About This Chapter
Electricity and Magnetic Force - Chapter Summary
Do you know how magnetic fields are created? Can you identify variables that affect electromagnetic induction? If not, you can use this chapter to hone your knowledge of topics like repulsion and attraction, the significance of arrow direction and spacing, and variables affecting the force between two charged particles. You can also discover how charge density affects the voltage of a battery and therefore its electric potential. Instructors explain why a material's atomic properties determine its conductivity and use a compass to illustrate the existence of magnetic fields.
Once you've got a firm grasp of permanent magnets' and ferromagnetic materials' electron configurations, watch other lessons about how magnetic fields can be created with an electric current. Factors affecting the force and direction of a magnetically charged particle are covered as well, along with Faraday's law and the definitions of electromagnetic induction and mutual inductance. You can wrap up your study of electricity and magnetic force by discovering the electromagnets found in the technology we use everyday to store data or generate power. By the end of this chapter, you should be familiar with the following topics:
- Electric potential
- Electric charges
- Magnetic force
- Magnetic fields
- Electromagnetic induction
This chapter on electricity and magnetic force includes a number of video lessons, each of which is accompanied by a self-assessment quiz. Use them, along with the transcripts, to review lesson summaries and access text lessons covering vocabulary terms.
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!
2. Electric Force Fields and the Significance of Arrow Direction & Spacing
Did you know that force fields don't just exist in science fiction movies? In this lesson, we'll explore the electric force fields that surround charged particles and how we can draw diagrams that represent them.
3. Coulomb's Law: Variables Affecting the Force Between Two Charged Particles
In the 18th century, Charles Coulomb uncovered the secrets of electrostatic force between charged particles. The results of his experiments led to what is now known as Coulomb's Law, which tells us how force, charge, and distance are all related.
4. Electric Potential: Charge Collections and Volt Unit
In this lesson, we'll find out that electric charges can be rather lazy until something motivates them to get work done. Find out what gives electric charges the potential to do work and how we measure that potential with something called voltage.
5. 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.
6. What is Electric Power?
Power is a word we use all the time, but do you really know what it means? We'll look at how electrical power relates to voltage, current and resistance and how knowing that relationship can help you in everyday life.
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.
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.
9. 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.
10. 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.
11. 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.
12. 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.
Earning College Credit
Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the FTCE Middle Grades General Science 5-9 (004): Test Practice & Study Guide course
- Structure and Behavior of Matter
- Trends of the Periodic Table
- Gas Laws
- Properties of Waves
- Basics of Thermodynamics
- The Electromagnetic Spectrum and Electric Units
- Plate Tectonics and Dating Methods
- Cycles and Layers of the Earth
- Space Science
- Cell Biology
- Process of DNA Replication
- The Transcription and Translation Process
- Chemical Reactions of Metabolism
- Overview of Cell Division
- Biology of Genetics
- Plant Biology Overview
- Human Anatomy & Physiology Overview
- Biological Evolution & Natural Selection
- Organism Classification & Phylogenesis
- Microbiology Overview
- Ecology & Florida
- Analyzing Scientific Data
- Scientific Principles
- FTCE Middle Grades General Science 5-9 Flashcards