当前位置：首页>初中资源包>【优质资源】初中物理21个实验操作示范视频(1)

【优质资源】初中物理21个实验操作示范视频(1)

  • 2026-01-27 20:01:19
【优质资源】初中物理21个实验操作示范视频(1)

01 用托盘天平测量物体的质量

02 测量固体和液体的密度

03 用常见的温度计测量温度

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04 用刻度尺测量长度，用表测量时间

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05 测量物体运动的速度

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06 用弹簧测力计测量力

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07 用电流表测电流

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08 用电压表测电压

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09 用电流表和电压表测量电阻

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10 探究水在沸腾前后温度变化的特点

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【资源速递】小学四年级上学期综合实践活动设计《20.新年策划:“冰雪嘉年华”班级活动方案》

资源汇总||高中化学拓展公众号开通1640天资源汇总(2021.07.03-2025.12.28)

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  1. CONNECT:[ UseTime:0.000911s ] mysql:host=127.0.0.1;port=3306;dbname=c_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001382s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.003750s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.003302s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001384s ]
  6. SELECT * FROM `set` [ RunTime:0.004783s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001551s ]
  8. SELECT * FROM `article` WHERE `id` = 457983 LIMIT 1 [ RunTime:0.003045s ]
  9. UPDATE `article` SET `lasttime` = 1770915196 WHERE `id` = 457983 [ RunTime:0.006196s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.001190s ]
  11. SELECT * FROM `article` WHERE `id` < 457983 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.003490s ]
  12. SELECT * FROM `article` WHERE `id` > 457983 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.004177s ]
  13. SELECT * FROM `article` WHERE `id` < 457983 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.006144s ]
  14. SELECT * FROM `article` WHERE `id` < 457983 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.004064s ]
  15. SELECT * FROM `article` WHERE `id` < 457983 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003860s ]
0.139074s