Law of conservation energy

  • Forces always occur in pairs that are equal in size but opposite in direction. 
  • Overall the total energy of the pair of objects in the universe, you can assume that the total energy of the whole universe must be constant. 
  • Thermodynamics is largely  about simplyfing things so that they can be studied and measured. 
  • Mechanical energy - either potential energy, due to its mass and position in a gravitational field, or kinetic…


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