What is the role of gravity in the formation of our solar system?
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. Small particles drew together, bound by the force of gravity, into larger particles.
What are the roles of gravity and pressure in the formation of the solar system?
Solar nebula is a rotating cloud of gas and dust from which the sun and planets formed. The roles of gravity and pressure in the solar system is that the gravity pulls on all the particles in a nebula. Pressure is made up of collisions which cause particles to push away from each other.
Which statement best describes the role of gravity in maintaining the solar system?
The correct answer is D. Gravity pulled particles of dust and gas together to form planets. Explanation: Gravity is a force of attraction that acts in all universe, and makes objects with more matter attract objects with less matter.
What role did gravity play in the formation of the planets A gravitational forces brought together several moon sized bodies called planetesimals to form larger bodies that became planets b the gravity of the sun was too weak to hold it together and large pieces of the sun broke?
Gravitational forces brought together several moon-sized bodies, called planetesimals, to form larger bodies that became planets. The gravitational forces inside small asteroids pushed outward, causing the asteroids to swell to the size of planets.
What holds our solar system together?
The Sun is a yellow dwarf star, a hot ball of glowing gases at the heart of our solar system. Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest particles of debris – in its orbit.
How did our solar system begin to form?
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.
Which characteristics do all planets in our solar system share?
Which characteristics do all planets in our solar system share? All planets have an iron-rich, rocky core.
Which term best describes how the solar system formed?
Explanation: 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
How do we define the length of a year on Earth quizlet?
The length of a year is determined by Earth’s revolution around the sun. It takes about 365 days to revolve around the sun. Seasons change as Earth orbits the sun. When it is summer in the Northern Hemisphere it is winter in the Southern Hemisphere.
What is the largest geographic feature on Earth?
Largest Geographical Features in the World
|Largest Glacier||Lambert Glacier (Antarctica)|
|Largest River||Amazon (South America)|
|Largest Lake||Caspean Sea|
Which two earth layers are separated by the Moho boundary?
The Mohorovicic Discontinuity, commonly called the “Moho” is recognized as the boundary zone between Earth’s crust and the mantle. This boundary marks a change in seismic-wave velocity from the crust to the uppermost mantle within the (lithospheric) plate.
Which of the following has the deepest waters?
1. Mariana Trench. Located in the western Pacific Ocean, the Marina Trench is considered to be the deepest part of the Earth’s surface. In fact, it is the Challenger Deep in the Mariana Trench that is known as the deepest point
What does the term asthenosphere literally mean?
What is the asthenosphere composed of?
The Asthenosphere is made up of semi-plastic rock. Since the Lithosphere has a lower density, it floats on top of the Asthenosphere similar to the way in which an iceberg or a block of wood floats on water. The lower mantle below the Asthenosphere is more rigid and less plastic. Below the Mantle is the outer core.
Where is the asthenosphere found?
Asthenosphere, zone of Earth’s mantle lying beneath the lithosphere and believed to be much hotter and more fluid than the lithosphere. The asthenosphere extends from about 100 km (60 miles) to about 700 km (450 miles) below Earth’s surface.
What are the two types of oceanic plates?
structure of ocean basins …are two types of plates—oceanic and continental—which float on the surface of the Earth’s mantle, diverging, converging, or sliding against one another.
What is the largest minor plate?
For purposes of this list, a minor plate is any plate with an area less than 20 million km2 but greater than 1 million km2.
- Burma Plate – A minor tectonic plate in Southeast Asia – 1,100,000 km2
- New Hebrides Plate – Minor tectonic plate in the Pacific Ocean near Vanuatu – 1,100,000 km2
What are the 7 smaller plates?
You mention the Nazca plate as not being particularly “minor”, and indeed there is an intermediate grouping, normally said to comprise the Arabian Plate, Caribbean Plate, Cocos Plate, Juan de Fuca Plate, Nazca Plate, Philippine Sea Plate, and the Scotia Plate. This is easy to remember because they also number seven!