Ch 40: Praxis Biology & General Science: Physics Review: Magnetism

About This Chapter

Study magnetic forces, electromagnetic induction, and more as you prepare for the Praxis Biology and General Science exam. Make studying easier - watch our video lessons and take self-assessment quizzes.

Praxis Biology & General Science: Physics Review: Magnetism - Chapter Summary

With our lessons, you can review the physics and electromagnetics topics covered by the Praxis exam, including the definition of a magnetic field, how they're created, and more. Video instructors help you understand all the scientific terminology, principles, and theories to make each lesson easy to remember and apply. Self-assessment quizzes will test your knowledge and retention of the subject matter. Lessons in this chapter include:

  • Magnetic Force: Definition, Poles & Dipoles
  • What Is a Magnetic Field?
  • How Magnetic Fields Are Created
  • How Magnetic Forces Affect Moving Charges
  • Electromagnetic Induction: Definition, Variables that Affect Induction, Conductor to Conductor & Transformers

Praxis Biology & General Science: Objectives

The Praxis Biology & General Science exam is used to determine your readiness to be licensed as a science or biology teacher in your state. Please note, the exact requirements for licensing or certification, including the minimum score considered a passing score for eligibility, vary by state.

The Biology & General Science test consists of 120 multiple-choice questions. You'll have two hours to complete the test. Physics accounts for about ten percent of the exam, or 12 questions. For this exam, you'll have to:

  • Understand the connections between science, technology, and society
  • Apply scientific principles and theories to common scenarios
  • Interpret scientific data collected in the field and observed in the laboratory

6 Lessons in Chapter 40: Praxis Biology & General Science: Physics Review: Magnetism
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.
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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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