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新课程背景下的高考,其命题力图体现新课程理念,突出三维教学目标,将实验探究能力作为学生必须具备的科学素养之一。高考实验题能充分发挥指挥棒的作用,对中学物理实验教学产生积极的导向作用。下面我们来分析2016年高考理综新课标卷Ⅱ第23题。题目某同学利用图1(a)所示电路测量量程为2.5 V的电压表V的内阻(内阻为数千欧姆),可供选
The college entrance examination in the context of the new curriculum, the proposition to embody the concept of the new curriculum, highlight the three-dimensional teaching objectives, the ability of experimental inquiry as one of the students must have scientific literacy. College entrance examination questions can give full play to the role of the baton, physics teaching in secondary schools have a positive role in guiding. Let us analyze the 2016 college entrance examination science class standard volume Ⅱ 23 questions. Problem Some students use the circuit shown in Figure 1 (a) to measure the internal resistance of the voltmeter V (range of resistance is several thousand ohms) of 2.5 V, for the election