Secret of Magnetism Essay -- essays research papers

Research, p.1Do you want to know a secret? First, consider this When a magician performs a magic trick, many ask, How did he do that? salutarythe true magician never tells because it is a secret. But when speaking slightly magnetism and its use in our everyday lives, you poop learn the hole-and-corner(a)the secret of magnetism A true scientist would be glad to tract his secrets through experimentation. Thus, I will sh ar the secret with you. It begins with sciencephysics, to be exact matter and energy, conduction and induction, magnetizing and demagnetizing. All will be explained in my science project. More importantly, to discover through experimentation that the secret commode magnetism could be its power Lets start by defining an electromagnet.     An electromagnet is a temporary magnet formed when electric new flows through a conducting wire or a conductor. Most electromagnets represent of wire wound around an iron core. This core is made from squa shy iron that loses its magnetism quickly when the electric reliable stops sa piddling through the wire.     Electromagnetism is the branch of physics that studies the relationship between electricity and magnetism. Electromagnetism is based on the fact that (1) an electric current or a charging electric field produces a magnetic field or (2) a charging magnetic field produces an electric field.     In 1820, the Danish scientist Hans Oersted find that a conductor carrying an electric current is surrounded by a magnetic field. When he brought a magnetized needle near a wire in which an electric current was flowing, the needle moved. Because a magnetized needle is moved by magnetic forces, the experiment proved that an electric current produces magnetism.          Research, p.2Also, during the 1820s, the French physicist Andre Marie Ampere decl ared that electric currents produce each magnetism. He c oncluded that a permanent bar magnet has tiny currents flowing in it. The work Oersted and Ampere did led to the development of the electromagnetwhich is utilize in such devices as the telegraph and the electric bell. They confirmed as stated earlier Most electromagnets consist of a coil of wire wound around an iron core. The electromagnet becomes temporarily magnetized when electric current flows th... ...you devour any magnets around you? What shape are they? Magnets come in every shapes and sizes, but they whole pull and push with an invisible force. Further, all magnets pull or attract whatever things but not others. For example, all magnets attract the metal iron. So, if you use a magnet to pick up safety pins or paper clips, it will only attract them if they comport iron.     You plausibly were aware that electricity can provide light, heat and sound. However, you probably did not know that electricity can also turn something into a magnet Again, a magnet is anything that attracts or attaches to iron or steel. You have seen small magnets hold pictures and papers on refrigerator doors. There are a number of items in your home that need electromagnets to work, as I demonstrated with my doorbell experiment. To conclude, as youve witnessed, magnets have the ability to expel a force on other magnets or pieces of magnetic material some distance away. The reason that they can do this is because magnets are weaker the farther they are away from another magnet. Now that you know how a magnet works, can you make one? Ill give you a hint the jointure pole and South pole.