The laws of conservation of energy, momentum, and angular momentum are all derived from classical mechanics.

With respect to classical physics, conservation laws include conservation of energy, mass (or matter), linear momentum, angular momentum, and electric charge.

In all of physics there are only six conservation laws. Each describes a quantity that is conserved, that is, the total amount is the same before and after something occurs.

Answer. Conservation of momentum.

The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed. For example, the carbon atom in coal becomes carbon dioxide when it is burned. The carbon atom changes from a solid structure to a gas but its mass does not change.

According to this law the mass of an object or collection of objects never changes over time, no matter how the constituent parts rearrange themselves. In other words, the mass can neither be created nor destroyed.

conservation law. n. Any of various principles, such as the conservation of charge and the conservation of energy, directly related to principles of symmetry and requiring some measurable property of a closed system to remain constant as the system changes.

principles of physical science: Conservation laws and extremal principles. It is a consequence of Newton’s laws of motion that the total momentum remains constant in a system completely isolated from external influences. The only forces acting on any part of the system are those exerted by other parts; if….

In classical physics, laws of this type govern energy, momentum, angular momentum, mass, and electric charge. In particle physics, other conservation laws apply to properties of subatomic particles that are invariant during interactions.