CK-12 Physical Science - For Middle School

17.1. Types of Energy http://www.ck12.org Defining Energy The concept of energy was first introduced in the chapter "States of M ...

http://www.ck12.org Chapter 17. Introduction to Energy FIGURE 17.3 All of these photos show things that have kinetic energy beca ...

17.1. Types of Energy http://www.ck12.org Potential Energy Did you ever see a scene like the one inFigure17.4? In many parts of ...

http://www.ck12.org Chapter 17. Introduction to Energy You Try It! Problem:Kris is holding a 2-kg book 1.5 m above the floor. Wh ...

17.1. Types of Energy http://www.ck12.org FIGURE 17.7 Energy continuously changes back and forth between potential and kinetic e ...

http://www.ck12.org Chapter 17. Introduction to Energy Kinetic energy is the energy of moving matter. Things with kinetic energ ...

17.1. Types of Energy http://www.ck12.org Based on the examples in this lesson, how would you define mechanical energy? What mi ...

http://www.ck12.org Chapter 17. Introduction to Energy 17.2 Forms of Energy Lesson Objectives Identify different forms of energ ...

17.2. Forms of Energy http://www.ck12.org Comparing Forms of Energy Energy, or the ability to do work, can exist in many differe ...

http://www.ck12.org Chapter 17. Introduction to Energy FIGURE 17.10 Chemical energy is stored in wood and released when the wood ...

17.2. Forms of Energy http://www.ck12.org FIGURE 17.12 In the sun, hydrogen nuclei fuse to form helium nuclei. This releases a h ...

http://www.ck12.org Chapter 17. Introduction to Energy Electromagnetic Energy Energy that the sun and other stars release into s ...

17.2. Forms of Energy http://www.ck12.org How Energy Changes Form Energy often changes from one form to another. For example, th ...

http://www.ck12.org Chapter 17. Introduction to Energy FIGURE 17.17 The U.S. government’s Energy Star program certifies the ener ...

17.3. Energy Resources http://www.ck12.org 17.3 Energy Resources Lesson Objectives Describe nonrenewable energy resources. Iden ...

http://www.ck12.org Chapter 17. Introduction to Energy FIGURE 17.18 Whitewater rafting is an exciting sport. of years. Nonrenewa ...

17.3. Energy Resources http://www.ck12.org sunlight to stored chemical energy in food, which was eaten by other organisms. After ...

http://www.ck12.org Chapter 17. Introduction to Energy FIGURE 17.21 Do you remember Japan’s 2011 nuclear disaster? (Note: the ma ...

17.3. Energy Resources http://www.ck12.org Renewable Energy Resources Renewable resourcesare natural resources that can be repla ...

http://www.ck12.org Chapter 17. Introduction to Energy TABLE17.1:(continued) Renewable Energy Resource Example Biomass The store ...