This lesson points out that the motion of objects (velocity or acceleration) is almost never constant, and applies this idea to the motion of a person walking. The discussion covers the energy transfers involved in...
This lesson builds upon the previous two (Newton's Second Law and the First Law of Thermodynamics) by explaining that conservation of energy is not perfectly observed, in that energy is lost as it is transferred from...
This lesson introduces students to the use of flowing or falling water (hydropower) to perform work, particularly electric power generation. Topics include the history of hydropower development, the invention of...
This lesson provides an introduction to the use of the sun's energy. Topics include the history of solar energy usage and its more recent adaptations. There is also discussion of how the sun produces and radiates energy...
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