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Electromagnets_Coelho.notebook Electromagnets Energy Interactions 5T1U2A05 ? ? In the past, scientists wondered if electric charge and magnetism were related. They knew that charged objects and magnets both produce a force that can pull or push without touching. ? The discovery that an electric current can turn a compass needle proved that the two forces are related. ? ? 1 Electromagnets_Coelho.notebook What is this?? How does it produce electricity?? How does an electromagnet use a switch to make it a working system? Electromagnet: a temporary magnet created when electricity passes through wire wrapped around an iron bar 2 Electromagnets_Coelho.notebook **Make electromagnets then... Discuss: 1. Explain how you designed and made your strongest electromagnet. How many paper clips were you able to life from the tabletop? 2. How is an electromagnet different from a bar magnet? How is it the same? Electromagnets can be turned on and off by closing the electrical circuit; bar magnets cannot. Both types of magnets are attracted to only certain types of materials and not others. Both attract materials at either end. 3. How is an electromagnet a system? An electromagnet has parts that work together in order to make a complete electrical circuit that produces magnetic effects. Removing ay part of the electromagnet would cause it to not work. 3 Attachments 5T1U2A07 CUC Phys. Sci. Junkyard Science.ppt