2018年高考物理试卷(江苏)(解析卷)
2018年江苏省高考物理试卷解析版参考答案与试题解析一、单项选择题:本题共5小题,每小题3分,共计15分.每小题只有一个选项符合题意.1.(3分)我国高分系列卫星的高分辨对地观察能力不断提高。今年5月9日发射的“高分五号”轨道高度约为705km,之前已运行的“高分四号”轨道高度约为36000km,它们都绕地球做圆周运动。与“高分四号”相比,下列物理量中“高分五号”较小的是()A.周期B.角速度C.线速度D.向心加速度【考点】4F:万有引力定律及其应用;4H:人造卫星.菁优网版权所有【专题】34:比较思想;4E:模型法;52A:人造卫星问题.【分析】卫星绕地球匀速做圆周运动,由地球的万有引力提供...
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