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备课拾遗:初中物理精品课件素材汇总

  • 2026-09-22 23:23:02
备课拾遗:初中物理精品课件素材汇总
测量长度的特殊方法
运动和静止的相对性
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声音的产生、音调课件素材
声音的三要素课件配图
声控喷泉：声的利用课件素材
控制噪声的方法课件配图
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制作棉花糖
用于熔化和凝固现象举例
萤火虫，用于课件中光源举例
此图可用于课件中小孔成像配图
《光现象》习题课件用素材
影子是光的直线传播形成的；
倒影是光的反射形成的。
光的折射课件用素材
生活中的透镜课件素材
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凸透镜的焦距与厚度的关系
判断哪个是物理学中的力
《力》课件素材
重力课件素材
牛顿第一定律课件素材
红色小车质量最小，惯性最小，运动状态更容易改变
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摩擦力课件素材
视频可用于演示摩擦力的方向、木块在传送带上随皮带一起做匀速直线运动时，不受摩擦力作用。
流体压强与流速的关系课件素材
此图可用于运动和静止的相对性以及推力做功情境的课件素材
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安全用电课件素材
发现触电事故时应第一时间切断电源
推荐阅读：如何下载公众号里的视频
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《立在地球边上放号》教学要点和课件

基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2026-09-23 03:37:15 HTTP/1.1 GET : http://a.sjds.net/a/527907.html
  2. 运行时间 : 0.076535s [ 吞吐率：13.07req/s ] 内存消耗：4,403.49kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=489970bfbb8b71fa1697b1c602899372
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  1. CONNECT:[ UseTime:0.000611s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000829s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000439s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000371s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000519s ]
  6. SELECT * FROM `set` [ RunTime:0.000272s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000590s ]
  8. SELECT * FROM `article` WHERE `id` = 527907 LIMIT 1 [ RunTime:0.000364s ]
  9. UPDATE `article` SET `lasttime` = 1790105835 WHERE `id` = 527907 [ RunTime:0.001260s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000325s ]
  11. SELECT * FROM `article` WHERE `id` < 527907 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000426s ]
  12. SELECT * FROM `article` WHERE `id` > 527907 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000397s ]
  13. SELECT * FROM `article` WHERE `id` < 527907 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000468s ]
  14. SELECT * FROM `article` WHERE `id` < 527907 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000626s ]
  15. SELECT * FROM `article` WHERE `id` < 527907 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000680s ]
0.088592s