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一轮复习 第4章 实验五 探究平抛运动规律

  • 2026-10-18 15:55:16
一轮复习 第4章 实验五 探究平抛运动规律
考点一：教材原型实验
    1.实验原理
    2.实验研究方法
    3.实验关键步骤：
        （1）检查水平：将小球放在斜槽末端，如果能保持静止，即水平。                    【证明需要用到大学的力矩平衡/用杠杆平衡也可以】
        （2）确定坐标原点：小球球心在斜槽末端的投影
 4.数据处理：[很重要]
        （1）O是原点
        （2）O不是原点
    5.实验误差：
        （1）2023年北京卷实验，记录的坐标系与真实坐标系有夹角
   考点二：拓展创新实验
        （1）利用位移传感器
        （2）利用水柱
        （3）挡板竖直放置
pdf下载链接：https://pan.baidu.com/s/1pIT2NtcH0rfuH08g0EzZvQ?pwd=jvtf
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2026年注册验船师资格考试(A级)《船舶检验专业基础(安全)》全真试卷(含答案解析)·考前冲刺必刷题

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  1. CONNECT:[ UseTime:0.000560s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001135s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000423s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000351s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000652s ]
  6. SELECT * FROM `set` [ RunTime:0.000354s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000858s ]
  8. SELECT * FROM `article` WHERE `id` = 524106 LIMIT 1 [ RunTime:0.000416s ]
  9. UPDATE `article` SET `lasttime` = 1792315871 WHERE `id` = 524106 [ RunTime:0.001412s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000360s ]
  11. SELECT * FROM `article` WHERE `id` < 524106 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000748s ]
  12. SELECT * FROM `article` WHERE `id` > 524106 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000442s ]
  13. SELECT * FROM `article` WHERE `id` < 524106 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001086s ]
  14. SELECT * FROM `article` WHERE `id` < 524106 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000646s ]
  15. SELECT * FROM `article` WHERE `id` < 524106 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000807s ]
0.085268s