The Natural Laws of Motion continue to have the same direction if left to itself.

Motion is a process of movement or behavior of an object that has traveled over a distance with time, as measured by an observer in a frame of reference. Only relative motion can be measured and is meangingful.

Motion can change the state of matter. When an object is at rest, we say it has mass. When it starts to move, we can measure its dynamics with terms like momentum, force, kinetic energy, etc. These are merely to describe the magnitude and effects of the motion. As the speed gets higher, the energy gets intensified. For instance, when water gets the right amount of heat, the molecules in the water will gain enough energy to escape in the form of steam.

Let us imagine an object of mass m at rest in space-motionless. We can say it has an inertia of mass m. First, we apply a little force on it, just enough for it to move at a constant velocity; then we can have what we call momentum=mv. If we continue to apply more force such that the object begins to accelerate, we will get to the next level as force, which is F=ma.

Hence, we can see how mass and motion can produce energy.