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# 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)