What happens when solar nebula contracts?
Under the influence of its own gravity, the nebula contracts. As it contracts, it spins faster and faster, much like an ice skater who pulls in her arms. This effect is known as conservation of angular momentum. … The swirling mass destined to become our solar system is usually referred to as the solar nebula.
What shape is formed due to the contraction of the nebula?
Because of the competing forces associated with gravity, gas pressure, and rotation, the contracting nebula begins to flatten into a spinning flattened shape with a bulge at the center, as illustrated in the following figure.
Why did the nebula spin faster as they shrink or collapse?
As a ball of dust and gas contracts under its own gravity, it begins to shrink and its core begins collapsing faster and faster. This causes the core to heat up and to rotate.
What causes a nebula to spin?
Shock waves from the explosion compressed the cloud of gas and dust. Compression made the cloud collapse, as gravity pulled the gas and dust together, forming a solar nebula. Just like a dancer that spins faster as she pulls in her arms, the cloud began to spin as it collapsed.
What happens when a nebula collapses?
Nebulae are made of dust and gases—mostly hydrogen and helium. … Eventually, the clump of dust and gas gets so big that it collapses from its own gravity. The collapse causes the material at the center of the cloud to heat up-and this hot core is the beginning of a star.
What happened as the nebula became denser?
The solar nebula became hottest near the center where much of the mass was collected to form the protosun(the cloud of gas that became Sun). At some point the central temperature rose to 10 million K. … As the temperature and density increased toward the center, so did the pressure causing a net force pointing outward.
What happens once the nebula begins to spin?
In the nebula is hydrogen gas which is pulled together by gravity and starts to spin faster. Over millions of years, more hydrogen gas is pulled into the spinning cloud. … The tremendous heat given off by the nuclear fusion process causes the gas to glow creating a protostar.
Does the nebula rotate?
As the nebula collapses, clumps of gas collide & merge. Their random velocities average out into the nebula’s direction of rotation. The spinning nebula assumes the shape of a disk.
When a nebula collapses inward which processes occur?
4. As the nebula “falls” inward, gravitational potential energy is converted to heat. In the absence of a net torque, the total angular momentum of a system remains constant. As the nebula collapses, clumps of gas collide & merge.
Why did the solar nebula contract?
The core accretion model
Approximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula. With the rise of the sun, the remaining material began to clump together.
What will happen to a nebula that never starts the process of nuclear fusion?
burning helium in its core and hydrogen in a shell. … has a stable, inert carbon core and essentially no hydrogen or helium. A supernova occurs when: a massive star burns through successively heavier elements until it has an iron core, which will not release energy from fusion.
Why does the nebula flatten out into a rotating disk?
Conservation of angular momentum causes the rotation to increase as the nebula radius decreases. This rotation causes the cloud to flatten out—much like forming a flat pizza out of dough—and take the form of a disk.
How did the solar system form from a nebula?
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.
How does the solar nebula theory explain?
Currently the best theory is the Nebular Theory . This states that the solar system developed out of an interstellar cloud of dust and gas, called a nebula . … The Nebular Theory would have started with a cloud of gas and dust, most likely left over from a previous supernova.
When the planetary nebula gravitationally contracted to form our solar system what caused the central region to rotate faster and flatten into a plane?
When a planetary nebula gravitationally contracted to form our solar system what caused the central region to rotate faster and flatten into a plane? The conservation of angular momentum. Jupiter rotates once every 10 hours, more than twice as fast as the Earth.
What happened to the particles that did not become planets in the solar system?
Leftover debris that never became planets congregated in regions such as the Asteroid Belt, Kuiper Belt, and Oort Cloud. … Solar wind from the Sun created the heliosphere and swept away the remaining gas and dust from the protoplanetary disc into interstellar space, ending the planetary formation process.
How long did it take for Earth to become roughly the size and shape it is today?
According to nebular theory, planetesimals formed by accretion, with the primordial Earth being estimated as likely taking anywhere from 70 to 100 million years to form. Estimates of the age of the Moon range from 4.5 Ga to significantly younger.
Which planet was formed from the light gases of the outer solar nebula?
Unlike most gas giants, Uranus has a core that is rocky rather than gaseous. The core likely formed first, and then gathered up the hydrogen, helium and methane that make up the planet’s atmosphere.