1.相互接触的物体是否一定会产生力的作用?答:“力是物体对物体的作用”的“作用”一词,是对具体物体间的推、拉、提、压、吸、斥等方式的概括,即“作用”是物体通过这些具体的方式而表现出来的。力的作用分为接触作用和非接触作用,因此,作用并不一定要接触,接触也并不一定有作用。例如地球与树上的苹果虽然没有接触,但两者之间却存在着相互的引力。又如在上图中,物体 A 的侧壁与竖直墙壁 1. Will the objects in contact with each other produce a force? A: The term “force is the effect of an object on an object” is the term “action”. It is the push, pull, lift, and pressure of a specific object. The generalization of the way of absorption and repulsion, that is, “action” is an object represented by these specific methods. The role of force is divided into contact and non-contact. Therefore, the effect does not have to be contacted, and the contact does not necessarily have an effect. For example, although there is no contact between the earth and the apple on the tree, mutual gravitation exists between the two. Also in the figure above, the side wall of the object A and the vertical wall