Magnetism
Louise Ferrall
Sample Text 1
Magnets are created by how atoms bond together to make materials. When certain atoms connect, they form a positive side and a negative side. The positive side attracts negative and avoids other positive, and the negative side attracts positive and avoids negative. Circling around a magnetic object is the magnetic field, also named the B-field. The magnetic field shows how far the magnet's force stretches to other objects. The magnetic field is made out of electricity and attraction between molecules.
Magnets are created by how atoms bond together to make materials. When certain atoms connect, they form a positive side and a negative side. The positive side attracts negative and avoids other positive, and the negative side attracts positive and avoids negative. Circling around a magnetic object is the magnetic field, also named the B-field. The magnetic field shows how far the magnet's force stretches to other objects. The magnetic field is made out of electricity and attraction between molecules.
Sample Text 2
Every magnet has a magnetic field which rotates in a certain direction. When this field comes in contact with another object, the other object changes its direction. The Right Hand Rule is a way to figure out which way the field is moving. Going along with this text will be a screen displaying a video of this kind: http://www.youtube.com/watch?v=eK1Ar5WPJj8 This video comes with captions that would need to be reworded so a younger child could comprehend the direction and concept. This is a good video because it gives a visual as to how the rule works. The example at the end would be taken out as the children can try some examples later in the exhibit |
Sample Text 3
A solenoid is a magnet created by a coil of wire and electricity. When the electricity is turned on and goes through the wire, a magnetic field is created. Without the electricity the wire would remain not be a magnet. Some materials such as a coil of wire need extra help from electricity to become a magnet. The electricity gets a charge rotating around the metal to create the magnetic field to attract (or not attract) other magnets and metals
A solenoid is a magnet created by a coil of wire and electricity. When the electricity is turned on and goes through the wire, a magnetic field is created. Without the electricity the wire would remain not be a magnet. Some materials such as a coil of wire need extra help from electricity to become a magnet. The electricity gets a charge rotating around the metal to create the magnetic field to attract (or not attract) other magnets and metals
Activity 1
To demonstrate the Right Hand Rule, there would be a touch screen activity by the section of the exhibit that describes the concept. The screens will show multiple situations of magnets which the children can hold their hands up to and guess which way the field is rotating. Once they have guessed, they can press a button on the screen that will show the answer. There will be several situations like this (likely about a dozen) and the children can choose to do as many or as few as they would like. |
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![Picture](/uploads/2/9/4/9/29492365/6304827.png)
Activity 2
The museum will have a solenoid the children can experiment with. There will be a coil of wire. A magnet will be attached by a chain (so it does not get lost) to the table. Roscoe will be giving the children the instructions in the caption above. Then there will be a switch that will send enough current through the solenoid to create a magnet (the source of the current will be under a protective box of some sort so there is no risk of small children touching it and potentially hurting themselves). Then the children can try the magnet to the solenoid once more and see the different
The museum will have a solenoid the children can experiment with. There will be a coil of wire. A magnet will be attached by a chain (so it does not get lost) to the table. Roscoe will be giving the children the instructions in the caption above. Then there will be a switch that will send enough current through the solenoid to create a magnet (the source of the current will be under a protective box of some sort so there is no risk of small children touching it and potentially hurting themselves). Then the children can try the magnet to the solenoid once more and see the different
In the center of this exhibit, there will be a table with magnets. It will similar to a doctor office waiting room play table as there will be multiple magnets and objects inside and on the bottom of the table, other magnets are attached to strings which the kids can move the table magnets with.
Staffing: One employee to make sure all goes smoothly; $9.60/hr
A list of some of the Costs
Monitors (3) Signs to display information Magnet table with supplies Wire Coil Batteries Magnets Tables |
Estimated Cost
$100 $350 $5 $5 $15 $150 |