Electricity. Chapter 10. Recall this info…. All matter is made of atoms which are the smallest particle of an element that has all the properties of that element. An atom has: Protons (+) Neutrons(No Charge) Electrons (-).
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An atom has:
Remember atoms usually have the same number of protons and electrons….this makes the atom neutral.
1) Force of Attraction -Pulls objects together
-Exists between oppositely charged particles2) Force of Repulsion
-Pushes objects apart
-Exists between particles of the same charge
The strength of an electric field depends upon the distance from the charged particle
1) Friction – 2 Objects rubbing against each other
2) Conduction – Charging by direct contact of objects.
-Electrons flow through one object to another
-Examples of conductors: Silver, Copper, Aluminum-Examples of insulators ( Do NOT allow electrons to flow freely): Rubber, Glass, Wood, Air, Plastic
3) Induction – Rearrangement of electric charges by coming close to a charged object. No contact necessary