en.wikipedia.org/wiki/Momentum

... the total momentum is constant. This fact, known as the **law of conservation of**
**momentum**, is implied by Newton's laws of motion.

www.physicsclassroom.com/class/momentum/Lesson-2/Momentum-Conservation-Principle

This **law** of **momentum conservation** will be the focus of the remainder of Lesson
2. To understand the basis of **momentum conservation**, let's begin with a short ...

www.khanacademy.org/science/physics/linear-momentum/momentum-tutorial/a/what-is-conservation-of-momentum

Why is **momentum** conserved? **Conservation of momentum** is actually a direct
consequence of Newton's third **law**. Consider a collision between two objects, ...

www.grc.nasa.gov/www/k-12/airplane/conmo.html

Derivation of one dimensional Euler Equation for **conservation of momentum**. ...
but only changed through the action of forces as described by Newton's **laws** of ...

physicscatalyst.com/Class9/momentum_conservation.php

**Law of conservation** of linear **momentum** is a extremely important consequence
of Newton's third law of motion in combination with the second law of motion.

www.britannica.com/science/conservation-of-momentum

**conservation of momentum**: General **law** of physics according to which the
quantity called **momentum** that characterizes motion never changes in an
isolated ...

www.nuclear-power.net/laws-of-conservation/law-of-conservation-of-momentum

In general, the **law of conservation of momentum** or principle of momentum
conservation states that the momentum of an isolated system is a constant.

scienceworld.wolfram.com/physics/ConservationofMomentum.html

This entry contributed by Leonardo Motta. **Conservation of momentum** is a
fundamental **law** of physics which states that the **momentum** of a system is
constant if ...