<human>:  Explain the concept of momentum in physics
<bot>: Momentum is a fundamental concept of physics. It is the product of an object's mass and velocity—the momentum of an object is equal to the mass times the velocity. Momentum is a measure of an object's ability to continue moving in the same direction and can be referred to as an object's "quantity of motion." Momentum is a vector quantity, meaning it has both a magnitude (amount) and a direction. The faster and heavier an object is, the more momentum that object will have. Momentum is an important concept in physics and is also closely related to Newton's laws of motion. When a force is applied to an object, it will change the object's momentum.