Electricity

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Electricity

• By Denise Carroll

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Electricity

• Think
• Can you think of anything that uses electricity?

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Electricity is Everywhere

• In your home, electricity runs the lights,
  television, toaster, machines, heats, and does
  much more. Its hard to even imagine what your
  life would be like without it.
• What is electricity?

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Energy

• Electricity is another kind of energy.
• It travels through wires to your home.
• We will learn about two types of electricity
  current electricity and static electricity.
• Current electricity goes from one place to
  another.
• Static electricity stays in one place.

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This is Current Electricity
Current electricity goes from one place to
another.
1. Electricity travels in a circuit that begins
at a power plant.
5. When you plug something in and turn it on you
complete electricitys circuit.
2. The power plant sends electricity through
power lines. Overhead power lines carry
electricity to  transformers  on poles.
4. Electricity flows from the wires in the wall
to the outlet, then to the appliance cord.
3. From transformers, electricity travels into
houses and buildings through wires.
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Batteries

• People also get electric energy from batteries.
• We use batteries to get electricity into objects
  that are not connected to a wall plug.
• This electric energy is used for many things.
• toys
• radios
• cameras
• flashlights
• watches
• cars

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Complete Circuit

• In order for electricity to travel to where we
  need it, there must be a complete circuit of
  electricity. A complete circuit is like a circle.
  
• A circuit is a closed path so electricity can
  follow.
• Electricity starts at a particular place, travels
  around the circuit, and returns to the same
  place.
• No circuit will work if it has a break in it.

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Which Ones Will Light?

• Click on a picture to see if you are right.

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Youre Right!
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Try Again!
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What is static electricity?

• You walk across the rug, reach for the doorknob
  and..........ZAP!!! You get a shock. Or, you
  come inside from the cold, pull off your hat
  and......BOING!!! All your hair stands on end.
  What is going on here? And why does it only
  happen in the winter?

The answer is STATIC ELECTRICITY
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Static Electricity

• Static electricity stays in one place.
• Rubbing an inflated balloon on clothing or
  rubbing your shoes on carpeting forms static
  electricity.
• This happens because tiny particles called
  electrons move from one object to another. These
  particles have a negative charge.
• Static electricity is created when an object
  gives up or gains these electrons.

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Benjamin Franklin1706 - 1790

• Benjamin Franklin was known as the Electric
  Man.
• He was the first scientist who experimented with
  lightning and electricity.
• Electricity is one of our most widely used forms
  of energy.

Benjamin Franklin Memorial Philadelphia,
Pennsylvania
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Electricity Moves Fast!

• Electricity travels at the speed of light. At
  186,000 miles per second, it gives you no time to
  react! You cant move faster than electricity, so
  you just have to stay out of its way.

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Safety Tips

• Never play with electrical cords, wires,
  switches, or plugs.
• Stay away from fallen power lines. Tell an adult
  if you see a fallen line.
• Never use a hairdryer or play an electrical radio
  or television near a bathtub or sink.
• Before you climb a tree, look up. If a power line
  is nearby or touching, stay away from the tree.
• Never touch anything that runs on electricity
  when your hands are wet.
• Fly kites and model airplanes in a wide open
  field or parknever near overhead electrical
  wires.
• Never climb utility poles or electrical towers.
• Stay away from substations and transformers
  (green boxes).

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Congratulations!

• You have learned the difference between current
  electricity and static electricity.

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Resources

• http//images.search.yahoo.com
• http//office.microsoft.com/clipart