Report, edit, etc...Posted by LegacyWeapon on 2004-12-01 at 21:30:00
The question is: Is there friction possible without gravity? Like if nothing had gravity affecting it, will friction still be possible?
My friend thinks not
but I think there is.
My friend thinks not
but I think there is.
Report, edit, etc...Posted by DT_Battlekruser on 2004-12-01 at 21:41:23
In a way, yes. Your friend is thinking of a situation in which no natural forces act on an object. Aslong as there is electromagnetic forces, there can be friction. However, the friction will be so small you will be barely able to detect it. However, if you are on an accelerating object, artificial gravity is being created and thus friction.
Report, edit, etc...Posted by Staredit.Net Essence on 2004-12-01 at 21:42:01
without gravity, friction would be lessened, although it would not be depleted.
for example:
there is a ball floating through the air, in a normal Earth environment, there is gas which is constantly moving throughout the air, when the ball comes in conteact with the gas, it will slowly stop moving, it may take a while but it is possible
Conclusion: Friction exists without gravity.
for example:
there is a ball floating through the air, in a normal Earth environment, there is gas which is constantly moving throughout the air, when the ball comes in conteact with the gas, it will slowly stop moving, it may take a while but it is possible
Conclusion: Friction exists without gravity.
Report, edit, etc...Posted by CheeZe on 2004-12-01 at 22:07:36
but that is friction against the air. and air is there because of gravity. If you put the ball in space, push it, it will fly forever until it hits something of course.
Report, edit, etc...Posted by SaLaCiouS(U) on 2004-12-01 at 22:15:25
Friction doesn't have anything to do with gravity.
Report, edit, etc...Posted by CheeZe on 2004-12-01 at 22:25:12
Friction is caused by gravity.
Lets say you have a ball that is rolling. It stops because of friction. What causes friction? Gravity that pulls the ball down, which is against what it was doing: moving forward.
This is why in space, pushing a ball will make it go forward forever since there is no gravity. Of course, if it gets close to a star or something, it will get caught in it's gravititational pull.
Is movement in space always constant?
EDIT: Yes, of course, any force that can act on the object will make friction. But right now, the default is gravity
Lets say you have a ball that is rolling. It stops because of friction. What causes friction? Gravity that pulls the ball down, which is against what it was doing: moving forward.
This is why in space, pushing a ball will make it go forward forever since there is no gravity. Of course, if it gets close to a star or something, it will get caught in it's gravititational pull.
Is movement in space always constant?
EDIT: Yes, of course, any force that can act on the object will make friction. But right now, the default is gravity
Report, edit, etc...Posted by DT_Battlekruser on 2004-12-01 at 22:26:41
Friction is not caused by gravity specifically. As long as you have forces set up in a way that would be like gravity, then there is friction. Gravity doesn't have to be the force.
Report, edit, etc...Posted by Staredit.Net Essence on 2004-12-01 at 22:32:24
two or more forces colliding causes friction, pretty much anywhere you can imagine, there is matter. even in space there are ice particles and alien bacteria floating around, after long enough, another object floating in space will collide with the ball causing it to change direction or speed, if that collision had no friction, they would be non-existant to one another, meaning the object would pretty much have to pass through the ball while not disturbing is continuum.
Report, edit, etc...Posted by EzDay281 on 2004-12-01 at 23:19:20
Finaly, someone states that.
Also, the ball would not continue forever even NOT counting ice particles etc, because gravity from the planets still effects it, just nowhere near as much.
Though, that's not really the point, since we're talking about friction.
Cheeze, if I were to go into space with you, and throw you in some direction, then why wouldn't you just slip through my hand?
With no friction, you'd just slide across my hand, and I'd make you spin, but you'd hardly have any movement.
But you CAN throw things in space. Because of friction. And in such area, gravity is enough lessened that if friction is because of gravity, then the friction would be too low.
Also, the ball would not continue forever even NOT counting ice particles etc, because gravity from the planets still effects it, just nowhere near as much.
Though, that's not really the point, since we're talking about friction.
Cheeze, if I were to go into space with you, and throw you in some direction, then why wouldn't you just slip through my hand?
With no friction, you'd just slide across my hand, and I'd make you spin, but you'd hardly have any movement.
But you CAN throw things in space. Because of friction. And in such area, gravity is enough lessened that if friction is because of gravity, then the friction would be too low.
Report, edit, etc...Posted by darthchung02 on 2004-12-02 at 15:43:29
Friction is still possible without gravity. Gravity is a force that pulls us to the ground. Friction is the ability for objects to hold on to eachother to generate a desired force. For Example...rubbing your hands is friction....does it require gravity? NO! Friction and gravity are not related in that way.
Report, edit, etc...Posted by DrunkenWrestler on 2004-12-02 at 18:52:32
Yes, there can be friction without gravity, and yes, gravity in a way does cause friction.
In space, two bodies in motion will continue to be in motion unless acted upon by each other. When they collide, their surfaces will hit each other, causing friction.
Gravity in a way causes friction. The more something weighs, the more friction will be pushing against you when you try to push it.
It's not precise to say gravity causes friction though, it's the weight. I can also take a stack of bricks and hold it sideways (shown below) and squeze them so hard that I increase the weight (if you turn the coordinate system 90 degrees clockwise, so that the force of gravity acts on the X axis), therefore increasing friction so much that the middle one will not fall.
LH)[][][][][](RH
Contrary to popular belief, the surface area contacting the ground has no affect on friction. Whether the surface area is 50x50, or 2x2, if they both weight the same (and are are on the same type of surface), they will both have the same amount of friction.
I don't know if this helped or not. I'm bad at explaining things.
In space, two bodies in motion will continue to be in motion unless acted upon by each other. When they collide, their surfaces will hit each other, causing friction.
Gravity in a way causes friction. The more something weighs, the more friction will be pushing against you when you try to push it.
It's not precise to say gravity causes friction though, it's the weight. I can also take a stack of bricks and hold it sideways (shown below) and squeze them so hard that I increase the weight (if you turn the coordinate system 90 degrees clockwise, so that the force of gravity acts on the X axis), therefore increasing friction so much that the middle one will not fall.
LH)[][][][][](RH
Contrary to popular belief, the surface area contacting the ground has no affect on friction. Whether the surface area is 50x50, or 2x2, if they both weight the same (and are are on the same type of surface), they will both have the same amount of friction.
I don't know if this helped or not. I'm bad at explaining things.
Report, edit, etc...Posted by NeoNightmareX on 2004-12-03 at 15:08:10
friction would still happen, like if u rub your arm against something rough with no gravity, it will be harder to rub against than something smooth, and its just on somethings, there is always friction, just less of it without gravity
Report, edit, etc...Posted by Mr.Asdf on 2004-12-14 at 18:45:42
friction is still posible :\
Report, edit, etc...Posted by EzDay281 on 2004-12-14 at 19:26:13
A: Bump
B: Spam
C: Old topic which I don't think should be in Serious Discussion to which the question's answer has already been given
"there is always friction, just less of it without gravity"
It depends on circumstances...
If something is suspended, while something else isn't suspended, then friction will be LOWERED due to decreased force between the objects.
B: Spam
C: Old topic which I don't think should be in Serious Discussion to which the question's answer has already been given
"there is always friction, just less of it without gravity"
It depends on circumstances...
If something is suspended, while something else isn't suspended, then friction will be LOWERED due to decreased force between the objects.
Report, edit, etc...Posted by LegacyWeapon on 2004-12-14 at 21:52:54
Yes, thanks everyone for answering my question. This is exactly what I thought. My friend is so stupid v_v.
"Friction exists without gravity."
>Topic Locked.
"Friction exists without gravity."
>Topic Locked.