Pietro IST Opicina

Science Entry

This quarter in science we studied electricity and magnetism. Magnetism is the attraction of a magnet for another object. Any magnetics two ends, a positive and a negative, wich are called poles. Magnetic poles that are alike, like south and south repel while the unlike, like north and south, attract eachothers. A material that is attract by a magnet is called ferromagnetic material. Ferromagnetic materials are: iron, nickel and cobalt. If you brake a magnet in half there will always be two poles. The magnetic rock is called magnetite.89
In the electric chapter of the science book we studied electricity, expecially circiuts. The two main circuits are parallel and series. Parallel are better because electricity have two streets to pass so if one blow out the other don't. Series circuits instead have only one path, this means that if onwe blow out all blow out.147

posted by Pietro M @ 4:57 AM