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Static Electricity:
Objects are made of atoms and molecules. Within the atom, electrons
have a negative charge. Most objects have equal numbers of electrons
and protons, hence they have no charge or neutral charge. When an
object gains or loses electrons it becomes "charged".
Gaining electrons gives it a negative charge. If an object has a
charge, it attracts articles with the opposite charge and repels
things with the same charge. This attraction or repulsion is called
'electrical force". Charged objects have potential electric
energy called 'static electricity". It is called static electricity
because the electrons are not moving as they do in an electric current.
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Your clothes become charged by rubbing
against each other as they tumble around in a dryer. Electrons are
rubbed off some items and unto others. Items that lose electrons
cling to items that gain electrons. Because your clothing is an
insulator, charges stay on each piece of clothing , creating static
electricity. Try dragging your feet across a rug and then touching
a doorknob. You know what will happen. You rub electrons off your
shoes thus becoming charged. When you reach for the doorknob you
attract the electrons in the knob causing them to jump to your hand.
The movement or flow of electrons is called electric current.
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The
movement of electrons.
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Click
on the picture above
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