CK-12 Physical Science Concepts - For Middle School

5.18. Heating Systems http://www.ck12.org FIGURE 5.39 Warm-air heating system. How a Thermostat Works Athermostat, like the one ...

http://www.ck12.org Chapter 5. Energy Vocabulary thermostat: Part of a heating system that monitors temperature and controls wh ...

5.19 Cooling Systems 5.19 Cooling Systems State the purpose of a cooling system. Explain how a refrigerator works. Describe the ...

http://www.ck12.org Chapter 5. Energy The Refrigerant The key to how a refrigerator or other cooling system works is the refrige ...

5.19. Cooling Systems http://www.ck12.org The __ turns the gas back into a liquid. Review What is the purpose of a cooling sy ...

http://www.ck12.org Chapter 5. Energy 5.20 External Combustion Engines Identify the purpose of a combustion engine. Define exte ...

5.20 External Combustion Engines FIGURE 5.42 Q:What type of energy does the piston have when it moves back and forth inside the ...

http://www.ck12.org Chapter 5. Energy Review Define combustion engine. What is an external combustion engine? Explain how an ex ...

5.21 Internal Combustion Engines 5.21 Internal Combustion Engines Define combustion engine and internal combustion engine. Expl ...

http://www.ck12.org Chapter 5. Energy A piston inside the cylinder moves upward, compressing the fuel-air mixture in the closed ...

5.21. Internal Combustion Engines http://www.ck12.org How Many Cylinders? Most cars have at least four cylinders connected to th ...

http://www.ck12.org Chapter 5. Energy 5.22 Mechanical Wave Describe mechanical waves. Define the medium of a mechanical wave. I ...

5.22 Mechanical Wave Types of Mechanical Waves There are three types of mechanical waves: transverse, longitudinal, and surface ...

http://www.ck12.org Chapter 5. Energy The article gives a dictionary definition of wave. What is the most important part of thi ...

5.23 Transverse Wave 5.23 Transverse Wave Describe transverse waves. Identify the crests and troughs of a transverse wave. Defi ...

http://www.ck12.org Chapter 5. Energy To see a transverse wave in slow motion, go to this URL: http://www.youtube.com/watch?v=g4 ...

5.23. Transverse Wave http://www.ck12.org FIGURE 5.46 FIGURE 5.47 Explore More At the following URL, review transverse waves and ...

http://www.ck12.org Chapter 5. Energy Sketch a transverse wave and label the crests and troughs. Infer how S waves might affect ...

5.24 Longitudinal Wave 5.24 Longitudinal Wave Describe a longitudinal wave. Identify compressions and rarefactions of a longitu ...

http://www.ck12.org Chapter 5. Energy FIGURE 5.48 Compressions and Rarefactions Notice in theFigure5.48 that the coils of the sp ...