nebular theory

A

Immanuel Kant

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15
Q

Proposes that the planets were formed from the material ejected from the sun during and encounter with another celestial object such as another statt

A

THE ENCOUNTER THEORY

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16
Q

Is an object formed from dust rock and other materials

Infinitesimal indicates an object too small to see or measure

Describe how earth started from a solid mass smaller than its present size

A

PLANETESIMAL THEORY

17
Q

Proponents of the planetesimal theory

A

Thomas Chrowder Chamberlin (1843-1928)
Forest Ray Moulton (1872-1952)

18
Q

Explains that the solar systems formed as a result of a near collision between a passing stat and the sun

Proposes that the hot gas from the passing star condensed into planets instead of planetesimals

A

THE TIDAL THEORY

19
Q

Theories on the origin of the solar system

A

The nebular system
The encounter theory

20
Q

Theories on the Origin on the Origin of the Universe

A

The Big Bang Theory
The Oscillating Universe Theory
The Steady State Theory