What is the study of motion forces and energy?
The branch of physical science, dealing with motion of bodies, forces, their energies etc. is called mechanics.
It is further divided into dynamics, statics and kinematics.
Under kinematics, we study motion of bodies without going into the cause (force) of motion, we study about velocity and acceleration mainly.
Under dynamics, the forces are taken into consideration and according to the Newton's second law, it directly impacts the acceleration and as result the motion of bodies.
In statics, we study bodies in equilibrium.
I don't know if I was able to answer your question.
In fact, your question is quite difficult to understand.