Electricity

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Instruction on Current Electricity

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Electricity

  1. 1. Current Electricity Veronica August University of Phoenix CMP 555: Designing and Producing Educational Technology Instructor: Janet Luch June 20, 2008
  2. 2. Objectives <ul><li>Learn: Circuits must be complete in order for them to work properly. </li></ul><ul><li>Do: Identify the components of a complete circuit. </li></ul><ul><li>SIF: You can create a complete circuit by selecting different conductors. </li></ul>
  3. 3. Introduction to Current Electricity (Discovery Education, 2008)
  4. 4. Current Electricity <ul><li>Electricity runs many objects in our everyday life. </li></ul><ul><li>What are some objects that use current electricity? </li></ul><ul><li>Current electricity is the flow of electrons through a conductor (Furgang, 2004). </li></ul><ul><li>How would life be different if we didn’t have electricity? </li></ul>
  5. 5. Current Electricity is All Around Us (Discovery Education, 2008)
  6. 6. Circuits <ul><li>All current electricity flows through circuits. </li></ul><ul><li>Circuits are closed paths where the electrons can flow through (Furgang, 2004). </li></ul><ul><li>If there is a break in the circuit the electrons will no longer flow. </li></ul><ul><li>Draw a picture of a closed and open circuit. </li></ul>
  7. 7. Circuits <ul><li>All circuits must include an electricity source like a battery, wires that are made from conductors, and something that needs electricity like a light bulb (Furgang, 2004). </li></ul>
  8. 8. Conductors <ul><li>Conductors allow energy to pass through freely. </li></ul><ul><ul><li>Metals </li></ul></ul><ul><ul><li>Water </li></ul></ul><ul><ul><li>Heated Gases </li></ul></ul><ul><ul><li>Human Body </li></ul></ul>
  9. 9. Insulators <ul><li>Insulators do not allow energy to pass through freely. </li></ul><ul><ul><li>Glass </li></ul></ul><ul><ul><li>Rubber </li></ul></ul><ul><ul><li>Plastic </li></ul></ul><ul><ul><li>Wood </li></ul></ul>
  10. 10. Switches <ul><li>Why do we have light switches? </li></ul><ul><li>How do you think they work? </li></ul><ul><li>The job of a switch is to open or close a circuit. </li></ul><ul><li>Let’s look inside to see what is happening. </li></ul>
  11. 11. Current Electricty (Discovery Education, 2008)
  12. 12. Switches <ul><li>http://faraday.physics.utoronto.ca/PVB/Harrison/Flash/LightSwitch/LightSwitch.html </li></ul>
  13. 13. More Circuits <ul><li>Go to the following site and follow the directions on screen </li></ul><ul><li>http://www.bbc.co.uk/schools/ks2bitesize/science/activities/conductors.shtml </li></ul>
  14. 14. What did you learn? <ul><li>Take the quiz to see what you have learned. </li></ul><ul><li>http://www.bbc.co.uk/schools/ks2bitesize/science/tests/conductors.shtml </li></ul>
  15. 15. References <ul><li>An Introduction to Current Electricity. Discovery Education (2008). Retrieved June 27, 2008, from unitedstreaming: http://streaming.discoveryeducation.com/ </li></ul><ul><li>CBBC. Science: Materials, circuits, and conductors interactive. Retrieved April 25, 2008, from http://www.bbc.co.uk/schools/ks2bitesize/science/activities/conductors.shtml </li></ul><ul><li>CBBC. Science: Materials, circuits, and conductors online quiz. Retreived April 25,3008 http://www.bbc.co.uk/schools/ks2bitesize/science/tests/conductors.shtml </li></ul><ul><li>Current Electricity. Discovery Education (2008). Retrieved June 27, 2008, from unitedstreaming: http://streaming.discoveryeducation.com/ </li></ul><ul><li>Electricity is a Form of Energy All Around Us. Discovery Education (2008). Retrieved June 27, 2008, from unitedstreaming: http://streaming.discoveryeducation.com/ </li></ul><ul><li>Furgang, K. (2004) Working With Electricity and Magnetism. New York, NY: Benchmark Education Company, LLC. </li></ul><ul><li>Harrison, D., M. (2007). Retrieved April 25, 2008, from http://faraday.physics.utoronto.ca/PVB/Harrison/Flash/LightSwitch/LightSwitch.html </li></ul>

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