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-1- Jack Mariner Physics Coursework Using paperclips to experiment the effects of the strength of a magnet Introduction I am going to carry out an experiment, which involves different amounts of coils wrapped around a magnet (forming, with the aid of electricity from a power pack, an electromagnet). The purpose being to establish the relationship between the number of coils and the amount of paper clips picked up. Originally the idea was to count the clips that the electromagnet picked up, but this proved too time consuming. Because of this, we decided to weigh the clips that had been attracted instead. Research Magnetism Certain materials exert invisible forces, similar to electric forces. A magnet will attract objects made of iron, and a few other metals. I am using paperclips, which are made out of iron. Magnetism from electricity A connection between electricity and magnetism was discovered (accidentally) by Orsted over 100 years ago, who noticed that a...

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