- Condensation.
- Accretion.
What are the 6 steps of the nebular theory?
- Formation begins and gravity causes the nebula to contract. ...
- gravity pulls in the mass of the nebula in, then starts spinning, then the disk forms (planetary, solar disk); gravitational energy gets converted to thermal energy (heat); gets so hot, then nuclear fusion, then the sun is born.
What are the 4 steps of the nebular hypothesis?
- step one(4) -The solar nebula consisted of. -hydrogen,
- step two(2) -A disturbance.
- step three(2) -The solar nebula assumed a flat, disk shape.
- step four(2) -Inner planets began to form from metallic.
- step five(2) -Larger outer planets began forming from fragments.
Why is the nebular hypothesis accepted?
The nebular theory holds that the solar system formed from the gravitational collapse of a great, giant cloud of gas and dust . This theory is widely accepted by scientists today because of its success in explaining the major characteristics of our solar system.
What is the order of the nebular hypothesis *?
According to this theory, the Sun and all the planets of our Solar System began as a giant cloud of molecular gas and dust . Then, about 4.57 billion years ago, something happened that caused the cloud to collapse.
What is the nebular theory steps?
The Nebular Theory would have started with a cloud of gas and dust, most likely left over from a previous supernova. The nebula started to collapse and condense ; this collapsing process continued for some time. The Sun-to-be collected most of the mass in the nebula’s center, forming a Protostar .
What is Laplace nebular theory?
Nebular Hypothesis, an explanation of how the solar system was formed , proposed by Pierre Simon de Laplace in 1796. Laplace said that the material from which the solar system was formed was once a slowly rotating cloud, or nebula, of extremely hot gas. ... The most serious concerns the speed of rotation of the sun.
How many steps are in the nebular theory?
7 Steps of the Nebular Theory.
What are the five steps of the nebular theory?
- step one(4) -The solar nebula consisted of. -hydrogen,
- step two(2) -A disturbance.
- step three(2) -The solar nebula assumed a flat, disk shape.
- step four(2) -Inner planets began to form from metallic.
- step five(2) -Larger outer planets began forming from fragments.
Which planet has the shortest day?
Jupiter is the fastest spinning planet in our Solar System, rotating on average once in just under 10 hours. That is very fast, especially considering how large Jupiter is. This means that Jupiter has the shortest day of all the planets in the Solar System.
What is a Protosun?
: protostar especially : the gaseous cloud that underwent gravitational collapse to form the sun .
What is the evidence of nebular theory?
What Evidence do we have of a Nebular Theory-type development? We have observed discs of gas and dust around other stars . We can also see evidence of stars and planets forming in clouds of gas and dust; young planet systems in the making are called Proplyds.
What gases are in a nebula?
The roots of the word come from Latin nebula, which means a “mist, vapor, fog, smoke, exhalation.” Nebulae are made up of dust, basic elements such as hydrogen and other ionized gases . They either form through clouds of cold interstellar gas and dust or through the aftermath of a supernova.
What does the capture theory explain?
Capture theory suggests that the Moon was a wandering body (like an asteroid) that formed elsewhere in the solar system and was captured by Earth’s gravity as it passed nearby . ... It proposes that the Moon formed during a collision between the Earth and another small planet, about the size of Mars.
What supports the nebular theory?
The types of objects found within the solar system provide significant clues and evidence to support the Nebular Theory. ... Comets, asteroids, and meteorites recovered on Earth also provide a number of clues and evidence of Nebular-type development.
How was the solar system formed step by step?
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.
