About This Chapter
AP Physics C: Work, Energy, and Power - Chapter Summary and Learning Objectives
If physics is about moving objects, then work, or an applied force that creates movement, is at the heart of this science. In this chapter, you'll learn the formal definitions of work, energy, and power as well as how the three are related. You'll look at experiments and situations that will help you understand the concepts in each video. You'll see the different types of energy in action and how energy works within a system. This chapter is designed to teach you:
- The definitions of work, energy, and power
- The equations relating work, energy, and power
- How to make calculations about work
- The different types of energy
|Work: Definition and Mathematics||Take a look at how physicists define work and the formula that relates it to energy.|
|Work Done by a Variable Force||See how an object is affected by a changing force and the calculations you can make.|
|What is Energy? - Definition and Significance in Nature||Learn the definition of energy and how it works in the world.|
|Kinetic Energy to Potential Energy: Relationship in Different Energy Types||Understand the different types of energy and how they are related.|
|Potential Energy Curves||Explore these graphs that relate energy to an object's position.|
|Work-Energy Theorem||Discover this fundamental concept that deals with energy from work applied to particles.|
|What is Mechanical Energy? - Definition and Examples||Take a look at how mechanical systems include both potential and kinetic energy.|
|Conservation of Mechanical Energy||Understand how energy flows within an isolated mechanical system.|
|Power||Learn what power means to physicists and the rate of energy transfer.|
1. Work: Definition, Characteristics, and Examples
Pushing a wall all day may feel like work, but unless you get that wall moving you're not doing any work according to the rules of physics. In this video lesson, you'll learn how work is defined as well as how to calculate the amount of work done on an object.
2. Work Done by a Variable Force
Doing work on an object is a simple concept: we apply a certain force over a certain distance. But in real life, that force is rarely constant. Therefore, we need to understand variable forces and be able to calculate them accurately.
3. What is Energy? - Definition and Significance in Nature
This lesson describes the nature of energy and how it is transferred from one source into another. Additionally, it will describe the significance of energy in natural systems.
4. Kinetic Energy to Potential Energy: Relationship in Different Energy Types
This video defines and describes kinetic and potential energy. You'll learn how different types of energy can be classified as potential and kinetic. You'll also find out how kinetic and potential energy are transformed.
5. Work-Energy Theorem: Definition and Application
Work and energy are closely related in physics. In this lesson, you'll learn what that relationship is as well as how we can apply it to various situations.
6. What is Mechanical Energy? - Definition & Examples
In physics, energy is how work gets done. This video describes one important type of energy, mechanical energy, and provides examples of both kinetic and potential mechanical energy.
7. Pulleys: Basic Mechanics
Like other simple machines, pulleys can help us lift and move heavy loads with less effort. In this video lesson, you'll learn how pulleys do this as well as how this is possible while still obeying the law of conservation of energy.
8. Conservation of Mechanical Energy
Energy comes in many forms and for any system can never be created or destroyed. This holds true for mechanical energy, which also obeys this law of conservation of energy. In this video lesson, you'll explore how mechanical energy is converted or transferred between forms and objects.
9. Power: Definition and Mathematics
Work involves moving an object with a force, but power tells us how quickly that work is done. In this lesson, you will learn about how power depends on both work and time as well as see examples of how to calculate power.
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Other chapters within the AP Physics C - Mechanics: Exam Prep course
- AP Physics C: Vectors
- AP Physics C: Kinematics
- AP Physics C: Acceleration, Velocity, & Gravity
- AP Physics C: Newton's First Law of Motion
- AP Physics C: Newton's Second Law of Motion
- AP Physics C: Newton's Third Law of Motion
- AP Physics C: Linear Momentum
- AP Physics C: Rotational Motion
- AP Physics C: Laws of Gravitation
- AP Physics C: Oscillations
- AP Physics C - Mechanics Flashcards