For an object in motion, which of the following represents the product of mass and velocity?

The product of mass and velocity defines momentum, which is a key concept in physics related to motion. Momentum is a vector quantity, meaning it has both magnitude and direction. It is calculated using the formula ( p = mv ), where ( p ) represents momentum, ( m ) is the mass of the object, and ( v ) is its velocity. This relationship highlights how an object's momentum increases with greater mass and speed, making it important for understanding how objects behave when they collide or interact in motion.

In the context of the other choices, while energy is related to motion, it specifically refers to the ability to do work or produce change, without directly involving mass and velocity in its simplest form. Force relates to the change in momentum over time (as described by Newton's second law) but is not the product of mass and velocity itself. Impulse refers to the change in momentum when a force is applied over time, which again ties back to momentum but does not represent the mass-velocity product directly. Therefore, the correct answer is clearly momentum, as it aligns perfectly with the definition provided in the question.