Negative charges in an atom are called ___________. electrons.
Static Electricity. Positive and Negative Charge Same charges repel.
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Transcript of Static Electricity. Positive and Negative Charge Same charges repel.
![Page 1: Static Electricity. Positive and Negative Charge Same charges repel.](https://reader038.fdocuments.net/reader038/viewer/2022103022/56649cb85503460f9497df12/html5/thumbnails/1.jpg)
Static Electricity
![Page 2: Static Electricity. Positive and Negative Charge Same charges repel.](https://reader038.fdocuments.net/reader038/viewer/2022103022/56649cb85503460f9497df12/html5/thumbnails/2.jpg)
Positive and Negative Charge
Same charges repel
![Page 3: Static Electricity. Positive and Negative Charge Same charges repel.](https://reader038.fdocuments.net/reader038/viewer/2022103022/56649cb85503460f9497df12/html5/thumbnails/3.jpg)
Positive and Negative Charge
Unlike charges attract
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Ben Franklin discovered lightening was static
electricity
![Page 5: Static Electricity. Positive and Negative Charge Same charges repel.](https://reader038.fdocuments.net/reader038/viewer/2022103022/56649cb85503460f9497df12/html5/thumbnails/5.jpg)
What is Charge?
Atoms are composed of protons (+), electrons (-) and neutrons. The nucleus contains the protons
and neutrons and the electrons surround the nucleus.
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What is Charge?
Protons are much larger than electrons but have an equal and opposite charge.
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Force on an Uncharged Particle
Initially the paper is uncharged, but the comb polarizes the charges in the paper.
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Conductors and Insulators
A conductor is a substance through which electric charge flows readily. An insulator is a substance that strongly resists the flow of electric charge.
Conductor
insulator
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Enlargement of 5 mm square
computer chip.
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Static electricity
is produced
by friction
between ice and water in the huge
cloud
Lightening
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Effect of Van De Graaf
• Hair is pushed apart as all the electrons on the hair repel each other.
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Summary
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H/W
• P 370/1• Q 1,2,3,13.