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Electric Charge - Example Papers

Electric Charge

In some Greek experiments, objects attracted each other after rubbing. Other experiments produced objects that pushed away, or repelled, each other. The evidence showed that electric force made matter either attract or repel other matter.
Electric force is caused by . is a property of the bits of matter within atoms. Electric force can cause matter to attract or repel because there are two kinds of charge – positive and negative charge.
The effects of electric force can be summarized as the law of : Pieces of matter with the same kind of charge repel each other. Pieces of matter with the same kind of charge attract each other. 2 objects with a positive charge repel each other, as do ...

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electricity to contrast then with the moving charges in an electric current.
How can you disturb the balance of charge on objects so they exert electric force? The easiest way is the same way the ancient Greeks did it – by rubbing the 2 objects together. Rubbing neutral objects together allows charged pieces of matter to move from one object to another.
The invisible bits of negatively charged matter that move between objects are called electrons. The words electron, electricity, and electronics all come from the Greek word for amber – elektron. The transfer of electrons explains the electric force that attracts the balloon to the wool. Rubbing the neutral balloon with the wool cloth allows some electrons to leave the wool and stick to the balloon.
Neutral objects, like the balloon and the wool, become positively or negatively charged when their charges are disturbed. When an object becomes charged, no new charge is created; charge is simply moved around. This ...

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PAPER DETAILS

Added: 5/7/2008 07:08:13 AM
Category: Science & Nature
Type: Premium Paper
Words: 587
Pages: 3

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