What happens to the gravitational energy of gas as it falls toward and eventually hits the accretion disk surrounding a protostar?

What happens to the gravitational energy of gas as it falls toward and eventually hits the accretion disk surrounding a protostar?

What happens to the gravitational energy of gas as it falls toward and eventually hits the accretion disk surrounding a protostar? It is converted into thermal energy, heating the disk.

How the solar system was 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 is a giant ball of hot gases that undergo nuclear fusion *?

Star. A giant ball of hot gases that undergo nuclear fusion, are born when nuclear fusion starts. Spiral Galaxy.

What are the chemical and physical properties of the solar system that any theory of its origin must explain?

What are the chemical and physical properties of the solar system that any theory of its origin must explain? The inner planets have high densities, moderate atmospheres, and a mostly rocky composition. The outer planets have low densities, thick atmospheres, and a composition of mostly hydrogen and helium.

What effect does gravity have on the particles in a nebula?

The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas. As these clumps get bigger and bigger, their gravity gets stronger and stronger. Eventually, the clump of dust and gas gets so big that it collapses from its own gravity.

What happened as the nebula became denser due to increasing gravitational force?

As the solar nebula shrinks in size, its density, temperature and shape all undergo dramatic changes. HEATING: The temperature of the solar nebula increases as it collapses. As the cloud shrinks, its gravitational potential energy is converted to the kinetic energy of individual gas particles falling inward.

How old is the world?

4.543 billion years
Earth/Age

Earth is estimated to be 4.54 billion years old, plus or minus about 50 million years. Scientists have scoured the Earth searching for the oldest rocks to radiometrically date. In northwestern Canada, they discovered rocks about 4.03 billion years old.

How old is the Milky Way?

13.51 billion years
Milky Way/Age
Astronomers believe that our own Milky Way galaxy is approximately 13.6 billion years old. The newest galaxy we know of formed only about 500 million years ago.

Why is it considered a big ball of gas?

A star is a big ball of gas. They are made of gases and dust. A star’s color tells us how hot or cold it is. The bluish stars are the hottest ones.

What is star made up of?

Stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores. Aside from our sun, the dots of light we see in the sky are all light-years from Earth.

What are the physical properties of the solar system?

Key Concepts:

• The solar system consists of the Sun, planets, dwarf planets, moons, comets, asteroids, meteoroids, dust, atomic particles, electromagnetic radiation, and magnetic fields.
• The Sun is a star that produces light and heat energy for the solar system through thermonuclear reactions in its interior.

What are 3 key properties of the solar system that must be accounted for when developing any model of its formation?

There are certain basic properties of the planetary system that any theory of its formation must explain. These may be summarized under three categories: motion constraints, chemical constraints, and age constraints.