About This Chapter
How It Works:
- Identify the lessons in Prentice Hall Physical Science's Electricity chapter with which you need help.
- Find the corresponding video lessons within this companion course chapter.
- Watch fun videos that cover the electricity topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- Formulas for determining electric power
- Electrical energy and its applications
- Types of electric current
- Attractive and repulsive electric forces
- Electric force fields and diagrams
- Examples of conductors and insulators
- Coulomb's law
- Factors that impact electrical resistance
- Ohm's law
- Types of electric circuits
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1. 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.
2. What is Electrical Energy? - Definition & Examples
This lesson defines electrical energy and explores its role as a form of potential energy. It also offers an explanation of how it functions within electric fields and provides examples of its applications.
3. What is Electric Current? - Definition, Unit & Types
Like a river current is the flow of water molecules, electrical current is the flow of charged particles. In this lesson, we're going to explore what electrical current is, what causes it, and that, unlike a water current, electrical current doesn't always flow in one direction.
4. 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!
5. 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.
6. 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.
7. Electrical Resistance: Definition, Unit & Variables
We'll take a shopping trip to the mall to learn how electrical resistance works and how it is affected by resistivity, conductor dimensions, and temperature. We'll also take a look at several common appliances that take advantage of resistance to function.
8. Ohm's Law: Definition & Relationship Between Voltage, Current & Resistance
Did you know that electrical current is affected by the voltage and resistance in a circuit? In this lesson, we'll use Ohm's law, which tells us how current, voltage, and resistance are related, as we work through several electric circuit examples.
9. Electric Circuit Fundamentals: Components & Types
Electric circuits can be configured to power several loads, such as light bulbs, in series or in parallel. In this lesson, we'll look at both types of circuits and see how the voltage, current, and resistance are affected by installing additional loads.
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Other chapters within the Prentice Hall Physical Science: Online Textbook Help course
- Chapter 1: Science Skills
- Chapter 2: Properties of Matter
- Chapter 3: States of Matter
- Chapter 4: Atomic Structure
- Chapter 5: The Periodic Table
- Chapter 6: Chemical Bonds
- Chapter 7: Chemical Reactions
- Chapter 8: Solutions, Acids, and Bases
- Chapter 9: Carbon Chemistry
- Chapter 10: Nuclear Chemistry
- Chapter 11: Motion
- Chapter 12: Forces and Motion
- Chapter 13: Forces in Fluids
- Chapter 14: Work, Power, and Machines
- Chapter 15: Energy
- Chapter 16: Thermal Energy and Heat
- Chapter 17: Mechanical Waves and Sound
- Chapter 18: The Electromagnetic Spectrum and Light
- Chapter 19: Optics
- Chapter 21: Magnetism