Table of Contents
What causes planets to rotate?
What force cause them to rotate? There is no force that causes the planets to rotate. Most of the rotation comes about from the conservation of angular momentum. Anyway, the bottom line is that stars like the Sun spin from the original angular momentum that was there in the solar nebula from which it formed.
What makes a black hole spin?
Rotating black holes are formed in the gravitational collapse of a massive spinning star or from the collapse or collision of a collection of compact objects, stars, or gas with a total non-zero angular momentum. In late 2006, astronomers reported estimates of the spin rates of black holes in The Astrophysical Journal.
What is the process of rotation in space?
Rotation in Space. Rotation is a fundamental physical process throughout the Universe. So much is spinning, from planets and stars revolving on their axes, to whole spiral galaxies rotating around their centre.
How does the spin rate of an object depend on gravity?
All astronomical objects are formed by the way that gravity pulls matter together; inherent in this process is a dramatic decrease in size. If a cosmic body originates from anything that had the tiniest amount of rotational motion originally, this spin rate will only become greatly enhanced as it collapses down.
Is angular momentum the reason why objects continue to rotate?
Angular momentum is indeed the reason that objects continue to rotate. But they are originally set in motion by gravity. Bodies (including gas and dust in this context) move under the gravitational influence of a larger body – usually a much more massive body, like a black hole, or a star or a planet.
Why do cosmic bodies spin faster when they collapse?
If a cosmic body originates from anything that had the tiniest amount of rotational motion originally, this spin rate will only become greatly enhanced as it collapses down. Things speed up as they collapse under gravity.