pysical change
No. It only needs to pass through a magnetic field to become magnetized. It does not need to come into physical contact with the magnet producing that field. This is because the process of magnetization has to do with electromagnetic induction rather than physical contact. You can perform a simple experiment at home to prove this point. You'll need a bar magnet, a paper clip, and a thin sheet of paper. Place the paper between the magnet and the clip. Rub the clip against the paper on top of the magnet, and observe that the clip will still become magnetized even though it is not in physical contact with the magnet.
No, a magnet cannot pull through paper because paper is not a magnetic material and does not attract to magnets. Magnets can only attract materials that contain iron, nickel, or cobalt.
The number of paperclips a bar magnet can pick up will depend on the strength of the magnet and the size of the paperclips. In general, a typical bar magnet can pick up several small paperclips at once.
Certainly, as long as the paper clips are made of iron or steel. Most paper clips are made of polished or zinc-plated steel. Magnetism is a field that is not affected by water or any intervening matter unless that matter is also magnetic, or ferromagnetic.
You place the magnet under a piece of paper, and then sprinkle some iron filings on the paper. The iron filings will line up along the magnetic lines of force, which will show very clearly where the magnetic poles are.
Picking up a paper clip with a magnet is a physical change because no new substances are being created. The paper clip's position is simply being altered by the magnetic force.
Physical.
Tearing paper represents a physical and not a chemical change. Chemical bonds are not broken in this instance, but paper is physically separated (by force) from other paper.
It is a physical change because it is still a sheet of paper.
It is a physical change as the paper is still paper after you fold it.
Physical change
It is a physical change as the paper is still paper after you fold it.
Coloring on a white piece of paper is a physical change because the color change is reversible and does not alter the chemical composition of the paper. The paper remains paper even after coloring on it.
physical change physical change
Tearing paper is a physical change as you do not change what the parer is made of.
It is a physical change.
Physical