How can Gravity be called weak its pulling every planets toward the Sun except Pluto that is not a planet?

Question

Does a proton have such a force of interaction that it can pull pluto which is not a planet?

Answer 1

Gravity is the weakest (notice the superlative use of the word, not an absolute usage) of the four fundamental forces of nature.

ALL mass in the universe is gravitationally attracted to ALL other mass in the universe. Just because something is / is not a planet makes absolute no difference to "the universe".
Anything and everything with mass is affected by gravity. The only way to totally escape gravity would be to travel an infinite distance away from all masses in the universe, which is impossible.

Just because gravity might seem like such a "powerful" force (and I use that term loosely), compared to the other forces of the universe, it is quite weak.
Take the next strongest force, the electromagnetic force...this force is SEVERAL orders of magnitude (powers of 10) stronger than gravity, this is why you can often times overcome an objects weight (gravitational force) by picking it up with a charged object.

A proton is affected by gravity. But a proton is electrically charged so it is also affected by the electromagnetic force (which is much stronger), so it is often acceptable to ignore the proton's gravitational force and focus on only its electromagnetic force (or __ nuclear force, depending on the case).

On the whole, however, as strong as EM forces are, the universe is neutrally charged, so we might not see the effects as often as we see every day with gravity.

Proton (on Earth) and Pluto do, indeed, gravitationally attract each other; however, it is negligible due to the mass of a proton and the extreme distance between the two objects.

Answer 2

Gravity is the lone force which does not have an opposite. The magnetic force, for instance has a 'North' and a 'South'. Other forces will attract or repel based on these two opposite component. Gravity alone has only an attracting component.

For the second part of your question...yes, a proton has a pull even on Pluto. The gravitational force has two elements. These are the mass and the distance of each body. So a proton say in space between Earth and the moon is influenced by Pluto - just by an infinitesimally small amount.

Answer 3

Week (or strong) is a relative term. For example, the force between a proton and an electron in an atom is much stronger in comparison with the force due to gravity.
The sun and the planets are massive bodies without any significant residual charge. Certainly gravity is the only force that acts between them and is strong enough to keep the planets going round the sun. Pluto, whether it is called a planet or not, is no exception.
So gravity is week in certain circumstances but not in all.

Answer 4

Gravity is inherently one of the weakest forces but it has two large things in it's favour:

1) it grows with mass. The more massive objects have more gravitational pull, so the Sun, being by far the most massive object in the solar system has a great deal of muscle behind it

2)It is constant. All the other forces that may be stronger such as chemical bonds, elctromagnetism and such are not constant, not do they continuously affect all things directly. You are constantly and directly forced down by gravity. Your own muscles are stronger than grvity and you can use them to defy it by jumping away from the earth. Consider the size of the earth compared to your muscles and you can realise how weak gravity is. But, you come back down, because your muscles cannot apply this force constantly. Other forces affect you but many are not going against you constantly, nor directly. In answer to your question it is in theory possible to create an electromagnet, or some other force that isn't gravitaitonal to pull planets towards you. But first it has to be stronger than the sun. It would not have to be as big as the sun because electromagnetism is comparitively stronger than gravity, so to create equal force requires less. And it would not be able to be switched off, ever, because doing so would allow gravity which is unrelenting to gain a hold again.

So yes there are many forces in the universe that are stronger than gravity, but none apply so greatly to massive objects nor work so constantly against everything as gravity and that is why it is the driving force in massive objects.

Answer 5

Gravity is only weak when compared to the other three forces on a similar scale. At the subatomic scale, gravity is so weak that it is almost (but not quite) nonexistent whereas the power of the strong and weak nuclear forces are immense. But whereas gravity has no limit to its range, the strong and weak nuclear forces are limited by range and therefore do not act over large distances.

The electromagnetic force likewise has an unlimited range, but the electromagnetic force is a victim of its own power. Compared to the EM force, gravity is still quite weak, but, again gravity gains power as mass is added. The EM force also gains power as like charges are added, but, unfortunately, the stronger the EM force becomes, the more likely it is that opposite charges will be attracted, and as those opposite charges are added to the EM source, the force is reduced because it becomes more neutral.

In the end, gravity has two excellent allies. It has an unlimited range, and there is nothing to neutralize the force (except possibly antimatter which is immensly rare). And when enough mass is accumulated in one place. Gravity, the weakest of the forces, conquers all.

Answer 6

Your reasoning is flawed here.

Gravity is considered "weak" only in the boundaries of a non-Hydrogen nucleas. Consider a sodium nucleas, with 11 protons and 12 neutrons. The force exerted in that nucleas on all 22 other particles by the gravity (and therefore mass) of one of the protons is very VERY VERY small compared to the forces of repulsion between the other protons. Hence, it can NOT be that gravity is the force that is holding the nucleas together. Hence, it is called the "weak" nuclear force. Gravity is present in the nucleas, it is just insignificant.

Answer 7

Just take a pin and drop it it will drop to ground. Then take a small magnet and hold it above the pin. The pin will be pulled up by the magnet and the magnet will hold it against the gravity.

This is a tug of war between the big brother earth and the small magnet. Who wins. The magnet. So now you know why the gravity is the weak force.

Answer 8

Weak is relative. Gravity is not weak but is weaker relative to other forces like electro-magnetic forces.

Imagine this. Someone jumps off a 10 story building. Gravity pulls them towards the ground, and in a while (several seconds) they hit. What they have encountered is the electro-magnetic force, and it stops them immediately.

Answer 9

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Answer 10

Gravity is far weaker than electric or magnetic force.