Compléter Magnets: Making and Breaking MagnetsVersion en ligne Let's recap what we've learnt about making and breaking magnets! par Emma Everitt 1 greater Hitting Coil 20 pole naturally temporary attract coils wires pole electromagnet demagnetise batteries Repeat magnetised same magnetic iron test STROKE increasing separated How can we a magnet ( make its lose its magnetic strength ) ? Methods to demagnetise a magnet : ? Heating ? / Hammering ? Dropping When a magnet is demagnetised , it will not be able to attract as many magnetic objects as before . How can we make magnets ? Some magnets exist in nature . ( Lodestones ) Some magnets can be made out of materials . When a magnetic object is made into a magnet , we say that it has been . Methods of making a magnet : ? Stroke Method ? Electrical Method THE METHOD Things needed : ? a magnet ? a magnetic object like an rod ? steel clips ( used to the magnetism of the rod ) Instructions : 1 ) Stroke the iron rod with one of the magnet 2 ) the stroking process at least times . 3 ) Make sure you keep using the same and in the direction . 4 ) Bring the iron rod near some steel clips . It will some steel clips if the iron rod has been magnetised . How can I make a stronger magnet using the Stroke Method ? ? The the number of strokes , the stronger the magnet . THE ELECTRICAL METHOD Things needed : ? a magnetic object like an iron nail ? an electrical wire ( about 10cm long ) ? one or two ? steel clips ( used to test the magnetism of the nail ) Instructions : 1 ) the electrical wire as many times as possible around the nail 2 ) Connect the ends of the to the battery / batteries . 3 ) Bring the iron nail near some steel clips . It will attract some steel clips if the iron nail has been magnetised . How can the magnet be made stronger ? ? increasing the number of of wire around the nail ? the number of batteries used A magnet made using the electrical method is called an . It is a magnet . Once the nail is from the wire , it is no longer a magnet .
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