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Gravity and Weight
Name: Candace
Status: student
Age: 10
Location: N/A
Country: N/A
Date: 2000-2001
Question:
Does gravity have weight?Does anything in the world does
not have weight?
Replies:
Weight is the term scientists use to describe how much force due to gravity
acts on an object.
The amount something weighs depends on two things, how much mass the object
has, and how strong the force of gravity is where the object is at.
Mass is a term that describes how much of an object there is. Every atom
has a certain mass, and the more atoms there are, the more mass an object
has. Every physical object has mass, and this mass is the same no matter
where it is.
Gravity is a force that pulls on things. Just like if you push something
across the table, your push is a force. There are many different types of
forces, but forces are not physical objects, they are more like actions.
Since forces are not objects, they do not have mass.
How much something weighs is determined by multiplying the mass of the
object by the force of gravity acting on the object.
Forces have no mass, so they never weigh anything. Things that don't have
mass, that arent' made up of atoms, don't weigh anything.
Also, objects in space don't weigh anything because there isn't any gravity.
So, even if an object is very large, if there isn't any gravity, it doesn't
weigh anything.
I hope this helps you understand a little better.
--Eric Tolman
No gravity does not have weight since it is the "cause" of weight. The only
thing i can think of off the top of my head that does not have weight is a
shadow.
Dr. Baldwin
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Update: June 2012
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