About This Chapter
Below is a sample breakdown of the Direct Current Circuits chapter into a 5-day school week. Based on the pace of your course, you may need to adapt the lesson plan to fit your needs.
|Day||Topics||Key Terms and Concepts Covered|
|Monday|| What is Electric Current? - Definition, Unit and Types; |
Electrical Resistance: Definition, Unit and Variables;
Electric Circuit Fundamentals: Components and Types
| A look at direct and alternating currents; |
How atoms can impede the progress of the flow of electrons;
Electron flow through series and parallel circuits
|Tuesday||Series Circuits: Definition and Concepts||An exploration of circuit and single pathways|
|Wednesday||Parallel Circuits: Definition and Concepts||The characteristics of parallel circuits and components|
|Thursday||Applying Kirchhoff's Rules: Examples and Problems||A look at how the amount of electrical current entering or exiting a junction must be equal|
|Friday||Resistor-Capacitor (RC) Circuits: Definition and Explanation||How resistors and capacitors are combined in circuitry|
1. What is Electric Current? - Definition, Unit & Types
Like a river current is the flow of water molecules, electrical current is the flow of charged particles. In this lesson, we're going to explore what electrical current is, what causes it, and that, unlike a water current, electrical current doesn't always flow in one direction.
2. Electrical Resistance: Definition, Unit & Variables
We'll take a shopping trip to the mall to learn how electrical resistance works and how it is affected by resistivity, conductor dimensions, and temperature. We'll also take a look at several common appliances that take advantage of resistance to function.
3. Electric Circuit Fundamentals: Components & Types
Electric circuits can be configured to power several loads, such as light bulbs, in series or in parallel. In this lesson, we'll look at both types of circuits and see how the voltage, current, and resistance are affected by installing additional loads.
4. Series Circuits: Definition & Concepts
When you flip a switch to turn your lights on, you are completing a circuit and providing a pathway for electrons to flow. In this lesson, you'll learn how connecting devices in a series along that circuit affects the current and resistance throughout.
5. Parallel Circuits: Definition & Concepts
People moving through an airport are similar to electrons moving through a circuit. Parallel circuits are one type of simple circuit, and they get their name from the multiple, parallel paths they provide for electron flow.
6. Applying Kirchhoff's Rules: Examples & Problems
Ohm's Law can be useful for analyzing simple circuits, but when circuits are more complex, as they often are, we can instead analyze the circuits using Kirchhoff's rules. Learn about Kirchhoff's rules in this lesson.
7. Resistor-Capacitor (RC) Circuits: Definition & Explanation
Resistor-capacitor (RC) circuits are everywhere because they are useful in our everyday lives. The current in these circuits varies with time, making them both practical and common in many types of electronic equipment.
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