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Understanding Electricity: Basics, Circuits, and Applications

Delve into the world of electricity with this comprehensive guide covering current, circuits, and static electricity. Learn about conductors, insulators, resistance, and energy conversion. Explore key concepts such as voltage, power, and electrical discharges. Discover practical tips to reduce resistance and understand the behavior of electricity in various circuits.

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Understanding Electricity: Basics, Circuits, and Applications

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  1. CHAPTER 1 ELECTRICITY

  2. The amount of charge flowing past a point in a given time • CURRENT

  3. The closed path for electrons to flow • CIRCUIT

  4. The unit used to measure current • AMPS

  5. A ________ _________ protects your home from circuit overloads • Circuit breaker

  6. List 3 ways to produce static electricity • FRICTION • CONDUCTION • INDUCTION http://www.regentsprep.org/Regents/physics/phys03/aeleclab/default.htm

  7. Like charges will _______ each other and opposites will _____________ • REPEL • ATTRACT

  8. The electricity from the outlets is ______________ current and has a voltage of _____ • ALTERNATING • 120 VOLTS

  9. The largest example of electric discharge • LIGHTNING!

  10. _________ allow electrons to flow freely through them. CONDUCTORS

  11. Heating elements contain metals of ____________ resistance • HIGH!!

  12. _________ can hold a static charge but do not allow the flow of electrons. INSULATORS

  13. Copper is used in electrical wiring because It is a conductor with LOW resistance.

  14. In this circuit, ________ energy is converted to electrical energy. • CHEMICAL

  15. Increasing resistance will ___________ the current. • DECREASE

  16. List 4 ways to reduce resistance in a conductor. • Shorten the wire • Use a good conductor • Make the wire thicker • Reduce the temperature of the wire

  17. If voltage increases, what happens to the current? • IT INCREASES!!

  18. In the case of Lightning, _________ energy is converted to heat, light and sound • ELECTRICAL

  19. Electric power is measured in • WATTS OR • KILOWATTS

  20. Potential difference is measured in • VOLTS

  21. The source of potential difference in a circuit • BATTERY

  22. If the voltage in a circuit is 20 and the resistance is 5, what is the current in amps? • 4 amps

  23. Why in a parallel circuit do the bulbs stay lit even if one goes out? • Each has its own path for electrons to flow

  24. Describe the flow of energy through a circuit. • Chemical reactions in electrolyte push electrons out of the battery, through the conductor, to the load and back to the battery.

  25. How does the VanDegraaf generator work??

  26. Why can you make a balloon stick to a wall?

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