学物理的方法（Methods of Physics）.docVIP

学物理的方法（Methods of Physics） First, learn the repeated analysis of physical concepts, pondering Can learn physics, largely determine whether thoroughly understood the physical concept of the physical concept to you, because of its abstraction, total: only to be sensed, not explained feeling, such as energy and inertia etc. these concepts rely on the teachers explain and not vivid expression the concept of the essence, and only themselves to do the tacit understanding in order to enjoy all of its content, the tacit feeling only by our repeated analysis, the concept of research experience can be, the so-called master introduce door in personal practice is this meaning. For example, the concept of friction, this is defined in the book: two interacting objects, when their relative movement occurs, will produce a kind of the resistance to relative motion on the contact surface, the force is called the force, through the analysis, we can find out the first concept of keywords in the sentence. Touch and relative motion and contact and block relative movement, then pondering these words the meaning of experience. Contact with each other tells the primary condition of friction, and it can be associated with gravity, magnetic force, etc., but the object that does not contact each other must have friction Obviously not, a Dang word reveals that the generation of friction is necessarily accompanied by relative motion. Then what is relative motion? Relative two words should refer to this two interacting objects, thus realize whether friction between two bodies in contact with each other on the basis of the two objects is to see whether there is relative motion instead of watching the two objects have a movement, contact on the surface of tell us the friction position, and impede the relative movement indicates that the friction role and direction, its role is to hinder the relative motion instead of hinder movement , so it should be the direction of direction and phase of movement