scientists :(

• Antoine lavoisier is the father of chemistry
• Lavoisier propsed conservation of mass
• law of conservation of mass states that in every chemical reaction the total mass of the products is equal to the total mass of the reactants
• Galileo galilei said that kinetic energy can be converted into potential energy
• Christian Huygens said that in collision, the energy before and after collision were conserved
• Value of joles

  • 1 cal = 4.186 J
• Law of conservation of momentum states that the total momentum of an object is constant until acted upon by an external force