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Name: Date: Graded Assignment Lab Report: Make an Electromagnet Purpose of the Lab The purpose of this lab is for you to make your own electromagnet. You will compare the strength of the electromagnet under varying conditions. Specifically, you will see if the thickness of the wire or the number of times a wire is coiled affect the strength of the electromagnet. Materials You will need the following materials for this lab. A large iron nail (about 3 inches long) About 3 feet of thin coated copper wire About 3 feet of copper wire of a different thickness than your first sample A fresh D size battery A pile of metal paper clips Experimental Design Follow the procedures to complete this lab. Using your first sample of wire, leave about 8 inches of wire loose at one end and wrap most of the rest of the wire around the nail. Try not to overlap the wires. Cut the wire (if needed) so that there is about another 8 inches loose at the other end too. Now remove about an inch of the plastic coating from both ends of the wire and attach one wire to one end of a battery and the other wire to the other end of the battery. See picture. (It is best to tape the wires to the battery but be careful! The wire can get very hot!). Now you have an ELECTROMAGNET! Put the point of the nail near a few paper clips and it should pick them up! Repeat steps 1-4 with your second sample of wire and see if the wire thickness affects the results. Repeat steps 1-4 with one of your samples of wire and this time vary the number of coils on your nail. See if the number of coils affects the results. Observations/Data Record the observations and/or data you collected here. What happened as you varied the number of coils in the wire? Answer: Type your answer here. Conclusion After conducting the experiment, how would you now explain the problem(s) or answer the question(s) raised when you described the purpose of the lab. Be sure to base your answer on the data you collected. Consider whether your conclusion is the only explanation for the data you collected, or if there could be alternate explanations. Answer: Type your answer here.