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【免费下载】精编安徽省定远县第一初级中学20222023学年九年级上学期段考物理试题

  • 2026-02-20 23:56:04
【免费下载】精编安徽省定远县第一初级中学20222023学年九年级上学期段考物理试题

学年度上学期九年级段考试卷

物理试题

第十三章 ---第十四章

一、填空题(本大题共10小题,共20分)

1. 如图所示是同种物质的三种不同状态下的分子结构,其中丙图表物质处于 ___________ 态(选填“固”、“液”或“气”),物质从丙图变化到乙图时时,组成物质的体积变大,分子间作用力 ___________ (选填“变大”、“变小”或“不变”),在这一变化过程中要 ___________ (选填“吸收”或“放出”)热量。

2. 热熔胶是一种在常温下为固态的粘合剂,使用时先用热熔胶枪加热使其熔化,再凝固来粘合物体。用如图所示的一款热熔胶枪给热熔胶加热时,会闻到熔胶的气味,这是_____现象,这一现象说明分子___,热熔胶被胶枪挤出,并“粘”在物体上,说明分子间存在____力。

3. 如图所示,是一个被销钉锁住的活塞,汽缸密封有压缩空气,是一支温度计.若活塞与汽缸壁之间没有摩擦,当把销钉拔出后,将观察到活塞向右移动,温度计的读数_____(填“变大”“变小”或“不变”),原因是______.

4. 丽图家装修时安装了水地暖。水地暖采用水作为供暖介质是利用了水的____________比较大的性质,若每小时有600kg的水流入房间,流出房间的水降低了5°C。则水每小时向房间放出热量____________J。(水的比热容为c=4.2×103J/(kg⋅°C)

5. 小海在探究“物质的吸热能力与哪些因素有关”时,用规格相同的电加热器来加热质量相等的水和某种液体(cc),并用图像对实验数据进行了处理,如图所示。实验中,0﹣4min内水吸收的热量__________某种液体吸收的热量(选填“大于”、“小于”或“等于”)。分析图像可知物质___________是水(选填“甲”或“乙”),另一种液体的比热容为___________J/(kg・℃)。[c=4.2×103J/(kg・℃)]

6. 小汽车上使用的是四冲程汽油机,如图所示,是汽油机的______冲程。该热机的转速为60r/s,则1s内该热机对外做功______次。汽油机工作时温度较高,常用水作为冷却剂,原因是______

7. 利用先进工艺和科学方法,可以使垃圾变废为宝.若从1吨垃圾中能提炼出140kg燃料油,燃料油的热值为4.5×107J/kg,则这些燃料油完全燃烧时释放出的热量为_____J,这些热量可以使_____kg的水温度升高50℃.[水的比热容为4.2×103J/(kg•℃)]

8. 用天然气烧水,水烧开后,壶盖不断向上跳动,此过程中能量转化与四冲程汽油机的_____冲程的能量转化相同;若天然气完全燃烧放出的热量有50%被水吸收,在标准大气压下把5kg的水从20℃加热至沸腾,需完全燃烧_____m3天然气.(c=4.2×103J/(kg•℃),q天然气=4×107J/m3

9. 小球在地面弹跳的频闪照片如图所示。在小球运动的过程中,有一部分____能转化成了____能,从而导致小球的温度会_____(填“升高”或“降低”或“不变”),整个过程中,能量的总量______。(填“增加”或“减少”或“不变”)

10. 2022330日,长征十一号运载火箭以“一箭三星”的方式,托举天平二号ABC卫星点火起飞,随后卫星顺利进入轨道,在点火升空时,伴随大量的“白气”出现,这是大量高温水蒸气_______形成大量的“白气”这种壮观景象。火箭在上升过程中,燃料的化学能转化为_______能,最终转化为火箭的机械能。

二、选择题(本大题共8小题,共16分)

11. 关于热量、内能、温度的关系,下列说法正确的是(  )

A. 物体的温度越高,所含热量越多

B. 物体放出热量,内能一定减小,温度可以不变

C. 物体吸收了热量,它的温度一定升高,内能一定增加

D. 发生热传递时,热量总是从内能大的物体传递给内能小的物体

12. 用两个相同的电加热器分别给质量和初温都相同的甲、乙两种液体同时加热,两液体的温度随时间变化关系图象如图所示,下列说法正确的是(  )

A. 甲液体的比热容大于乙液体的比热容B. 乙液体的比热容大于甲液体的比热容

C. 升高相同温度,甲液体的加热时间比较长D. 加热相同的时间,甲液体升高的温度小于乙液体

13. 如图所示,在烧瓶内盛少量水,用橡胶塞塞住管口,对瓶内打气,当塞子跳起来时,可以看到瓶内出雾,塞子跳起来的过程与选项中汽油机的四个冲程原理相同的是(  )

A. B. 

C. D. 

14. 下图是教材中的四幅插图,对此分析正确的是

A 甲图实验,说明接触面间会发生扩散现象

B. 乙图是同学们爱吃的茶叶蛋,煮茶叶蛋时,水温升高,蛋壳颜色变化加快

C. 丙图实验中,应将装有空气的玻璃瓶放在下面

D. 丁图实验中,住里推活塞时,水分子间只有斥力作用

15. 截止2021年底,中国高铁里程数达3.96万公里,动力足、速度快,是中国展现给全世界的一张金名片。某列高铁在牵引电动机的作用下,以恒定的速度经有坡度的引桥行驶上水平的高架轨道。以下分析正确的是(  )

A. 牵引电动机可将电能完全转化为机械能

B. 在引桥上行驶的过程中列车的动能转化为重力势能

C. 行驶在高架轨道上的高铁只具有重力势能

D. 在水平的高架轨道上行驶时列车的机械能保持不变

16. 2021312日,在海南文昌航天发射场,搭载试验九号卫星的长征七号改遥二运载火箭发射成功,试验九号卫星主要用于空间环境监测等新技术在轨验证试验。在试验九号卫星随火箭加速升空过程中,下列说法正确的是(  )

A. 九号卫星相对于火箭是运动的

B. 九号卫星的动能和势能都增大

C. 运载火箭携带的燃料的热值变小

D. 运载火箭升空过程中机械能守恒

17. 如图所示,是根据“探究不同物质吸热能力”实验数据绘制的ab物质的温度﹣时间图像,实验中两种物质的质量相同,初温度相同,选用的加热器相同,由图像可知(  )

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  1. CONNECT:[ UseTime:0.000396s ] mysql:host=127.0.0.1;port=3306;dbname=no_yeyulingfeng;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000697s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000335s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000305s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000464s ]
  6. SELECT * FROM `set` [ RunTime:0.000177s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000517s ]
  8. SELECT * FROM `article` WHERE `id` = 469358 LIMIT 1 [ RunTime:0.000363s ]
  9. UPDATE `article` SET `lasttime` = 1771641228 WHERE `id` = 469358 [ RunTime:0.005938s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000292s ]
  11. SELECT * FROM `article` WHERE `id` < 469358 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000361s ]
  12. SELECT * FROM `article` WHERE `id` > 469358 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000464s ]
  13. SELECT * FROM `article` WHERE `id` < 469358 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000655s ]
  14. SELECT * FROM `article` WHERE `id` < 469358 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001172s ]
  15. SELECT * FROM `article` WHERE `id` < 469358 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000768s ]
0.079622s