Here's a breakdown:

* Mass (m): A measure of the amount of matter in an object.

* Velocity (v): A measure of how fast an object is moving and in what direction.

Momentum (p): A measure of an object's inertia in motion. It's a vector quantity, meaning it has both magnitude and direction.

Formula:

p = m * v

Key Points:

* Momentum is conserved in a closed system, meaning the total momentum before and after an interaction remains the same.

* A larger mass or higher velocity results in greater momentum.

* Momentum is important in understanding collisions, explosions, and other interactions between objects.