Relier Pairs ScienceVersion en ligne What do you know about energy? par Christina Spalding 1 Potential energy 2 Mechanics 3 Mechanical energy 4 Physical law 5 First law of thermodynamics 6 Kinetic energy 7 Law of conservation of energy 8 Law of conservation of mass 9 Energy Laws put in place by God to govern how things work in the universe. Energy cannot be created or destroyed it can only change forms. Study of motion. The ability to perform work. Energy that is being stored. Energy that is being used. Energy of motion. In a closed system, energy can neither be created nor destroyed, only transformed or transferred. Matter cannot be created or destroyed it can only change forms.