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What is electricity?
• What do you see happening?
• What does the battery do?
• If we are going to make electricity, what has to happen inside the wire?
#1 RULE
• These magnets are STRONG.
• You should have a paper plate taped to the desk.
• #1 YOU MAY ONLY MOVE THE MAGNET AROUND OVER THE PLATE
Paper Plate
Magnet
Try it - Record in Notebook• [1] Get the biggest number you can. Each person
in your group has to be able to get (close) to this number.
• [2] Get a small number (you still have to move).• [3] List at least three things that help make it
bigger or smaller.• We’ll list these on the board (biggest numbers;
smallest numbers and things that matter) - What is happening in the wire? What is moving the magnet doing?
• We may look at using more wire.• Look at flashlight.
Name Date Partner
My biggest number:
Three things that made it bigger:
[1]
[2]
[3]
My smallest number:(still moving)
Three things that made it smaller:
[1]
[2]
[3]
If you finish this, we’ll give you another wire to see if you can make even bigger numbers.
My number: ___________ What made it even bigger:
Drawing
Drawing
On this picture draw a lineconnecting the words to thepart of the flashlight.
Draw a double-arrow showing what piece moves and in what directions.
How is what we did like what the flashlight does. How does the flashlight work?
MagnetLoops of wireLight-emitting diode
Electricity and Magnetism Are Closely Related
• Moving magnets creates electricity
• Moving electricity creates magnets
• And yes, you can do both
Resources
• http://phet.colorado.edu/new/simulations/sims.php?sim=Faradays_Electromagnetic_Lab
• http://www.walter-fendt.de/ph14e/generator_e.htm