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