About This Chapter
Praxis Physics: Magnetism- Chapter Summary
These lessons will address the many aspects of magnetism, including magnetic forces and fields, to help you prepare for the Praxis Physics exam. Additional subjects that will be detailed include:
- Electromagnetic induction, variables, and transformers
- Conversions between electrical and mechanical energy
- Faraday's Law
- Biot-Savart Law
- Ampere's Law
- Maxwell's equations
You will be guided through this chapter by an expert instructor whose aim is to deepen your understanding of magnetism through presenting information clearly and concisely. The dashboard feature enables you to view your progress through the lessons and helps you see just how much you have left to review. Be sure to take advantage of the short multiple-choice quizzes at the end of each lesson to recap what you've learned.
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.
2. Magnetic Field: Definition & Creation
After completing this lesson, you will be able to explain what a magnetic field is, how they are created, and suggest some uses for magnetic fields. A short quiz will follow.
3. 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.
4. 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.
5. Electric Motors & Generators: Converting Between Electrical and Mechanical Energy
Both generators and electric motors are common devices in everyday life, but how do they work and what is the difference between them? In this lesson, we'll explore both of them, which may produce different results but are actually more similar than they may seem.
6. Faraday's Law of Electromagnetic Induction: Equation and Application
Electromagnetic induction allows us to induce voltage with the movement of a magnetic field. Credited to Michael Faraday, this discovery was not only groundbreaking at the time, but it has since led to many applications in everyday life.
7. The Biot-Savart Law: Definition & Examples
After watching this lesson you will be able to explain what the Biot-Savart Law is, and use the simplified version to solve problems. A short quiz will follow.
8. Ampere's Law: Definition & Examples
After watching this video, you will be able to explain what Ampere's Law is, and use Ampere's Law for a long, straight, current-carrying wire to solve problems. A short quiz will follow.
9. Maxwell's Equations: Definition & Application
After watching this video, you will be able to explain what Maxwell's equations are, the basic principles behind each one, and what benefits they have led to in society. A short quiz will follow.
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Other chapters within the Praxis Physics (5265): Practice & Study Guide course
- Praxis Physics: Scientific Inquiry & Social Perspective
- Praxis Physics: Scientific Procedures & Techniques
- Praxis Physics: Vectors & Scalars
- Praxis Physics: Kinematics
- Praxis Physics: Motion
- Praxis Physics: Oscillations
- Praxis Physics: Work, Energy & Power
- Praxis Physics: Linear Momentum
- Praxis Physics: Rotational Motion, Collisions & Conservation
- Praxis Physics: Laws of Gravitation
- Praxis Physics: Fluid Mechanics
- Praxis Physics: Electrical Forces & Fields
- Praxis Physics: Potential & Capacitance
- Praxis Physics: Direct Current Circuits
- Praxis Physics: Optics & Waves
- Praxis Physics: Heat, Energy & Thermodynamics
- Praxis Physics: Modern Physics & Atomic Structure
- Praxis Physics: Content Knowledge Flashcards