Skill 7 of 14
In Progress

Energy conservation (1st law of thermodynamics)

  • With no fuel (no stored chemical energy) your car won’t start moving. Because, where would the kinetic energy come from?
  • With some kinetic energy, the satellite is moving. And it keeps moving, obviously. Of course, it doesn’t suddenly speed up without some energy added, or slow down without some kinetic energy being removed.1

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  1. Avatar - All energy is borrowed and someday you have to give it back’ (film), Youtube, MoviQuotes, 2019, www.youtube.com/watch?v=V0m5u3jGcxc (accessed Jun. 24th, 2020)
  2. Avatar’ (film, starring Sam Worthington, Zoe Saldana & Sigourney Weaver), James Cameron, Twentieth Century Fox, 2009, www.imdb.com/title/tt0499549
  3. First Law of Thermodynamics’ (web page), Douglas Quattrochi, Massachusetts Institute of Technology, MIT, 2006, web.mit.edu/course/16/16.unified/www/SPRING/thermodynamics/notes/node14.html (accessed Jun. 24th, 2020), chapter 2.1
  4. 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)
  5. Sears and Zemansky’s Univesity Physics with Modern Physics’ (book), Hugh D. Young & Roger A. Freedman, Pearson Education, 13th ed., 2012