Research and discuss the aurora borealis in terms of electric charges, magnetic fields, and forces. Which times of the year are best for seeing the north

 discussion-  Research and discuss the aurora borealis in terms of electric charges, magnetic fields, and forces. Which times of the year are best for seeing the northern lights, and where are the best places to view them? Explain your answers. Also identify links to good images. If you’ve ever seen the aurora borealis, describe your experience and note the time and place that you saw it. 

Faraday’s Law

Electric generators use the properties of electromagnetism to transform kinetic energy into electrical energy. Many electric generators work by spinning a permanent magnet near coils of wire. Experiment with this simulation of electricity generation to visualize how this process works. Once the simulation opens, try moving the permanent magnet around to see what happens. Also rapidly switch the polarity of the magnet by repeatedly clicking on the magnet icon at the bottom of the page, and observe the effect.

Part A

Try moving the magnet in the different ways described in the table below,. Record your observations in the second column of the table. 

    Motion                                                            Observations     

Move the magnet straight through the coil, leading with the north pole. Once the magnet is completely through, move it back to its original position.    

Move the magnet straight through the coil, only this time leading with the south pole. Once the magnet is completely through, move it back to its original position  

Put the magnet in the center of the coil, but don't move it.   

Put the magnet on the outside of the coil. Repeatedly move it up and down while outside of the coil.   

Keeping the magnet outside of the coil. Repeatedly move it back and forth horizontally.  

Place the magnet back inside of the coil. Now repeatedly switch the polarity of the magnet by pressing the button toward the bottom-right of the page over and over again.       

10ptSpace used(includes formatting): 1294 / 30000

Part B

After producing electricity in many different ways, describe what causes electricity to flow in the coil? In your response, describe the types of forces acting on the electrons and how they result in movement.

As you know, loudspeakers are used for communication at sporting events, and in schools or supermarkets. Research loudspeakers on the Web. Describe the components of a speaker and explain how it produces sound. In particular, explain how the force on a current-carrying wire in a magnetic field is used to make a speaker operate.

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Throughout this lesson, you learned about the lives and contributions of key scientists in this area of physics. Create a timeline that ties them all together. The timeline does not need to be highly detailed, but it should do the following:

• Include at least the four major scientists covered in this unit: Oersted, Ampère, Faraday, and Tesla.
• Include key contributions of each scientist and provide a year, if possible, for those contributions.
• Note any relationships among these and other scientists, especially if one developed something based on the work of another.
• Arrange the scientists chronologically by their first key contribution, not by their birth date.