Electrostatics

__**3 Big Rules of Electrostatics**__
 * Opposites Attract**




 * Likes Repel**




 * Only Electrons Move**

   [|Why are protons never lost or gained?]

__What are ions?  __  **__ An atom has no overall electric charge. __** **__ If an atom loses or gains electrons it is no longer called an atom. It is called an ion. An ion has a [|full outer shell]of electrons. An ion has an electric charge. __** An atom has no overall electric charge. __** It is called an ion. An ion has a full outer shell of electrons. An ion has an electric charge. __**
 * __ An [|atom] has the same number of protons and neutrons.
 * __ If an atom loses or gains electrons it is no longer called an atom.



For those of you who enjoyed the old school Nintendo and Super Mario Brothers... media type="youtube" key="VX5V_9s0Gfw" height="344" width="425"



What are the main differences between CHARGING by CONDUCTION, CHARGING by INDUCTION, and CHARGING by FRICTION? [|Conduction and Induction] Charging by Conduction and Induction  CONDUCTION  ...[|as explained by the biggest nerd on the Internet]

INDUCTION

FRICTION

<span style="color: #cb1515; display: block; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 180%; text-align: center;">Coulomb's Law <span style="color: #000080; display: block; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 130%; text-align: center;">Any two charged objects will create a force on each other. Opposite charges will produce an attractive force while similar charges will produce a repulsive force. The greater the charges, the greater the force. The greater the distance between them, the smaller the force.

<span style="background-color: #e0fae1; color: #008080; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 150%; text-align: center;"> Electrostatics at work...

Pollution control
Static electricity is used in pollution control by applying a static charge to dirt particles in the air and then collecting those charged particles on a plate or collector of the opposite electrical charge. Such devices are often called electrostatic precipitators.

Smokestacks
Factories use static electricity to reduce pollution coming from their smokestacks. They give the smoke an electric charge. When it passes by electrodes of the opposite charge, most of the smoke particles cling to the electrodes. This keeps the pollution from going out into the atmosphere. <span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">How a smokestack electrostatic precipitator works

<span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">Air fresheners
<span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">Some people purchase what are called air ionizers to freshen and purify the air in their homes. They work on a similar principle as the smokestack pollution control. These devices strip electrons from smoke molecules, dust particles, and pollen in the air, just as what happens in creating static electricity. <span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">These charged dust and smoke particles are then attracted to and stick to a plate on the device with the opposite charge. After a while, much of the pollution is drawn from the air. <span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">Since charged particles will also stick to neutral surfaces, some of them can stick to the wall near the ionizer, making it very dirty and difficult to clean.

<span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">Xerography
<span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">Your photocopier or Xerox machine uses static electricity to copy print to a page. This is done through the science of xerography. <span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">One version of this device electrically charges ink so that it will stick to the paper in the designated areas. Another version of a photocopier uses charges to stick the ink to a drum, which then transfers it to the paper.

<span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">Painting cars
<span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">Some automobile manufacturers use static electricity to help them paint the cars they make. The way this works is that they first prepare the car's surface and then put it in a paint booth. Next, they give the paint an electrical charge and then spray a fine mist of paint into the booth. The charged paint particles are attracted to the car and stick to the body, just like a charged balloon sticks to a wall. Once the paint dries, it sticks much better to the car and is smoother because it is evenly distributed.

<span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">Summary
<span style="color: #404040; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 120%;">Uses of static electricity include pollution control, Xerox machines, and painting. They use the property that opposite electrical charges attract. There are other uses involving the properties of repulsion and the creating of static electricity spar ks.

-//School for Champions//

<span style="color: #cb1515; font-family: 'Trebuchet MS',Helvetica,sans-serif; font-size: 180%;">Resources: <span style="font-family: 'Lucida Console',Monaco,monospace;">http://www.stmary.ws/highschool/physics/home/notes/electricity/staticElectricity/default.htm

http://www.school-for-champions.com/science/static_uses.htm

http://www.gcsescience.com/pse-electrostatic-charge-topics-links.htm

http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html

http://www.physicsclassroom.com/reviews/estatics/estaticsans1.cfm

http://www.iit.edu/~smile/ph96m1.html

http://regentsprep.org/Regents/physics/phys03/atribo/default.htm

http://videos.howstuffworks.com/hsw/17309-transferring-charge-conduction-video.htm

http://www.youtube.com/watch?v=0-A16NI4rL8&feature=related