Are you looking for a reading resource about the efficiency of power systems? Here is one that introduces the output/input ratio, measurement of energy by joules or calories, and efficiency ratings. For STEM classes that are learning about power systems, this would be a useful handout.

Concepts

thermal energy, energy, work

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Additional Tags

work, power system, efficiency rating, energy, thermal energy, alterntaive fuel, science

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Pros

• Part of larger unit on technology by the Texas State Energy Conservation Office
• Well-organized and attractive format
• Adaptable to Common Core State Standards for literacy in science and technical subjects

Cons

• Doesn't stand alone very well, but as the intended introduction to a mini unit on technology, it is a valuable resource

Common Core

RST.6-8.1 RST.6-8.2 RST.6-8.4 RST.6-8.5 RST.6-8.6 RST.6-8.10