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Ch 14: AP Physics 2: Conservation Principles

About This Chapter

It's easy to get ready for the AP Physics 2 exam with the helpful material covering conservation principles found in this chapter. Our short text and video lessons present this information in an easy-to-follow way that you can review as many times as needed to ensure you get the best score you can on the exam.

AP Physics 2: Conservation Principles - Chapter Summary

These engaging lessons cover conservation principles in physics, including the first law of thermodynamics and the definitions of power and work as they're explained in physics. Professional instructors have created these informative lessons, so you can feel confident that you're learning all you need to know about these topics. If you need to go back and review just one part of a video lesson, or skip ahead to a section you want to review, use the video tabs feature found in the Timeline. As you move through the lessons, feel free to contact an instructor if you need help. This chapter is designed to help you do the following:

  • Read changes in heat and energy diagrams
  • Measure the internal energy of a system
  • Use the object model to calculate the expected behavior of a system
  • Calculate changes in the potential and kinetic energy of a system
  • Understand the application of the work-energy theorem
  • Describe work done by a variable force
  • Give an example of a pressure-volume diagram
  • Name the mechanisms of heat transfer
  • Plot volume and pressure as they're found in the thermodynamic process
  • Define the atomic spectrum
  • Explain the spectra associated with nuclear or electronic transitions
  • Apply the conservation of energy and mass to a natural phenomenon

13 Lessons in Chapter 14: AP Physics 2: Conservation Principles
Test your knowledge with a 30-question chapter practice test
Internal Energy of a System: Definition & Measurement

1. Internal Energy of a System: Definition & Measurement

We often talk about individual types of energy, but how do you measure total energy? One way is to find the internal energy of a system. Let's learn what it means and how it is measured.

Calculating Changes in Kinetic & Potential Energy of a System

2. Calculating Changes in Kinetic & Potential Energy of a System

A system of interacting objects can have both kinetic and potential energy. As potential energy changes, this can change the kinetic energy of the system, too. In this lesson, learn about these important types of energy and how they can change.

Work: Definition, Characteristics, and Examples

3. 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.

Power: Definition and Mathematics

4. 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.

Work-Energy Theorem: Definition and Application

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.

Work Done by a Variable Force

6. 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.

Pressure-Volume Diagram: Definition & Example

7. Pressure-Volume Diagram: Definition & Example

Pressure and volume are two variables that relate to a parcel of gas. This lesson explores how work done on a parcel of gas in a cylinder changes its pressure and volume.

Mechanisms of Heat Transfer: Conduction, Convection & Radiation

8. Mechanisms of Heat Transfer: Conduction, Convection & Radiation

There are three main ways that heat is transferred between substances or objects. In this video lesson you'll learn about each one, and identify the differences between them.

First Law of Thermodynamics: Law of Conservation of Energy

9. First Law of Thermodynamics: Law of Conservation of Energy

This video describes the first law of thermodynamics. Several examples of the application of this law are discussed. The significance of the law and its practical application are discussed as well.

Changes in Heat and Energy Diagrams

10. Changes in Heat and Energy Diagrams

Did you know that temperature and heat are not the same thing? Did you know that the temperature of water doesn't change when it boils? This lesson describes the relationship between heat and temperature. Diagrams are used to illustrate the relationship between heat and temperature during phase changes.

Plotting Pressure vs. Volume for a Thermodynamic Process

11. Plotting Pressure vs. Volume for a Thermodynamic Process

Pressure and volume are measured in order to determine work done in some systems. In this lesson we will learn how to plot pressure and volume and what we can calculate from the plot.

Atomic Spectrum: Definition, Absorption & Emission

12. Atomic Spectrum: Definition, Absorption & Emission

In this lesson, we'll discuss the meaning of the term 'atomic spectrum' and distinguish between the two main types of atomic spectra: absorption and emission spectra. We'll also describe how each forms.

Applying Conservation of Mass & Energy to a Natural Phenomenon

13. Applying Conservation of Mass & Energy to a Natural Phenomenon

Einstein derived an equation that relates mass to energy. In this lesson, we will investigate what this equation means and we will go through a few examples using it.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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