There are many refrigerators these days (especially stainless steel ones) which are not magnetic. That might be the source of your problem.
if a refrigerator magnet cant hold a piece of paper against a refrigerator, the forces acting on the magnet must be what?
Because it is made up of iron and steel!
In theory, it could. Larger magnets have a stronger and wider magnetic field. If we are talking about refrigerator magnets, then one would need a lot of them. Additional Answer If the refrigerator is magnetic and the magnet you are using is sufficiently powerful, it WILL hold your science book on the refrigerator. The issue you are having is based on the size of your magnet relative to the size of your science book. There are trains in Germany and Japan called Maglevs which float above the ground using sufficiently powerful magnets.
Because, beneath the paint or finish of the door, it is made of ferrous metal and magnets stick to anything like that, as they contain iron.
A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. An everyday example is a refrigerator magnet used to hold notes on a refrigerator door. Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include iron, nickel, cobalt, some alloys of rare earth metals, and some naturally occurring minerals such as lodestone.
it depend on the strength of magnet. if i had a gauss measurement i could tell you.
Have a magnet underneath it with opposite sides facing each other or hold a magnet over the magnet you are trying to levitate. Opposite sides facing each other
Everything they use a regular refrigerator for. Subzero is a type of refrigerator, but it is also a brand of refrigerator. They are basically what they sound like, a refrigerator/freezer that reaches and hold subzero temperatures.
A paperclip is commonly used to hold papers together. It is a small, bent piece of wire that can securely attach and organize documents.
Hold the magnet on the cap over the polish immediately after you paint the final coat of magnetic polish. The magnet won't work if the polish isn't wet hold the magnet over the polish RIGHT AFTER you paint the nail. Hold the magnet for at least 10 seconds but the longer you hold the magnet over the polish the clearer the design. See related link below for a few things that can happen when you're using magnetic polish and how to fix them.
Yes
Hold a magnet up to it.