Rabu, 01 Agustus 2012

Electrical Charges

Part 2


Charging by Friction

By: Adriel




 Atoms
Everything is made up of atoms. Atoms are everywhere because they are basically building blocks of matter. Atoms consists of protons with a positive properties, electrons with negative properties and also neutrons with neutral properties. If the atom looses or gains electrons, it gains an electric charge. Gaining electrons will cause the atom to gain a negative charge while losing electrons will cause the atom to gain a positive charge. The question is, how to charge an object? There are many different ways to charge objects and one is charging by friction

Charging Objects with friction
Atoms have different properties and one of those properties is the atoms "appetite" for electrons. Such property is called electron affinity. To charge objects, we can rub them and move electrons from object to object. When there are two objects, one will tend to gain atoms if its electron affinity is superior to the other object. When the electron affinity is superior to the other object rubbed against, it will then pull electrons out of the object as a result from rubbing. Usually the electrical charges are measured by "units". For example, -9 units. Hope you enjoy!!!

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