CK-12 Physical Science Concepts - For Middle School

http://www.ck12.org Introduction The surfer in this photo is dwarfed by the immense wave he’s riding, yet he’s managing to use t ...

http://www.ck12.org Chapter 5. Energy 5.1 Energy Define energy. Give the SI unit for energy. Identify different forms of energy ...

5.1. Energy http://www.ck12.org Q:It takes energy to play tennis. Where does this boy get his energy? A:He gets energy from the ...

http://www.ck12.org Chapter 5. Energy Review How is energy defined in science? What is the SI unit for energy? Name two forms t ...

5.2. Kinetic Energy http://www.ck12.org 5.2 Kinetic Energy Define kinetic energy. Show how to calculate the kinetic energy of a ...

http://www.ck12.org Chapter 5. Energy Let’s consider an example. TheFigure5.2 shows Juan running on the beach with his dad. Juan ...

5.2. Kinetic Energy http://www.ck12.org b. velocity. c. distance. d. acceleration. The bowling ball in theFigure5.3 is whizzing ...

http://www.ck12.org Chapter 5. Energy 5.3 Potential Energy Define potential energy. Show how to calculate gravitational potenti ...

5.3. Potential Energy http://www.ck12.org Gravitational Potential Energy Potential energy due to the position of an object above ...

http://www.ck12.org Chapter 5. Energy FIGURE 5.5 Q:The boy in theFigure5.6 is giving the elastic band of his slingshot potential ...

5.3. Potential Energy http://www.ck12.org Gravitational potential energy is due to the position of an object above Earth’s surf ...

http://www.ck12.org Chapter 5. Energy 5.4 Forms of Energy Identify and describe different forms of energy. This musician’s ele ...

5.4. Forms of Energy http://www.ck12.org Seven Forms of Energy The different forms of energy are defined and illustrated below. ...

http://www.ck12.org Chapter 5. Energy FIGURE 5.9 The bright lights on this stage use elec- trical energy. They are wired into th ...

5.4. Forms of Energy http://www.ck12.org Sound energyis a form of mechanical energy that starts with a vibration in matter. For ...

http://www.ck12.org Chapter 5. Energy FIGURE 5.11 ...

5.5 Energy Conversion 5.5 Energy Conversion Define energy conversion. Give examples of energy changing from one form to another ...

http://www.ck12.org Chapter 5. Energy changes happen. You can see other examples of energy changing form at this URL: http://fi. ...

5.5. Energy Conversion http://www.ck12.org FIGURE 5.13 A:David could climb up the steps to the top of the slide. It takes kineti ...

http://www.ck12.org Chapter 5. Energy 5.6 Non-Renewable Energy Resources Define nonrenewable resource. Identify nonrenewable en ...