Discussion the spectrum of mechanics. the general study of the relationships between motion, forces, and energy is called mechanics. it is large field and its study is essential to the understanding of physics, which is why these chapters appear first.Discussion introduction. if you are vertebrate with eyes, then you have ses. the same goes for octopus, squid, and cuttlefish (which are all cephalopods). In mathematics, physics, and engineering, euclidean vector (sometimes called geometric or spatial vector, oras heresimply vector) is geometric object that has magnitude (or gth) and direction. The physics clroom topics d kinematics. the motion of objects in onedimension are described using word, diagrams, numbers, graphs, and equations.