山西省忻州市第一中学高中物理15.4广义相对论预习案(无答案)新人教版选修3_4.doc

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1广义相对论【教学目标】1通过阅读和引导讨论,初步了解广义相对论的几个主要观点及主要观测证据。2通过查阅资料和介绍,关注宇宙学研究的新进展。【预习任务】阅读课本,完成下列内容:1了解:广义相对论的两个基本原理是什么?(1)(2)2了解:广义相对论的几个结论是什么?(1)(2)(3)3阅读课本“科学漫步”部分,了解关于宇宙学研究有哪些新进展?【自主检测】1超越狭义相对论的思考:狭义相对论指出电磁相互作用的速度 c 是 的极限。引力的作用以 传递。狭义相对论是 之间的理论。2广义相对性原理和等效原理:(1)广义相对性原理:在任何参考系中, 都是相同的。(2)等效原理:一个均匀的引力场与一个做 的参考系等价。3广义相对论的几个结论:2(1)物质的引力使 弯曲。(2)引力场的存在使得空间不同位置的 出现差别。宇宙中有一类恒星,很小, 却不小,叫做矮星。矮星表面的 很强,按照广义相对论,那里的 比较慢,那里原子发光的 比同种原子在地球上发光的 低,看起来应该偏红,这个现象叫做 。【组内检查】1广义相对性原理和等效原理2广义相对论的几个结论3

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