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Magnetism

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      Help! I’m lost! Which way should I go? A compass can tell us which way to go. It is based upon magnetic principles that cause the compass needle to point toward the Earth’s North geographic pole (which is actually a south magnetic pole). The nature of the Earth’s magnetic poles (i.e. whether they are a north magnetic pole or a south magnetic pole) hasn't always been known, but you can discover
how the poles are/were determined by using the structure of a magnet. The Law of Magnetism leads to the identification of magnets, or magnetic materials, and helps us understand why some materials are not magnetic. This understanding will allow us to develop the principals of the electric motor and the generator…which means that I can have my computer, TV set, and lights in my home. When drawing your magnetic field lines, you will notice that there will be a lot of them (approx. 48), with many of them overlapping. You will probably feel that your data sheet looks like a mess, but if you to use a different color for each section the fields are quite easy to see. 
        We have gathered together all the magnetic materials some other possible materials in a test kit. Test each of the materials to discover the magnetic materials found at standard temperature and pressure. These, magnetic, materials will be used to explain how a electromagnetic works.
     When looking at the magnetic fields produced by a current flowing through a conductor, it will help your understanding if you try to visualize the magnetic fields that exist around all the current carrying wires in your home. This visualization will help you understand the relationship between electricity and magnetism.
       Producing electric current using a magnet and a coil of wire requires patience and a careful eye. Insert the magnet fully into the coil and remove it fully. Look carefully at the galvanometer. ANY movement indicates the production of electricity. When making your motor, make sure the armature that you make is balanced or it will not rotate smoothly and your motor will not work. Also make sure to remove the insulation from the wire as indicated in the textbook. 

Topic Objective
Demonstrate understanding of the Magnetism topic by mastering the topic objectives, conducting an experiment, applying learning outcomes to related research, stating the relevancy of at least two topic concepts in a written topic report.

Assignment
1.  Read the topic in your textbook.   
2.  Write the Procedure Section of the topic report. The procedure section of the topic report is a summary of what is going to be done for this report. There should be one paragraph for each “part” of the investigation (laboratory). Each paragraph should discuss what is to be done and how it is to be done. 
3.  The Data section of your report.  The Data Section contains the data obtained from the laboratory investigations. The data is presented using the electronic data sheets obtained from the web site. Post any questions you have to the Discussion Board.
4.  Write the Outcomes section of the topic report. The Outcomes section of the topic report presents the specific outcomes for each part of the laboratory activities with respect to the research questions. There should be one paragraph for each “part” of the investigation (laboratory).
5.  Write the Application section of the topic report. The application section of each seminar identifies an activity or activities that involved the web.

Each application includes: 1)A picture that identifies the web site. The picture must include URL and Part of Page as ONE Picture. 2) A description the contents of the web site or activity. 3) An indication on how the web site applies to the topic. 
    
      Visit either of the sites listed below.    
           

http://www.howstuffworks.com/question-archive.htm

(Use Search Engine to Find: How does an electric motor work?)

 

                           http://www.sciencetech.technomuses.ca/english/schoolzone/Info_Magnets.cfm
                      (Background Information for Magnets)  

6. The Relevancy section of your topic report: 
     a. Identifies and lists a minimum of two concepts presented in this topic. 
     b. Discusses and relates each concept to your life.
7. Write the "Summary" section of your report. The Summary section summarizes the work of the topic. This should include a broad statement of outcome of the the topic, thoughts, based upon the work of this topic including feelings about the content of the topic and how the topic relates to your life.  Also, post this section of your report to the Discussion Board.
8. Take the on-line topic quiz and include your final set of answers in your topic report. Any questions you are uncertain of the answer post to the Discussion Board.
9. Online students submit your topic report, to the Email address assigned by your instructor, before the assigned deadline.
10. Return all equipment to its original package. Make sure that the materials are neat and clean, ready for the next student. Remember part of your grade is dependent upon proper handling of the equipment.

 

"Anything one person can imagine other people can make real." 
Jules Verne

 

Last Updated: Thursday, February 17, 2005