Electricity What Is Electricity? A form of energy made up of charges that can produce light, heat,...
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Transcript of Electricity What Is Electricity? A form of energy made up of charges that can produce light, heat,...
Electricity
What Is Electricity?
• A form of energy made up of charges that can produce light, heat, or motion
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
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
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
Limit Exposure
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.
ElectricityKnow what it isKnow the
different kindsKnow about the
different kinds of circuits
Know about conductors and insulators
The End