|Are there particles that are so small that they
are not affected by gravity?
|Question Date: 2005-05-13|
Gravity affects everything equally according to
its mass. Therefore, no: a small particle
experiences less force, but it needs less force to
move it around.
I believe that our current understanding of
Einstein's relativity is that all particles are
affected by gravity. In the theory, since the
presence of matter warps space and time, any
particle traveling through space is affected
whether it is large or small and whether it has
mass or does not.
Anything that has mass is affected by gravity. I
don't know of any particles that are so small that
they can not be affected by gravity.
you have any two bodies with mass there will be a
gravitational attraction between them. So if you
were holding, say, two pencils those two pencils
would have a gravitational force. The reason that
you do not notice this is because the earth is so
massive that everything on earth (no where near as
massive) feels the gravitation from the earth.
This is also the reason that earth has more
gravity than the moon --the earth is more massive
than the moon.
All particles that have mass are affected by
gravity. But for many small particles (called
Brownian particles) gravity is relatively
unimportant and other effects, such as those
related to temperature, push the particles around
in such a way that gravity seems not to affect them.
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