Electricity

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Electricity
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What Is Electricity?

• A form of energy made up of charges that can
  produce light, heat, or motion

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Kinds of Electricity

• Static
• An electric charge that collects or builds up on
  the surface of an object
• Examples
• Shocking
• Lightening

• Current
• The flow of electric charges carried through a
  material such as wire or other conductors
• Examples
• Power lines
• Computers
• Appliances

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Conductors and Insulators

• Conductors
• Any material that allows electric charges to move
  through it
• Examples
• Metals (esp. copper)
• Your body
• Electric wires

• Insulators
• Materials that do not allow electric charges to
  flow freely through them
• Examples
• Wood
• Glass
• Rubber

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Electricity
Static
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Lightning

• kills more than 60 people
• injures more than 400 people a year in the US

• one mile every five seconds
• about 50,000 F

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Limit Exposure
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Do Now
Write a paragraph about the cartoon. Tell what he
is trying to do. Will it work and why? What do
you think will happen? Use the following words,
static electricity, lightning, electrons,
positive and negative charges.
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CONDUCTOR
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INSULATOR
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Electricity

• Know what it is
• Know the different kinds
• Know about the different kinds of circuits
• Know about conductors and insulators

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The End