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随着高考的改革,高考物理试题对实验的考核不断地从简单的背诵转向对实验的思想、方法和原理的理解以及实验仪器的使用上,今年的三道高考实验题更是别具一格,源于教材而又都有新的变化,出人意料,发人深省。第14题考查的是“验证碰撞中的动量守恒”,这是一个近些年来全国高考唯一没有考过的学生实验,也必然是考前总复习的重点之一,有关这个实验的练习题在各地模拟试题中经常见到,“别忘了测量小球的直径”在学生的记忆中不断地被强化,这种定势思维导致许多考生不假思索地就选了“(C)测量 A 球或 B 球的
With the reform of the college entrance examination, the physics examination questions for the college entrance examination on the examination of the experiment constantly shift from simple memorization to the understanding of the ideas, methods and principles of the experiment and the use of experimental instruments. The three college entrance examination experiment questions this year are unique. Textbooks have new changes that are unexpected and thought-provoking. Question 14 examines the “conservation of momentum conservation in collisions.” This is the only student experiment that has not been studied in the national college entrance examination in recent years. It must be one of the focuses of the review before the exam. Exercises related to this experiment are It is often seen in simulation tests around the country that “Don’t forget to measure the diameter of the ball” is continuously strengthened in the memory of students. This fixed thinking led many candidates to choose "(C) to measure A ball or B without hesitation. Ball