About This Chapter
Who's it for?
Anyone who needs help learning or mastering college physical science material will benefit from taking this course. There is no faster or easier way to learn the topic. Among those who would be helped are:
- Students who have fallen behind in understanding electric circuit fundamentals or working with electrical resistance
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
- Students who prefer multiple ways of learning science (visual or auditory)
- Students who have missed class time and need to catch up
- Students who need an efficient way to learn about electric power and electricity
- Students who struggle to understand their teachers
- Students who attend schools without extra science learning resources
How it works:
- Find videos in our course that cover what you need to learn or review.
- Press play and watch the video lesson.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Verify you're ready by completing the Electric Power & Electricity chapter exam.
Why it works:
- Study Efficiently: Skip what you know, review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the Electric Power & Electricity chapter exam to be prepared.
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Students will review:
This chapter helps students review the concepts in an Electric Power & Electricity unit of a standard college physical science course. Topics covered include:
- Electrical currents
- Insulators and conductors
- Voltage sources
- Electric potential
- Electric charge and force
- Applied electricity
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. 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.
3. 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.
4. 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.
5. 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.
6. 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.
7. Voltage Sources: Energy Conversion and Examples
We use them every day, but no one really gives them much thought. What are we talking about? Why, voltage sources, of course! Batteries and generators are two of the most common sources of voltage that power our daily lives. We'll look at them in detail to see how they work.
8. 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.
9. 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.
10. 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.
11. 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!
12. What is a Circuit Breaker? - Types & Overview
Circuit breakers protect electrical circuits from large current surges. In this lesson, we will discuss different types of circuit breakers and how they work.
13. Why Does Aluminum Foil Conduct Electricity?
Explore the electrical properties of aluminum by learning about what makes it a conductor of electricity. Then, discover what effect, if any, there is on aluminum's conductivity when it's in foil form.
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Other chapters within the Physical Science: Help and Review course
- Newton's Laws of Motion: Help and Review
- Energy and Momentum: Help and Review
- Thermodynamics in Physical Science: Help and Review
- Waves and Optics: Help and Review
- Magnetism: Help and Review
- Properties of Matter in Chemistry: Help and Review
- Elements, Compounds, Mixtures & Solutions: Help and Review
- Bonding in Chemistry: Help and Review
- Gases & Gas Laws: Help and Review
- Kinetics in Chemistry: Help and Review
- The Periodic Table in Physical Science: Help and Review
- Phase Changes for Liquids and Solids in Chemistry: Help and Review
- Atomic Theory and Atomic Structure: Help and Review
- Stoichiometry in Physical Science: Help and Review
- Radioactivity: Help and Review
- Acids, Bases, and Reactions in Chemistry: Help and Review
- Equilibrium in Physical Science: Help and Review
- Chemistry Lab Basics