Ch 25: General Science: Magnetic Fields & Forces

About This Chapter

This chapter covers magnetic fields and forces. Study up on several of its topical video lessons and take the self-assessment quizzes before you answer the AEPA General Science examination's related questions.

AEPA General Science: Magnetic Fields & Forces - Chapter Summary

Learn more about the creation of magnetic fields and the roots of magnetism by exploring this chapter. You can also review some common applications for electromagnetic induction. These topics are emphasized throughout several video lessons, which can help prepare you for questions on the AEPA General Science examination about:

  • Magnetic force
  • Magnetic fields
  • Strength and direction of magnetic forces
  • Electromagnetic induction

The topics above are reflected on the AEPA General Science examination. Your review time can be incorporated into your current schedule, since the online lessons are self-paced and accessible 24/7. Narrated by professional educators, the videos don't exceed ten minutes in length. They include an ask-a-question feature, written transcripts, links to additional courses and video tags for moving between main topics. Take the quizzes and the practice chapter examination after watching the educational videos.

6 Lessons in Chapter 25: General Science: Magnetic Fields & Forces
Test your knowledge with a 30-question chapter practice test
Magnetic Force: Definition, Poles & Dipoles

1. 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?

2. 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 Fields Are Created

3. How Magnetic Fields Are Created

Have you ever wondered how magnetic fields are created? In this lesson, we'll discuss the very simple answer to this question and look at how electric current can be used to make electromagnets, which have many everyday applications.

How Magnetic Forces Affect Moving Charges

4. 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.

Electromagnetic Induction: Definition & Variables that Affect Induction

5. 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.

Electromagnetic Induction: Conductor to Conductor & Transformers

6. Electromagnetic Induction: Conductor to Conductor & Transformers

Every day, we make use of a special case of electromagnetic induction known as mutual induction. In this lesson, we'll talk about this special phenomenon and how it is used in many common devices.

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 AEPA General Science (NT311): Practice & Study Guide course

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