# Electric Charge and Electric Force

## Charge is created by electron imbalance; like charges repel while opposite charges attract.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Forces on Charged Objects

by CK-12 //at grade
Explains fundamental ideas about the electrical nature of matter, electrons and protons, ionic charges, and conduction.
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3
• Interactive Simulations

## Coulomb's Law

by CK-12 //at grade
Learn how the placement of charges leads to electric field and electric potential patterns in nearby space.
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• PLIX

## Forces on Charged Objects

by CK-12 //at grade
Electric Charge and Electric Force Interactive
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• Video

## Van de Graaff Generator

by CK-12 //at grade
Demonstrates how a Van de Graaff generator can charge hair.
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• Video

## Electrocution!

by CK-12 //at grade
Demonstrates how a Van de Graaff machine makes hair stand on end.
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• 1
• Real World Application

## Electrolytically Charged Sphere

by CK-12 //at grade
Learn how force due to a point charge changes as a function of distance.
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• Real World Application

## Electrically Charged Sphere

by CK-12 //at grade
Learn how force due to a point charge changes as a function of distance.
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• Real World Application

## Balancing Charged Sphere

by CK-12 //at grade
Learn how force due to a point charge changes as a function of distance.
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