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2025河北省初中学业水平考试物理真题分析(11一13题)

  • 2026-10-29 19:14:43
2025河北省初中学业水平考试物理真题分析(11一13题)

11.2025年5月14日,我国太空计算星座021任务12颗卫星成功发射,开启了全球“太空计算时代”的新篇章。卫星均搭载星间通信系统,它们之间是利用        传递信息的。在太空运行时,卫星

(选填“具有”或“不具有”)惯性。
    考点是电磁波、惯性
广播、电视、移动通信、卫星都是用电磁波传递信息的。
一切物体都有惯性,与物体所处状态和运动状态无关。   故答案是电磁波、具有
    课标中对该考点的要求是:2.4.6 知道电磁波。了解电磁波的应用及其对人类生活和社会发展的影响。
2.2.5 能运用物体的惯性解释自然界和生活中的有关现象。



12.如图所示,小明在站台上的安全线外候车,是为了防止列车进站时,列车附近的空气流速大,压强     而带来的危险。列车出站后,在列车座位上的小明相对于列车车窗是       的。

    考点是流体压强、相对运动。

流体的压强与流速有关:流速大的地方压强小,流速小的地方压强大;

研究物体是否运动,就看它与参照物的相对位置是否变化,如果有变化,物体相对参照物是运动的,如果没变化,则是静止的。       故答案是小、静止

    课标中对该考点的要求是:2.2.8 了解流体压强与流速的关系及其在生产生活中的应用。

2.1.1 知道机械运动,举例说明机械运动的相对性。

13.(2分)“更喜岷山千里雪,三军过后尽开颜。”诗句抒发了红军将士成功翻越雪山后的豪迈之情。岷山海拔高,山顶处的大气压比山脚下的大气压     。当年红军将士过雪山时搓手取暖,这是通过

的方式改变手的内能。

    考点是大气压强、改变内能的方式

大气压随高度的升高而减小;改变物体内能有两种方式,一是做功,二是热传递,做功是内能和机械能之间的转化,而热传递是内能的转移;         故答案是小、做功

第二空不能写成摩擦,搓手等具体操作,而要写具有概括,总结意义的普适结论:做功。

    课标中对该考点的要求是:2.2.8 知道大气压强及其与人类生活的关系。

3.3.1 了解内能和热量。

基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000534s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000751s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000444s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000319s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000559s ]
  6. SELECT * FROM `set` [ RunTime:0.000292s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000645s ]
  8. SELECT * FROM `article` WHERE `id` = 468020 LIMIT 1 [ RunTime:0.000352s ]
  9. UPDATE `article` SET `lasttime` = 1793444560 WHERE `id` = 468020 [ RunTime:0.001058s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000309s ]
  11. SELECT * FROM `article` WHERE `id` < 468020 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000384s ]
  12. SELECT * FROM `article` WHERE `id` > 468020 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000339s ]
  13. SELECT * FROM `article` WHERE `id` < 468020 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000612s ]
  14. SELECT * FROM `article` WHERE `id` < 468020 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000581s ]
  15. SELECT * FROM `article` WHERE `id` < 468020 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000552s ]
0.104170s