Condensation of the Solar Nebula. The solar nebular contains
98% Hydrogen and Helium
(produced in the Big Bang), and 2% everything else (heavy elements, fusion products inside the stars).
What were the three major components of the solar nebula quizlet?
The solar nebula, like most things in the universe, was 98%
Hydrogen and Helium
, with small amounts of hydrogen compounds (1.4%) and traces of rock and heavy metals (0.6%). All elements heavier than Iron were created in supernova explosions of prior high-mass stars. You just studied 12 terms!
What are 3 pieces of evidence that support the solar nebula theory?
Comets, asteroids, and meteorites recovered on Earth
also provide a number of clues and evidence of Nebular-type development. And the motions of most solar system objects orbit and rotate in an organized fashion.
What was the main component of the original solar nebula?
About 4.6 billion years ago our solar system formed from a cloud of gas and dust which slowly contracted under the mutual gravity of all of its particles. The cloud was made largely of
hydrogen (H) with some helium (He) and small amounts of the remaining naturally occurring chemical elements
.
What are the three types of materials in the solar nebula?
The ingredients of the solar nebula fell into 4 categories based on their condensation temperatures:
metals, rocks, hydrogen compounds (water, methane, ammonia), and light gasses (hydrogen and helium)
. Distance of a planet from the Sun determined the temperature and thus the materials which condensed first.
What are the four major features of our solar system?
- smaller size and mass.
- higher density (rocks and metal)
- solid surface.
- few moons and rings.
- closer to the Sun.
What are the two major types of planets?
Planets are generally divided into two groups:
the terrestrial and the giant planets
. The terrestrial planets are the four inner planets: Mercury, Venus, Earth, and Mars. They are generally small in size (about the size of the Earth) and are predominantly rocky in composition.
What does the solar nebula theory explain?
The solar nebular hypothesis describes
the formation of our solar system from a nebula cloud made from a collection of dust and gas
. It is believed that the sun, planets, moons, and asteroids were formed around the same time around 4.5 billion years ago from a nebula.
Why did solar nebula heat up as it collapses?
3) Why did the solar nebula heat up as it collapsed? A)
Nuclear fusion occurring in the core of the protosun produced energy that heated the nebula
. … As the cloud shrank, its gravitational potential energy was converted to kinetic energy and then into thermal energy.
How are solar systems formed?
Formation. Our solar system formed about 4.5
billion years ago from a dense cloud of interstellar gas and dust
. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula – a spinning, swirling disk of material.
Is Earth in a nebula?
The Earth was formed from the nebula that produced the Solar System
. It is almost universally accepted that the Sun, the planets and their satellites, the asteroids, and the comets of the Oort ‘cloud’ grew from a cloud of gas and dust that contracted under its own gravity.
How was the solar nebula formed?
The Sun and the planets formed together, 4.6 billion years ago,
from a cloud of gas and dust
called the solar nebula. A shock wave from a nearby supernova explosion probably initiated the collapse of the solar nebula. The Sun formed in the center, and the planets formed in a thin disk orbiting around it.
What does the solar nebula contain?
Mostly the stuff of the cloud was
simple atoms of hydrogen and helium
, but it was peppered here and there by more complicated elements forged in the internal furnaces and death explosions of older stars. Even as a new sun took shape at the center of the cloud, disturbances formed farther out.
What are the most abundant materials in the solar nebula?
Hydrogen and helium gas
were the most abundant by far, comprising about 98% of the solar nebula.
What objects are in the Kuiper Belt?
There are
bits of rock and ice, comets and dwarf planets
in the Kuiper Belt. Besides Pluto and a bunch of comets, other interesting Kuiper Belt Objects are Eris, Makemake and Haumea. They are dwarf planets like Pluto.
Which comes first condensation or accretion?
Step 5:
Accretion
o After condensation, growth of solid particles occurs due to collisions. o Accretion is growth of grains through collisions – the real planet building process.
