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Foundations of Physical Science

Explore the basics of electric circuits and learn how electricity behaves. Discover the necessary foundation for understanding electricity and build different types of circuits. Key questions will be answered and practical activities will be conducted.

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Foundations of Physical Science

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  1. Foundations of Physical Science Workshop: Electric Circuits

  2. Electric Circuits CPO Science

  3. What “flow of understanding” provides the necessary foundation for an understanding of electricity? What kinds of electric circuits can you build? How does electricity behave? Key Questions

  4. Light the Bulb! What needs to happen to get the bulb to light?

  5. Wooden Board Wires of various lengths On/Off switches Bulbs and holder Resistors – fixed and variable Parts of our Circuits Kit

  6. Place the bulb in a socket Use one D cell Make the bulb light! Add a switch to conserve D cell energy Use your finger to trace the path of electricity from one terminal of the D cell to the other terminal Build a simple Circuit

  7. Wire Bulb Battery Switch Parts of a Circuit Symbols used for Diagramming

  8. Add a second D cell to your circuit, right next to the first. Be sure to match up positive terminal with negative terminal Do you notice any difference? Add a second light bulb to the circuit, keeping only one pathway for electricity to follow What do you observe now? Let’s build on this…

  9. Series Circuit

  10. Keep two D cells in the circuit Wire up the 2 light bulbs so that there are two branches or pathways for electricity to follow What differences do you observe? Another way to light two bulbs

  11. Parallel Circuit

  12. Can you explain why the bulbs in a parallel circuit are brighter?

  13. Water Analogy

  14. Resistance and Current Inverse Relationship

  15. Voltage The amount of potential energy that each unit of charge has

  16. V = voltage, measured in volts I = current, measured in amperes, or amp R = resistance, measured in Ohms, symbol W Review

  17. Using the Multimeter to measure Voltage • Battery in a circuit • Battery by itself

  18. Using the Multimeter to measure Current • Current in a circuit • Multimeter completes the circuit

  19. Analyze Circuits

  20. Why are parallel bulbs brighter?

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