例一在空中飞行的子弹().A.只具有动能B.只具有势能C.没有动能,也没有势能D.有动能,也有势能错因点评部分学生没有选D,原因是没有理解动能和重力势能的概念,或者对物体具有的能的分析不全面,从而导致错误的产生.正确思路物体由于运动而具有的能叫做动能;物体由于被举高而具有的 Example 1 Bullets flying in the air ().A. Only has kinetic energy B. Only has potential energy C. No kinetic energy, no potential energy D. There is kinetic energy, there is also potential energy due to comments Some students did not choose D because of the lack of understanding of kinetic energy and The concept of gravitational potential energy, or the analysis of the energy possessed by an object, is not comprehensive, resulting in the production of errors. Correctly thinking objects have the ability to be called kinetic energy due to motion; objects have to be lifted due to their height.