About This Chapter
Who's it for?
This unit of our AP Physics C Homeschool course will benefit any student who is trying to learn about electric potential and capacitance. There is no faster or easier way to learn about potential and capacitance. Among those who would benefit are:
- Students who require an efficient, self-paced course of study to learn about electric potential energy, voltage sources, capacitors and Ohm's Law.
- Homeschool parents looking to spend less time preparing lessons and more time teaching.
- Homeschool parents who need a physics curriculum that appeals to multiple learning types (visual or auditory).
- Gifted students and students with learning differences.
How it works:
- Students watch a short, fun video lesson that covers a specific unit topic.
- Students and parents can refer to the video transcripts to reinforce learning.
- Short quizzes and a potential and capacitance unit exam confirm understanding or identify any topics that require review.
Potential and Capacitance Unit Objectives:
- Understand the relationship between electric force and an electric field.
- Learn how generators and batteries work as voltage sources.
- Use the formula for finding electric potential energy.
- Discover how particles in a charge collection are motivated to do work.
- Recognize the volt as a unit of electric potential.
- Determine how to find the electric potential between two points in a uniform electric field.
- Understand what capacitance is and how it is calculated.
- Identify the parts and types of fixed and variable capacitors.
- Explore how capacitors are constructed and how they are charged and discharged.
- Examine the relationship between voltage, current and resistance according to Ohm's Law.
- Understand the potential of spheres and cylinders.
1. 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.
2. 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.
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. Fixed & Variable Capacitors: Parts & Types
Capacitors are devices that store electrical energy. In this lesson, we will explore the various types of capacitors, how they work, and how to calculate equivalent capacitance.
5. The Potential of a Sphere
After watching this lesson, you will be able to explain what electric potential is, state and use the equation for the potential of a sphere, and plot a graph of electric potential with radius. A short quiz will follow.
6. The Potential of a Cylinder
After watching this video, you will be able to explain what electric potential is and solve problems using an expression for the electric potential of a cylinder. In AP Physics C, you should be able to derive the expression. A short quiz will follow.
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Other chapters within the AP Physics C: Homeschool Curriculum course
- AP Physics C - Kinematics: Homeschool Curriculum
- AP Physics C - Newton's Laws: Homeschool Curriculum
- AP Physics C - Work, Energy, & Power: Homeschool Curriculum
- AP Physics C - Linear Momentum: Homeschool Curriculum
- AP Physics C - Electrical Forces and Fields: Homeschool Curriculum
- AP Physics C - Direct Current Circuits: Homeschool Curriculum
- AP Physics C - Magnetism: Homeschool Curriculum