Making Electricity

How do we make electricity?

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?

What do we remember about magnets?

Where is magnetic field strong? Weak?

#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

In notebook:

What is happening inside the wire?

What makes the electricity? What changes?

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

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