100%What percentage of the spinning disc created the sun?A.

This is the basis of the Solar Nebula Hypothesis – that from a cloud of dust and gas, our Solar System formed to what we see today: a Sun, four rocky terrestrial planets, an asteroid belt, four “gas-giant” planets, Pluto and the other Kuiper Belt Objects, and the Oort cloud (and the variety of debris within).

There are no direct methods to observe the formational process of theSolar System

One of the major principles of the arousal-performance relationship is the Inverted-U hypothesis (Baechle and Earle 2008, 168), developed by Yerkes and Dodson.

What role do human beings play in this hypothesis.

The Orion Nebula, an interstellar cloud in which starsystems and possibly planets are forming.

Introduction: Based upon my personal experience visiting Basingstoke both before and after the construction of Festival Place, I predict that the hypothesis will be false....

The empirical evidence is against the nebula hypothesis

They coalesced into larger objects, formingclumps of up to a few kilometers across in a few million years, asmall time compared to the age of the solar system .

The planets have only 1 % of the mass of solar system

All of the above

What makes up the solar system?

Gas and dust particles in the disc condensed forming ice and rock
Ice and rock particles continued to collide and combine into large planetesimals
Planetesimals compressed and collided to form the planets and moons

The Formation of the Planets

Within the center of the disc:
Compression and Friction
Temperature increase
Sun “turns on”
Nuclear fusion began
Hydrogen fusion

The Formation of the Sun

The Solar System formed from a nebula as gas and dust came together to form the sun and planets

The Nebular Hypothesis
The explanation for the formation of the solar system
The Solar System formed ~ 4.6 billion years ago
Evidence from:
Meteorites (4.5-4.6 billion years old)
Moon rocks (~4.0 billion years old)
Earth Rocks(~3.9 billion years old)
Sedimentary minerals

The Nebular Hypothesis
Inner – Mercury, Venus, Earth, Mars
Outer – Jupiter, Saturn, Uranus, Neptune
Moons (satellites)
Dwarf planets

What makes up the Solar System?

The Nebular Hypothesis:
The Formation of the Solar System

Nebular hypothesis - Infogalactic: the planetary …

1 trillion years

How old is the solar system?

Solar winds blew excess gas toward the outer part of the solar system*
This is what made the
Inner planets rocky
Outer planets gas

The Formation of the Planets

An external force (like a supernova) caused the egg of the nebula to spin counterclockwise
Force that pulls two objects towards one another
Pulls the cloud inward creating a flattened disc
The Conservation of Angular Momentum
As the disc begins to flatten it begins to spin faster
Think of a ice skater – she will go faster when she brings her arms closer

The Big Spin

Eggs in nebula are where stars are born

All stars, including our sun come from nebula

Cloud of gas and dust
Remains of old stars that have exploded (supernovas)
Contain all of the natural elements
Concentrated part of the nebula where stars are born

The Beginning

Planets, comets, Asteroids, Moons

90% of the material was in the center

10% of the material was in the disc surrounding it

The Disc


Where does the sun get its energy?
How did our solar system form?
Fill out your Confirming to Extending Grid...
*The Sun ignites nuclear fusion in its core on and generates a strong outward flow of material (an extreme Solar Wind).

Nebular Hypothesis Flashcards | Quizlet

According to their hypothesis, as arousal levels increase, so do the performance levels of the individual, but only to certain point (known as the ‘optimal’ point)....