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Cheatography

Lesson 19.1 - Electric Charge Cheat Sheet (DRAFT) by

Summarization of Lesson 19.1

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Types of Charging

Charging by Friction
Charging by Conduction
Charging by Induction
Charging by Polari­zation

Charging by Friction

the transfer of electrons from one uncharged object to another by rubbing the two objects together. (Like hair and balloon)

Charging by Conduction

the transfer of electrons from one object to another by direct contact. (Like when you rub your feet on the carpet, but the charges move to your hands)

Charging by Induction

the transfer of electrons from charged object without touching the object itself (indirect). (Like When a computer monitor or television screen is turned on it begins to build up a charge)

Charging by Polari­zation

All the atoms or molecules near the neutral material become electr­ically polarized by rearra­nging when a charged object is brought close. (Like a charged balloon when it is stuck to the wall)
 

Atom: smallest unit of matter

Like charges repel, Unlike charges attr­act

Conser­vation of Charge

which means charge can neither be created nor be destroyed but can be transf­erred from one body to another

Quanti­zation of Charge

which means that charge is a quantized quantity and is expressed as integral multiples of the basic unit of charge

Additivity of Charge

which means that if there are n number of charges present inside, The total charge present will be the algebraic sum of the individual charges
 

Coulomb's Law

Electric Force vs Gravit­ational Force

Materials Connec­tivity

How does an object get negatively charged?

How does an object get positively charged?