山西省忻州市第一中学高中物理2.11简单的逻辑电路预习案(无答案)新人教版选修3_1.doc

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1简单的逻辑电路【教学目标】1初步了解简单的逻辑电路及表示符号。2通过实验,知道“与” 、 “或” 、 “非”逻辑电路中结果与条件的逻辑关系。3知道真值表,会用真表来表示一些简单的逻辑关系。4通过简单的逻辑电路的设计,体会逻辑电路在现实生活中的意义。【预习任务】1阅读课本 P72的内容及图 2.11-1,完成下列任务:(1)说出模拟信号与数字信号的特点?(2)识记数字电路及逻辑电路的概念。2阅读课本 P72“与”门的内容,完成下列任务:(1) “与”的逻辑关系是指:(2) “与”门的门电路的符号。3阅读课本 P74“或”门的内容,完成下列任务:(1) “或”的逻辑关系是指:(2) “或”门的门电路的符号。4阅读课本 P74“非”门的内容,完成下列任务:(1) “非”的逻辑关系是指:(2) “非”门的门电路的符号。5写出“与” 、 “或” 、 “非”门的真值表6阅读教材例题,了解逻辑电路的简单应用。【自主检测】1课本 P77问题与练习 1 题。2课本 P78问题与练习 2 题。23课本 P78问题与练习 3 题。4走廊里有一盏灯,在走廊两端各有一个开关,我们希望不论哪个开关接通都能使灯点亮,那么设计的电路是【 】A “与”门电路 B “非”门电路C “或”门电路 D上述答案都有可能【组内检查】知道“与” 、 “或” 、 “非”逻辑电路中结果与条件的逻辑关系

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