5 2 conservation of momentum according to the law of conservation of momentumthe total momentum in a system remains the same if no external forces act on the system consider the two types of collisions that can occur vocabulary elastic collisiona collision in which objects collide and bounce apart with no energy loss. Theory the law of conservation of momentum states that in a closed system the total momentum of masses before and after their collision is constant momentum which is conserved this states that when two things collide the sum of the momentum will be the same before the collision as after this law also states that the. The law of conservation of momentum states that in the absence of an external force the momentum of a system remains unchanged true is the following sentence true or false if a system undergoes changes were in all the forces are internal such as an atomic nuclei undergoing nuclear decay then that momentum of the system before and after the event is the same. Momentum and conservation of momentum answer key author playoffignationio 2021 02 28t000000 0001 subject momentum and conservation of momentum answer key keywords momentum and conservation of momentum answer key created date 2 28 2021 95531 am