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Energy 2
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TechnicalPotential well
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MathematicalStationary points
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TechnicalEquilibrium & stability1 Task
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Work
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MathematicalDot-product
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TechnicalHeat & conservative forces1 Task
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Energy conservation (1st law of thermodynamics)2 Tasks
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MathematicalSign conventions
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TechnicalEnergy conservation vs momentum conservation1 Task
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Work-energy theorem
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Energy in rolling
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PhilosophicalThe human body "machine"1 Task
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TechnicalPower
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EndingSummary of the Energy discipline
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Skill 10 of 14
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Work-energy theorem
In every-day life we often have not too many types of energies involved.
- Let go of a basketball, and gravity does work on it so it speeds up (and this work converts stored potential energy to kinetic).
- Push on your friend on a bike to help him gain speed, and your pushing force does work on him in order to give him kinetic energy.
- A spacecraft in space pushes forwards with its rocket engines, and this pushing force does work which speeds up the craft.

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References:
- ‘Conservation of Energy. Readings on the Origins of the First Law of Thermodynamics. Part I’ (article), Jaime Wisniak, Scielo, Educación Química: Para Quitarle el Polvo, vol. 19, issue 2, 2008, www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0187-893X2008000200013 (accessed Jun. 24th, 2020)
- ‘Sears and Zemansky’s Univesity Physics with Modern Physics’ (book), Hugh D. Young & Roger A. Freedman, Pearson Education, 13th ed., 2012
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