Electricity & Magnetism
There are four fundamental forces in physics, and one of them is called electromagnetism. But when we study physics, we usually learn about electric forces and magnetic forces separately. Well, the two forces seem very different from each other. But it turns out that they're part of the same electromagnetic force.
You and your partner (singular so maximum of 2 students /group) will create a prezi or pp answering the following questions. Be sure to have a work cited page using MLA format.
*******DO NOT PLAGIARIZE OR IT WILL BITE YOU IN THE TUSHY!
You will also be responsible for creating a demo or a 5-10 min lesson for the class demonstrating your new found knowledge of electromagnets. You must have my approval of this demo/lesson plan so that we don’t have redundancies within the class.
Here are some guiding questions to get you started on your journey of understanding how electromagnets work, how they are made and used in everyday life. THIS IS NOT AN EXHAUSTIVE LIST-in other words this research SHOULD provoke more questions that need to be answered and presented to your classmates!
Ø What is a magnet?
Ø What materials can become magnetized?
Ø What are permanent magnets?
Ø What is a magnetic field?
Ø What direction do magnetic field lines run?
Ø What is the relationship between magnets and electricity?
Ø Explain how electric current gives rise to a magnetic field? (you will need to describe what electric current is and what units measure current)
Ø What is an electromagnet?
Ø Explain how the right hand rule is used to determine the direction of a magnetic field. Use diagram
Ø How might you change the north and south poles on an electromagnet?
Choose from the list below to explain how electromagnetism is used in the workings of the specific device. Again, I do not want repeats, so choose wisely!
v MRI scanners
v Faraday’s cage
v Tesla Coil
v Van DE Graff Generator
v Solar photovoltaic cells
v Magnetic Levitation trains
v Electric motor
v Generator
v Door bell
v Electroscope
v PA system (school loudspeaker)
v Memory sticks
v Cell phones
v Electronic swipe cards
v Solenoid buzzer
v Other device of your choice- you must get my approval
Some other links that might be helpful
http://www.youtube.com/watch?v=XiHVe8U5PhU
http://www.youtube.com/watch?v=RVjnoCu10vc
http://www.youtube.com/watch?v=GCHJmMdHNPo
http://www.youtube.com/watch?v=hX7TKEBGUXk&feature=related
https://www.youtube.com/watch?v=1dl65UNzoF0
student demo
https://www.youtube.com/watch?v=RVjnoCu10vc
boring but informative
bill nye
https://www.youtube.com/watch?v=ak8Bh9Zka50
crash course part 1
https://www.youtube.com/watch?v=GMnsZuEE_m8&feature=iv&src_vid=cy6kba3A8vY&annotation_id=annotation_641220
part 2
https://www.youtube.com/watch?v=cy6kba3A8vY