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2026天津市和平区九年级物理一模试卷含答案

  • 2026-04-17 17:57:14
2026天津市和平区九年级物理一模试卷含答案


一、单项选择题(1~10)

1. 命题点:声音的特性;音调的影响因素;管乐器发声原理

2. 命题点:长度单位换算;常见物体长度的估测

3. 命题点:物态变化的判断;升华、液化、凝华、熔化的生活实例辨析

4. 命题点:基本测量仪器的读数;电压表、天平、温度计、刻度尺的读数规则

5. 命题点:流体压强与流速的关系;伯努利原理的生活应用与现象辨析

6. 命题点:杠杆的五要素;杠杆示意图的绘制;力臂的判断

7. 命题点:机械能及其转化;动能、重力势能的影响因素;滚摆的能量转化

8. 命题点:热机的冲程;四冲程汽油机的能量转化;压缩冲程的做功特点

9. 命题点:密度的特性;质量-体积关系图像;密度的物理意义

10. 命题点:串联电路的故障分析;用电压表检测电路断路、短路故障

二、多项选择题(11~13)

11. 命题点:电与磁综合;验电器原理、地磁场、电磁继电器、水果电池的原理辨析

12. 命题点:浮力与液体压强综合;阿基米德原理、受力分析、液体压强计算、容器底面积推导

13. 命题点:动态电路分析;欧姆定律、电功率计算;电路变化对电表示数的影响;电功率变化量的推导

三、填空题(14~19)

14. 命题点:功和功率的计算;做功的两个必要因素;功的公式、功率公式的应用

15. 命题点:电磁波的应用;电能的计算;电功公式W=Pt的应用

16. 命题点:平均速度的计算;变速运动的平均速度求解;路程与时间的分析

17. 命题点:家庭电路的连接;火线、零线的判断;单刀双掷开关的应用与电路设计

18. 命题点:电动机与发电机的原理;通电导体在磁场中受力、电磁感应现象;能量转化的区分

19. 命题点:惯性的概念;二力合成;匀速直线运动的受力分析;合力的计算

四、综合题(20~25)

20. 命题点:热量计算;电功计算;电热水器热效率的计算;比热容公式、电功公式的综合应用

21. 命题点:滑轮组的机械效率;滑轮组绕线方法;有用功、总功、机械效率的计算

22. 命题点:并联电路的电流规律;实验操作规范;实物电路连接;电流表读数;并联电路电流特点的归纳

23. 命题点:欧姆定律的应用;动态电路分析;开关通断、滑片移动对电路的影响;电功的计算

24. 命题点:浮力的应用;阿基米德原理、物体的浮沉条件;液体密度的实验设计与推导

25. 命题点:液体压强公式的推导;浮力与压力的综合分析;受力分析、阿基米德原理的应用;警戒水位的计算

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  1. CONNECT:[ UseTime:0.000992s ] mysql:host=127.0.0.1;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001337s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000584s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000565s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001032s ]
  6. SELECT * FROM `set` [ RunTime:0.000483s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001310s ]
  8. SELECT * FROM `article` WHERE `id` = 478210 LIMIT 1 [ RunTime:0.002878s ]
  9. UPDATE `article` SET `lasttime` = 1776451516 WHERE `id` = 478210 [ RunTime:0.002162s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000590s ]
  11. SELECT * FROM `article` WHERE `id` < 478210 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000833s ]
  12. SELECT * FROM `article` WHERE `id` > 478210 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000878s ]
  13. SELECT * FROM `article` WHERE `id` < 478210 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.005598s ]
  14. SELECT * FROM `article` WHERE `id` < 478210 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001134s ]
  15. SELECT * FROM `article` WHERE `id` < 478210 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.014358s ]
0.170625s