About This Chapter
1. Coulomb: Definition & Interactions
This article is about electric charges that make up the matter around us. Electric charge is measured in units called coulombs and comes in two types, positive and negative charge. We discuss where charge originates in a model of an atom and how an imbalance of charge leads to observable electrical interactions in our daily lives.
2. Superposition Theorem: Definition, Application & Examples
This lesson describes the superposition theorem, an important concept in physics in general. Here, we will apply the theorem to electricity in general and point out some important applications.
3. Ampere: Definition & Calculation
The ampere is the unit of electric current. It is abbreviated as A and may also be called amp or amps. Learn how to calculate amperes and see examples of amperes in everyday life.
4. Charles Coulomb: Discoveries & Overview
Charles Coulomb (June 14, 1736 - August 23, 1806) was a French physicist and military engineer. This lesson will cover his scientific achievements. After the lesson, take the quiz to test your knowledge.
5. Electric Fields: Definition & Examples
Learn what an electric field is, the types of electric fields, and the concept of electric field strength. Briefly investigate specific examples of the types of electric fields.
6. Electric Motor: Definition & Examples
In this lesson, you will learn what an electric motor is and how it works. Take the opportunity to look at some examples of the way in which electric motors are used in everyday life. A short quiz will follow.
7. Electrical Power: Definition & Types
Curious about the different types of electrical power? In this lesson, we'll define DC and AC power, provide a few examples, and provide a quiz to check your understanding.
8. J.J. Thomson's Cathode Ray Tube (CRT): Definition, Experiment & Diagram
J.J. Thomson's cathode ray tube experiments led to a very important scientific discovery, the electron. In this lesson learn what a cathode ray tube is and how J.J. Thomson made his discovery.
9. Ohm: Definition & Formula
All electrical circuits have resistance, and the basic unit of resistance is the ohm. This lesson provides a deeper understanding of the ohm, how to calculate resistance in ohms, and a quiz to test your understanding.
10. Parallel Circuits: Definition & Examples
In this lesson, learn more about parallel electrical circuits. We'll review some electrical circuit fundamentals, look at the defining characteristics of parallel circuits, and explore several concrete examples.
11. Positive Charge: Definition & Overview
Positive charges cause your hair to stand up on a cold day and can give you a shock when you touch a doorknob, but they also are responsible for holding atoms together. In this lesson, we'll learn what creates a positive charge and how it interacts with negative charges.
12. What is a Series Circuit? - Definition & Example
In this lesson, we'll define what a series circuit is and compare it with a parallel circuit. Keep reading to see practical examples of series circuits, see descriptions of the components used, and get explanations of the concept of equivalent circuits.
13. What is an Ammeter? - Definition & Function
In this lesson, we'll learn what an ammeter is and what it has to do with electric circuits. We'll also talk about the proper ways to connect an ammeter in series and parallel circuits.
14. What Is Electric Potential? - Definition & Formula
In this lesson, discover what electric potential is and how we measure it. Learn about the scientist Alessandro Volta and why his work led us to name a unit of measurement after him.
15. What Is Electricity? - Definition & Concept
Learn the history of electricity, from Ben Franklin's kite experiment to laptop batteries. Explore the many different ways electricity is measured, generated, and stored.
16. What is Electrolysis? - Definition, Process & Facts
Did you know electrolysis is able to facilitate the decomposition of substances? In this lesson, you'll learn more about the process of electrolysis, after which, you can test your own expertise on the subject with a short quiz.
17. 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.
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Other chapters within the General Studies Science: Help & Review course
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- Drawing Conclusions from a Scientific Investigation
- Energy & Heat Overview
- Essential Biology Concepts
- Essential Chemistry Concepts
- Essential Concepts in Physics
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- Genetics & Evolution Overview
- Food Webs Overview
- Components of Living Things
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