* Conservation of Energy: This states that energy cannot be created or destroyed, only transferred or transformed from one form to another.
* Conservation of Momentum: This states that the total momentum of a closed system remains constant. Momentum is a measure of mass in motion.
* Conservation of Mass: This states that the total mass of a closed system remains constant. This law is actually a consequence of the conservation of energy, as mass and energy are equivalent according to Einstein's famous equation E=mc².
* Conservation of Angular Momentum: This states that the total angular momentum of a closed system remains constant. Angular momentum is a measure of an object's tendency to rotate.
* Conservation of Charge: This states that the total electric charge of a closed system remains constant. This means that charge cannot be created or destroyed, only transferred.
There are also other conservation laws related to specific quantities, such as:
* Conservation of Baryon Number: This relates to the total number of baryons (protons and neutrons) in a system.
* Conservation of Lepton Number: This relates to the total number of leptons (electrons and neutrinos) in a system.
So, while there isn't a definitive number of "laws of conservation," there are a number of fundamental principles that govern how certain quantities behave in closed systems.
