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Understanding Parallel and Series Circuits: Explaining the Difference

This introduction provides a clear explanation of the difference between parallel and series circuits, along with examples and diagrams. It covers the basic concepts of electricity, electrical symbols, and the importance of switches. The text also discusses static electricity, resistors, and the dangers of short circuits.

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Understanding Parallel and Series Circuits: Explaining the Difference

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  1. Introducing…… ELECTRICITY Essential Question: Explain the difference between Parallel and Series Circuits.

  2. Thoughts • 1. In your notebook list 3 things you have used today that REQUIRE electricity and 3 things that DON’T use electricity. • 2. From this list, Circle the one thing you would miss the most if electricity disappeared tomorrow. Why???

  3. Electricity • the flow of electrical current Electrical Circuit • something that provides a path for electricity

  4. Circuit • is always a circularpath.

  5. Switch • A device that will safely break or complete a circuit path. • When the switch is on the circuit path is complete. • When a switch is off the circuit path is incomplete and the electricity does not flow.

  6. Electrical Symbols are used to make circuit path diagrams easier to read. Draw these in your notebook!!!

  7. Can you label this circuits?? Resistors Battery

  8. Can you label this circuit?? Switch Light bulb Battery

  9. Open circuit is a circuit that has a break in it. • ‘turned off.’ • Closed circuit has no breaks . • ‘turned on.’ Notice which circuit path has their lights ON and which circuit path has their lights OFF. Why do you think this is so….?

  10. Static Electricity • When charge builds up

  11. UNITS • measured in coulombs. • There are parts of atoms that cause charges. • Protons are positive(+) • Electrons are negative(-) • Neutrons cause no charge.

  12. Series Circuit • Has only one path for electricity to flow If any part of the circuit is broken, then the all lights will go off. • Ex’s: Christmas tree lights • In a series circuit, the light bulbs are DEPENDENT on each other. • It is like adding pinches to a hose. Draw this Circuit In your Notes!!!

  13. Parallel Circuit • Has multiple paths for electricity to flow • If any part of the circuit is broken, the remaining lights will stay on. • Ex’s: your home!! • In parallel circuits, the light bulbs are INDEPENDENT of each other. • They have no effect on each other. Draw this Circuit In your Notes!!!

  14. Short circuits • Are very dangerous because they creates a huge amount of current • Circuit breakers and fuses are safety devices that prevent too much current from flowing inside wires. • If too much current flows the wires will melt and a fire will start! • Some reasons for short circuits: • Broken or damaged wires • charging a car battery the wrong way

  15. cienceenseTime! • What type of circuit is this? • SERIES • What type of circuit is this? • PARALLEL

  16. cienceenseTime! • What type of circuit is this? • SHORT • What type of circuit is this? • SERIES

  17. cienceenseTime! • What type of circuit is this? • SERIES • What type of circuit is this? • PARALLEL

  18. cienceenseTime! • What type of circuit is this? • PARALLEL • What type of circuit is this? • SERIES

  19. What time is it… SUMMARY TIME! YOU HAVE 3MINUTES TO SUMMARIZE AT LEAST 5 THINGS YOU LEARNED TODAY. MAKE SURE YOU WRITE IN COMPLETE SENTENCES.

  20. What time is it… SUMMARY TIME! YOU HAVE 2MINUTES TO SUMMARIZE AT LEAST 5 THINGS YOU LEARNED TODAY. MAKE SURE YOU WRITE IN COMPLETE SENTENCES.

  21. What time is it… SUMMARY TIME! YOU HAVE 1MINUTE TO SUMMARIZE AT LEAST 5 THINGS YOU LEARNED TODAY. MAKE SURE YOU WRITE IN COMPLETE SENTENCES.

  22. Parallel Series

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