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【免费下载】精编天津市第一中学20222023学年九年级上学期第一阶段成长记录物理试题

  • 2026-02-06 23:53:07
【免费下载】精编天津市第一中学20222023学年九年级上学期第一阶段成长记录物理试题

天津一中九年级

学生第一阶段成长记录

一、单选题

1. 在下图所示的物理学家中,以其名字命名为电流单位的是(

A. 伽利略

B瓦特

C. 安培

D. 牛顿

2. 有一种智能锁,需要通过“密码+人脸”两次识别成功才能开锁。密码识别成功时仅闭合,灯L发光,照亮人脸进行识别,但不开锁,人脸识别成功后才会闭合,电动机M工作,开锁成功。下列电路设计符合要求的是(  )

A. B. C. D. 

3. 利用如图所示的电路探究“并联电路电流的规律”。开关闭合,电流表A1的示数为0.12A,A的示数为0.36A。以下说法中正确的是(  )

A. 通过R1的电流是0.24A

B. 电流表A2的示数为0.24A

C. 通过R2的电流是0.48A

D. 干路的电流为0.48A

4. 下列关于四冲程内燃机说法中正确的是

A. 一个工作循环对外做功一次B. 汽油机在吸气冲程中吸入气缸的是空气

C. 压缩冲程中将内能转化为机械能D. 热机效率越高,所做的有用功就越多

5. 用毛皮摩擦过橡胶棒接触验电器的金属球,验电器的金属箔片张开,如图所示。下列说法正确的是(  )

A. 毛皮的原子核束缚电子的能力比橡胶棒强

B. 摩擦过程中毛皮上的电子转移到橡胶棒上

C. 验电器箔片张开是因为两箔片带了正电荷

D. 金属球上的电荷与两箔片上的电荷电性相反

6. 某同学使用电流表时候,将“+”、“﹣”两个接线柱接错了,这样做的结果是

A. 指针偏转角度变小

B. 指针不动

C. 指针偏转角度变大

D. 指针反向偏转

7. 在干燥的冬季,汽车在长途行驶的过程中车身会带上电荷。为了避免人触摸车门时因放电而带来的不适感,人们通常会在车尾安装一条与大地相接触的静电带,如图所示。下列说法中正确的是(  )

A. 车身会带上电荷说明电荷可以被创造

B. 车身带电荷是摩擦起电现象

C. 若车身带正电荷,则说明车身得到了电子

D. 若车身带负电荷,则电流方向为从车身到大地

8. 如图所示的实验电路,闭合开关S后,电流表A的示数为0.5A,电流表A1的示数为0.3A,则通过小灯泡L1L2的电流分别是(  )

A. 0.3A,0.2AB. 0.2A,0.3AC. 0.5A,0.3AD. 0.5A,0.2A

9. 如图,先后将不同材料接在电路的AB两点间,闭合开关,能使小灯泡发光的是(  )

A. 干木条B. 铅笔芯C. 塑料棒D. 陶瓷棒

10. 秋天天气干燥,用塑料梳子梳头,头发会随着梳子飘起来,而且头发会变得蓬松,下列分析正确的是(  )

A. 梳头后,梳子带电而头发不带电

B. 头发会随着梳子飘起来,是因为头发和梳子带同种电荷

C. 梳子与头发摩擦的过程中,创造了电荷

D. 梳头后变得蓬松,是因为头发带上了同种电荷

二、多选题

11. 关于下列四个中国传统节日中的美食,说法正确的是(  )

A. 端午节——粽子粽香浓郁,说明分子在不停的做无规则运动

B. 元宵节——煮熟的元宵温度高,含有的热量多

C. 中秋节——吃月饼时,轻易掰开月饼说明组成月饼材料分子之间不存在引力

D. 除夕节——煮饺子时,通过热传递的方式改变了饺子的内能

12. 如图所示,在一个配有活塞的厚玻璃筒里放一小团硝化棉,用力迅速压下活塞,观察到硝化棉燃烧起来。活塞与玻璃筒间的摩擦力忽略不计,关于该实验,下列说法中正确的是(  )

A. 下压活塞的过程中,筒内气体被压缩,说明气体分子间存在空隙

B. 下压活塞的过程中,筒内气体的压强逐渐增大

C. 下压活塞过程中,因为活塞对筒内气体做了功,气体的温度升高,所以点燃了硝化棉

D. 下压活塞的过程中,筒内气体内能增加,气体的内能转化为活塞的机械能

13. 如图所示,所有电路元件都能正常工作,下列说法正确的是(  )

A. 只闭合开关S1S2时,电灯L1L2并联,电流表测干路电流

B. 只闭合开关S1S2时,电流表测通过L1的电流

C. 只闭合开关S3时,两灯都亮,电灯L1L2串联

D. 开关S1S2S3都闭合时,灯L1发光,L2短路

三、填空题

14. 如图为航母上简化的蒸汽弹射装置,能带动舰载机在两秒钟内达到起飞速度。气缸内蒸汽体积膨胀,对外做功,内能___________(填“增大”、“减少”或“不变”),推动活塞运动,使舰载机获得巨大的动能。此过程的能量转化方式类似于汽油机的___________冲程。

15. 蓄电池是按可再充电设计的电池,通过可逆的化学反应实现再充电。通常是指铅酸蓄电池,它属于二次电池。它的工作原理:充电时利用外部的______能使内部活性物质再生,储存为______能,比如生活中常用的电动自行车电池等。

通过网盘分享的文件:【免费下载】精编天津市第一中学20222023学年九年级上学期第一阶段成长记录物理试题

链接: https://pan.baidu.com/s/1ejX5nw3kdCPbvEUaYZFVqg?pwd=4321 提取码: 4321 

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  1. CONNECT:[ UseTime:0.000510s ] mysql:host=127.0.0.1;port=3306;dbname=no_yeyulingfeng;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000933s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.100794s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.100714s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000637s ]
  6. SELECT * FROM `set` [ RunTime:0.100564s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001001s ]
  8. SELECT * FROM `article` WHERE `id` = 462918 LIMIT 1 [ RunTime:0.100688s ]
  9. UPDATE `article` SET `lasttime` = 1770495324 WHERE `id` = 462918 [ RunTime:3.233193s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.030479s ]
  11. SELECT * FROM `article` WHERE `id` < 462918 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.046818s ]
  12. SELECT * FROM `article` WHERE `id` > 462918 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.019652s ]
  13. SELECT * FROM `article` WHERE `id` < 462918 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.042969s ]
  14. SELECT * FROM `article` WHERE `id` < 462918 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.058671s ]
  15. SELECT * FROM `article` WHERE `id` < 462918 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.076317s ]
3.989445s