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Ch 29: ILTS Biology: Direct Current Circuits

About This Chapter

Rediscover how energy prefers to flow by direct current circuits through the materials in this lesson. Our study materials, including video lessons and practice quizzes, will bring your knowledge to the forefront before you take the ILTS Biology test.

ILTS Biology: Direct Current Circuits - Chapter Summary

These lessons are designed to aid in your review of electric current, electric circuits and electrical resistance before you take the ILTS Biology test. Concepts covered in this chapter include:

  • Unit and types of electric currents
  • Definition, unit and variables of electrical resistance
  • Electrical circuitry
  • Kirchhoff's rules and their applications
  • Resistor-capacitor circuits

You can watch these lessons on a computer, smartphone or tablet as your time permits. These lessons average about five minutes each and are accompanied by a written transcript with key terms highlighted. Lesson quizzes and chapter tests let you assess your knowledge, and a clickable timeline links back to specific points in the video for review, if needed.

ILTS Biology: Direct Current Circuits Chapter Objectives

Illinois requires passing the ILTS Biology test as one of the conditions for certification to teach the subject. The exam consists of multiple-choice questions that assess your knowledge of basic science concepts. It is divided into six subareas, and questions on the topics explored in the Direct Current Circuits chapter are part of the physical science subarea. Taking the quizzes at the end of each lesson let you gain practice answering questions in the format you'll see on the exam.

5 Lessons in Chapter 29: ILTS Biology: Direct Current Circuits
Test your knowledge with a 30-question chapter practice test
What is Electric Current? - Definition, Unit & Types

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.

Electrical Resistance: Definition, Unit & Variables

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.

Types & Components of Electric Circuits

3. Types & Components of Electric Circuits

Learn about electrical components and types of circuits. By the end of this lesson, you'll be able to explain what components like bulbs, resistors, and capacitors do. You'll also be able to compare and contrast series vs. parallel circuits and DC vs. AC circuits.

Applying Kirchhoff's Rules: Examples & Problems

4. 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.

Resistor-Capacitor (RC) Circuits: Definition & Explanation

5. 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.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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Other Chapters

Other chapters within the ILTS Science - Biology (105): Practice and Study Guide course

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