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Ch 9: Understanding Electricity & Magnetism

About This Chapter

Gain an understanding of electricity and magnetism, including topics such as static electricity, parallel circuits, magnetic force, electrical resistance, and more. Whether you're planning to ace an exam or participate in class discussions, these brief lessons can be helpful.

Understanding Electricity & Magnetism - Chapter Summary

In these lessons, you'll get a better understanding of electricity and magnetism. Topics covered include R-L-C series circuits, Ohm's law, and eco-friendly uses of technology. You'll also review the basic properties of magnets. After completing the chapter, you should be able to do the following:

  • Explain electric charge and force
  • Discuss the cause of static electricity and how to prevent it
  • Describe the features of circuits and the difference between AC and DC circuits
  • Examine common uses of conductors and insulators
  • Define magnetic force, electrical resistance, and electromagnetic induction
  • Understand how a magnetic field is used to create a new magnet
  • Calculate the electric potential difference between two points
  • Explain the difference between parallel and series circuits

Our short lessons focus on the fundamentals of each subject. Video timelines let you navigate the learning process and review only the topics you need to review. A brief multiple-choice quiz is available for each lesson to test your knowledge. You can also print the lesson quizzes. They can then become convenient offline worksheets.

15 Lessons in Chapter 9: Understanding Electricity & Magnetism
Test your knowledge with a 30-question chapter practice test
Electric Charge and Force: Definition, Repulsion & Attraction

1. Electric Charge and Force: Definition, Repulsion & Attraction

Have you ever wondered what electricity is and where it comes from? Have you ever been zapped by static electricity and wondered how it got there? We'll answer all of these questions in this lesson on electric charge and force!

What is Static Electricity? - Definition, Causes & Uses

2. What is Static Electricity? - Definition, Causes & Uses

In this lesson you will learn what static electricity is, what causes it, and what conditions prevent static electricity from occurring. You'll also see some fun and interesting real world situations and applications that involve static electricity.

Circuit Theory Basics

3. Circuit Theory Basics

Learn what a circuit is, how to describe the features of circuits, and be able to differentiate between AC and DC circuits in everyday life. Complete a quiz to test your knowledge.

Parallel Circuits: Definition & Concepts

4. 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.

R-L-C Series Circuits

5. R-L-C Series Circuits

After watching this lesson, you will be able to explain what an RLC series circuit is and use related equations to solve simple problems. A short quiz will follow.

Insulators and Conductors: Examples, Definitions & Qualities

6. Insulators and Conductors: Examples, Definitions & Qualities

In this lesson, we'll explore the reasons that some materials conduct electrical energy with ease while others block it almost completely. We'll also talk about the property of conductivity and some everyday examples of insulators and conductors.

Magnetic Force: Definition, Poles & Dipoles

7. Magnetic Force: Definition, Poles & Dipoles

You're probably familiar with magnets, but have you ever stopped to consider how they work? In this lesson, we'll look at the root of magnetism and some of the fundamental properties of magnets.

What is a Magnetic Field?

8. What is a Magnetic Field?

Magnetic fields fill the space around all magnets, but they're impossible to detect with our own senses. We'll use a common tool to map out a magnetic field and then discuss ferromagnetic materials to see how a magnetic field can be used to create new magnets.

How Magnetic Forces Affect Moving Charges

9. How Magnetic Forces Affect Moving Charges

A magnetic field exerts a force on a moving charged particle in ways that you might not expect. In this lesson, we're going to look at the direction of this force and the factors that affect its strength.

Ohm's Law: Definition & Relationship Between Voltage, Current & Resistance

10. Ohm's Law: Definition & Relationship Between Voltage, Current & Resistance

Did you know that electrical current is affected by the voltage and resistance in a circuit? In this lesson, we'll use Ohm's law, which tells us how current, voltage, and resistance are related, as we work through several electric circuit examples.

Electrical Resistance: Definition, Unit & Variables

11. 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.

Finding the Electric Potential Difference Between Two Points

12. Finding the Electric Potential Difference Between Two Points

After watching this video, you will be able to explain what electric potential difference is and calculate the electric potential difference between two points in a uniform electric field. A short quiz will follow.

Building Series & Parallel Circuits: Physics Lab

13. Building Series & Parallel Circuits: Physics Lab

After completing this lab, you will be able to explain the difference between series and parallel circuits, and describe how the voltage and current vary across them. A short quiz will follow.

Electromagnetic Induction: Definition & Variables that Affect Induction

14. Electromagnetic Induction: Definition & Variables that Affect Induction

We use electromagnetic induction every day, but do you have any idea what it is? In this lesson, we'll discuss this everyday phenomenon, the factors that affect its strength and its most common applications.

Efficient & Eco-Friendly Use of Technology

15. Efficient & Eco-Friendly Use of Technology

This lesson will describe and give examples of the use and creation of eco-friendy and efficient technologies that are at the forefront of pushing for a sustainable future.

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

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