How does magnet get magnetic force in water?
356898
I don't think magnetic field varies a lot in another medium such as water.
617682
Gold and silver are not ferromagnetic materials and so do not have any magnetic properties. \n\nThe following explanation is from school for science.com  \n\n"Ferromagnetic materials are strongly attracted by a magnetic force. The elements iron (Fe), nickel (Ni), cobalt (Co) and gadolinium (Gd) are such materials. \n\nThe reasons these metals are strongly attracted are because their individual atoms have a slightly higher degree of magnetism due to their configuration of electrons, their atoms readily line up in the same magnetic direction, and the magnetic domains or groups of atoms line up more readily. \n\nIron and steel\nIron is the most common element associated with being attracted to to a magnet. Steel is also a ferromagnetic material. It is an alloy or combination of iron and several other metals, giving it greater hardness than iron, as well as other specialized properties. Because of its hardness, steel retains magnetism longer than iron.\n\nPermanent magnets\nAlloys of iron, nickel, cobalt, gadolinium and certain ceramic materials can become "permanent" magnets, such that they retain their magnetism for a long time."\n\nTry looking at the website for more information. Hope that helps!
1098861
a copper disc works also, When spinning fast the magnetic field is reflected back and the magnet will float off.
1041895
when the magnetic needle (a magnet) is places close to any metal, the magnetic field generated by the magnet will cut the metal and causes some electron to move inside the metal, which causes to metal to have different electric charge at each end. now because there is electric charge, it causes an electromagnetic field (EMF). this newly generated EMF interacts with the magnetic field created by the magentic needle and causes it to reflect.\nI remeber doing a physics experiment that illustrates this same effect. we had two small synlindrical metals, one of them was metal the other just normal metal. we put each one of them seperatly from one end of a metal tube and let it fall through to the other end, the metal usually gets from the other side quickly because it is falling free fall in the tube, however, when we put the metal inside it, it took much much longer time for the metal to fall through, the reason, as the magnit is moving (falling down) inside the tube, it is generating a current in the tube which in tern creats a magnetic field which opposes the magnetic field created by the magnet therefor the magnetic field creats a force that tried to repel from the falling magnet and it creates a force that tries to push the magnet up in the tube, of course the gravity is stronger and eventually the magnet comes out from the other end, but it didn't fall a free fall therefor it came out late..\n\nI hope this helps.
139513
Metals are attracted to magnets due to unbonded electron pairs that can be easily influenced by a magnetic field.\nFerrous metals (refering to Iron) can be easily influenced by a magnetic field, making them very magnetic.
605330
well, if an object is moving, there must be some physical force applied to it - magnetic field, static electicity, pull from a sting, air pressure from a fan.
161570
Metals become magnetized more easily than other materials because of the way in which their molecules bind to each other.  The positive nucleii align while the surrounding electrons (negatively charged) float around in a "sea of electrons."  Because magnetism is simply the attraction of positive charge to negative, anything can become magnetic, though it may take more work to break the electrons free of their orbits around the central positively charged nucleus.  The strength of magnetism is directly related to the amount of energy it takes to bring the electrons away from their positions around the nucleus.  In metals' case, it takes little.  In an MRI, it is actually water that is magnetized.
285366
well if by terminal you mean, like a hub.  it would probably be due to the larger number of electrons inside the valence shell, not the valence shell itself. the ones give them their strong electro negetivity,combined with the fact that as the atom gets larger there is more distance between the center(+) and the surrounding (-).  these cause coordinate bonds, basicly like static electricity attracts things. the bonds are weaker than covalent or ionic cause the moleceles already stable(this is where the valence shell comes in, stability), a good example of this example is take a hard natural magnet and try sticking a piece of steel note the force that is required to seperate the two. then exert that same amount of force toward breaking the magnet itself.  you'll surely notice that the bonds in the magnet are far stronger than the bonds that the magnet makes with other substances.  ok do you see now how a strong negtive force within a atom has the ability to attract weaker positively charged atoms/molecules?  i noticed one answer had the valence shell mentioned, and true they have a valence configuration which has a deficency of one electron.  this is a factor ivolved in the formation of ionic and covalent bonds.  the coordenate bonds are more like magnets attracting one another. the difference in electro negetivity is what determines the type of bond techniclly.  the ionic bonds are the strongest. now the covalent bonds actually share electrons and these bonds are not as strong, and the coordenate bonds are weaker still.  there are other even weaker bonds such as hydrogen bonds (i.e. in water the hydrogen bonds account for the face that water expands right before it freezes). these bonds are the result of the attraction of the positive charge that is present with the electron of the hydrogen affects the magnetic field within the oxygen atom causing a slightly more negetive charge in a 180 deg. position relevent to the hydrogen. anyway i had a little more time tonight.
883128
Use a magnet. Iron is attracted to it, lead is not.
179510
The lines of force produced by the electrons in a magnetic field are like the wake produced by a boat. When that wake encounters another boat it will push it along in the water. Likewise when lines of force in a moving magnetic field encounter electrons it will push them. So the magnetic field produced by current flow in a wire can induce current flow in another wire.
566155
it's to do with the magnetic field of the water and or the geology. I did gold exploration for several years and on weekends we'd help the local farmers source underground water. And we used both a magnetometer to chec k for magnetic anonamalies amd then walked exactly the same path with a diving rod, a piece of fence wire and the rod would move at exactly the same places we found magnetic kicks with the magnetometer.
991087
Depends, if the attraction force of the magnet is bigger then the force of friction of the disc with the oil combined with the force necessary to break the surface tension. The weight and size of the disk are also very important.
95223
forcing water away because they are polar molecules
156716
in reality, it is the surface tension (adherance of molecules to one another) and density of the fluid\nbecause the question does not state that the object is suspened in the fluid\n\notherwise the force acting to keep an object buoyant would need to equate and thus counteract the objects weight (which is the force of gravity pulling said object down)\n\nmass X volume = density which is a factor in determining a force acting upon the object; a force working to cause the object to disperse within the less dense fluid or conversely the fluid to compress and colapse the object\n\nSo the author of the question given is expecting the answer: weight
1045884
http://en.wikipedia.org/wiki/Magnets\n\ngo there if u wanna find out, i only know simple version...
153188
When you run amps of current through conductive water, such as salt sea water, the water will interact with a magnet.  The caterpillar drive which pumps water through a tube with a an electric field through the water and a moving magentic field to create a jet of water is actually possible.  The water, however, is only acted on by a magnet as long as the electric current is flowing.  When the electric current stops, the water is disorganized and is unaffected by a magnetic field.  (Water molecules, however, are slightly polar, being slightly positive on the 2 hydrogen on the end, and slightly negative on the oxygen end. Note that this is a STATIC electric field, not a magnetic field!!!!)\n\nForce=ExB.  The electric field crossed with a magnetic field creates force.  Similarly an copper wire is not a magenet either.  Yet when an electric current is flowing through it, and it intersects a changing magnetic field, it will create a force on the wire.  Also, a changing electric field in a wire will induce a changing magnetic field in a magnetic material, like iron.  \n\nBoy I hope I haven't muddied the waters;  let me summarize: water CAN support an electric field through it, and hence be acted on by a magnetic field.  Changing the electric field in water can induce a changing magnetic field in a magnetic material.  Water, in itself, IS NOT, and CANNOT be magnetic, ever.  If you put iron particles in it, the iron particles will be magnetic.  Other metallic salts, sodium, calcium and the like will NOT make the water magnetic, only conductive.
1072620
Actually it is not magnetic but paramagnetic. That is that it is attracted by the magnetic field but does not remain magnetic once it leaves the field. Gaseous oxygen is paramagnetic also but is moving too fast to be affected by the magnets. The reason that it is paramagnetic is because the oxygen molecule has two unpaired electrons. Electrons not only go around the atom in their orbitals, they also spin, which creates a magnetic field. Unpaired electrons spin in the same direction as each other, which increases the magnetic field effect. When the electron in an orbital become paired with another electron in that orbital, the new electron spins in the opposite direction and this cancels the effect of the first electron. Note that according to Valence Shell Electron Pair Repulsion theory (VSEPR), O2 has no unpaired electrons but according to Molecular Orbital (MO) theory it does have unpaired electrons. Since liquid O2 does stick to a magnet, MO theory is better at explaining the behavior.