Pushing ahead, East, North, West development, facilitating shanty, complete xincheng West Road, stability and reconstruction of the street, Star Ding garden built century Garden District, subject public housing construction, heating the gas expansion accelerated implementation, Jing Rui River and bridge style line solid shaft, further expanded the town development. Beautiful country adhere to the advance and typical for a group to lead. According to \ogical lay based, and industry increased income, and live upgrade civilization, and culture rich connotation\ht, caught built beautiful village, and whole village advance, and easily relocation, and \d three built\oject near 30 a; depth into ecological, and industry, and culture, and tourism, elements, high standards caught party original city Liu, and jade are Xia AO, model village, in province City set has benchmark. Four is equal benefits to promote sharing, coordinated development of various social undertakings. In the case of rigid spending slowing revenue growth, increase, financial 75% to the people's livelihood, the masses have more access in the sharing. Cuoban something good and benefit. Adhere to the affordable, best, carefully cuoban village oil, water and heat, cultural, city and County columns practical, developments benefit families, bring more welfare to the masses. Development of social convenience. Acceptance of balanced development of compulsory education through the national assessment, the County vocational education center was named \of vocational education in China\hird batch of national reform and development model through provincial ... Five is to deepen reform and innovation to break bottlenecks and endogenous development of effective fire. As an engine of dynamism, adding reform key to adopting reform measures stress energy and break bottlenecks and promoting development. Pay close attention to the key areas of reform. Conscientiously implement the provincial deployment and cancel, adjustment, to undertake the administrative approval items according to Regulation 347 to further improve administrative efficiency continuing deepening reform for poverty alleviation, speeding up rural land right registration certification pilot project, encouraging the orderly transfer of land management, utilize the land resources, in order to promote scale management laid the Foundation. Actively cultivate the market. Firmly establish a market-oriented, nurturing family farms, industrial users, professional cooperation organization new market management main body 456, effectively improve the industry, intensive and marketization of encouraging support social capital into the small micro-credit, urban development, culture and tourism, public services and other areas, easing development shortfall. To promote mass innovation. To support the rural sector to use new thinking and new ideas, creative work incentives such as actively promoting financial intermediation, bring added 159 in non public enterprises, individually-1540, created a2013-2014学年度第一学期期期末教学质量监测
九年级物理试卷
题 号 得 分 得分评卷人 分分 一 (32分) 二 (30分) 三 (20分) 四 (18分) 总 分(100分)
一、 填空题（每空2分，共32分）
1．俗话说“酒香不怕巷子深”，从物理角度说这属于__________现象；“冷水泡茶
慢慢浓”说明分子运动快慢与__________有关。
2．在解决物理问题的过程中,我们常常会用到一些隐含的已知条件。
示例: ⑴在1标准大气压下，把水烧开。 隐含条件:开水的温度为100℃；
(2)将用电器接到家庭电路中。 隐含条件:家庭电路的电压为___________； (3)给遥控器换上两节新的七号干电池。 隐含条件:电源电压为___________。
3．嫦娥三号探测器需要火箭送入太空，火箭发动机用氢作燃料是因为氢的_________很大。4．科学家发明了一款单缸六冲程内燃机，它每一个工作循环的前四个冲程与单缸四冲程内燃机相同，在第四冲程结束后，立刻向气缸内喷水，水在高温汽缸内迅速汽化成高温、高压的水蒸气，推动活塞再次做功，水蒸气温度 （选填“升高”、“降低”或“不变”），其内能 （选填“增大”、“减小”或“不变”），这样燃烧同样多的燃料获得了更多的机械能，提高了热机的效率。为进入下一个工作循环，这款内燃机的第六冲程应是 ______ 冲程。
5．台式电脑使用一段时间后，为保证电脑的稳定性，需要打开主机箱盖除尘，这是因为散热风扇的扇叶在转动过程中与空气摩擦带上了 ，可以 轻小物体，所以灰尘会附着在扇叶上。
6．如图，电源电压保持不变，电阻R1 = R2 = R3 = 10Ω。要使R2、R3并联，应闭合开关 ，此时电流表的示数为I1；要使R1、R2串联，开关S1、S2应 (填“断开”或“闭合”)，此时电流表的示数为I2；则I1︰I2 = 。 7．现有甲“6V 3W”、乙“6V 4W”、丙“8V 3W”和丁“8V 4W”四个灯泡，要取其中的两个串联起来接入电路，且同时正常发光，应选_______________两个灯泡，此时电路两端的电压是_______V，通电1h消耗的电能是________ J。 得分评卷人
第6题图
二、选择题（每小题3分，共30分） 分分 8．用分子的观点对下列观象的解释不正确的是【 】 ．．．
A.氧气被压缩装入钢瓶----分子间有间隔
B. 破碎的玻璃无法复原----分子间存在斥力 C.闻到路边怡人的花香----分子不停地运动
D. 两块表面平滑的铅块紧压后会结合起来----分子间存在引力 9. 下列说法正确的是【 】
A． 对物体做功，物体的内能一定增加 B． 物体温度升高了，一定吸收了热量 C． 物体散发热量，温度一定降低 D． 物体温度升高，内能一定增加 10．关于家用小汽车的说法正确的是【 】
A．汽车在行驶过程中，动能保持不变 B．汽车发动机用循环水冷却是因为水的热量多 C．小汽车的发动机一般用汽油机 D．高档小轿车，汽油机效率可达100%
Pushing ahead, East, North, West development, facilitating shanty, complete xincheng West Road, stability and reconstruction of the street, Star Ding garden built century Garden District, subject public housing construction, heating the gas expansion accelerated implementation, Jing Rui River and bridge style line solid shaft, further expanded the town development. Beautiful country adhere to the advance and typical for a group to lead. According to \ogical lay based, and industry increased income, and live upgrade civilization, and culture rich connotation\ht, caught built beautiful village, and whole village advance, and easily relocation, and \d three built\oject near 30 a; depth into ecological, and industry, and culture, and tourism, elements, high standards caught party original city Liu, and jade are Xia AO, model village, in province City set has benchmark. Four is equal benefits to promote sharing, coordinated development of various social undertakings. In the case of rigid spending slowing revenue growth, increase, financial 75% to the people's livelihood, the masses have more access in the sharing. Cuoban something good and benefit. Adhere to the affordable, best, carefully cuoban village oil, water and heat, cultural, city and County columns practical, developments benefit families, bring more welfare to the masses. Development of social convenience. Acceptance of balanced development of compulsory education through the national assessment, the County vocational education center was named \of vocational education in China\hird batch of national reform and development model through provincial ... Five is to deepen reform and innovation to break bottlenecks and endogenous development of effective fire. As an engine of dynamism, adding reform key to adopting reform measures stress energy and break bottlenecks and promoting development. Pay close attention to the key areas of reform. Conscientiously implement the provincial deployment and cancel, adjustment, to undertake the administrative approval items according to Regulation 347 to further improve administrative efficiency continuing deepening reform for poverty alleviation, speeding up rural land right registration certification pilot project, encouraging the orderly transfer of land management, utilize the land resources, in order to promote scale management laid the Foundation. Actively cultivate the market. Firmly establish a market-oriented, nurturing family farms, industrial users, professional cooperation organization new market management main body 456, effectively improve the industry, intensive and marketization of encouraging support social capital into the small micro-credit, urban development, culture and tourism, public services and other areas, easing development shortfall. To promote mass innovation. To support the rural sector to use new thinking and new ideas, creative work incentives such as actively promoting financial intermediation, bring added 159 in non public enterprises, individually-1540, created a11．小明对新型LED灯带很好奇，取一段剖开后发现，灯带中的LED灯是串联后通过电源适配器接入照明电路的．他取下其中一只LED灯接在3V电池两端，灯不亮，对调电池正负极后亮了，用手试摸，点亮的灯几乎不发热．以下推断符合上述实验事实的是【 】 A．单只LED灯工作电压是220V
B．LED灯具有单向导电特性
C．灯带中一只LED灯断路后其他灯还亮 D．LED灯主要是将电能转化为内能
12．小丽家的电风扇具有摇头功能。风扇不转时，不能单独使用摇头功能；风扇转动时，可根据
第12题图
A B C D
需要选择使用摇头功能．下列电路符合要求的是【 】
13．馨怡同学用电能表测量某家用电器的电功率，当只有该用电器工作时，测得15min内标有 “6000imp/kWh”的电子式电能表指示灯闪烁了1800次，这用电器可能是【 】
A．电饭锅 B．白炽灯 C．电视机 D．电冰箱
14．如图所示，电源电压不变，当滑动变阻器的滑片从左向右滑动过程中，电流表和电压表示数变化情况应是【 】
A．电压表、电流表示数都变大 B．电压表示数变大,电流表示数变小 C．电压表示数变小，电流表示数变大 D．电压表、电流表示数都变小 15．如图所示，开关S闭合后，将电压表并联在ab处时读数是0V；并联在bc处时读数是6V，整个电路中没有电流，其电路故障是【 】
A．L1灯丝断路 B．L2灯丝断路 C．电池耗尽无电压 D．L2灯丝短路 16. 如果加在某定值电阻两端的电压从6V升高到10V，通过该电阻的电流变化了0.1A，则该电阻的电功率变化了【 】
A．1.6W B．4.0W C．0.4W D．3.4W
17．左图是新型节能应急台灯电路示意图，台灯充好电后，使用时可通过调节滑动变阻器接入电路的阻值R改变灯泡的亮度，假定电源电压、灯泡电阻不变，则灯泡两端电压U随R变化的图象是【 】
第14题图
第15题图
第17题图
得分评卷人 分分 三、作图与实验题（第18题4分，其它每空2分，共20分）
18．根据如图所示的实物连线图，在右边虚线框中画出对应的电路图。（要求
连线要横平竖直，尽量使电路图简洁美观）
Pushing ahead, East, North, West development, facilitating shanty, complete xincheng West Road, stability and reconstruction of the street, Star Ding garden built century Garden District, subject public housing construction, heating the gas expansion accelerated implementation, Jing Rui River and bridge style line solid shaft, further expanded the town development. Beautiful country adhere to the advance and typical for a group to lead. According to \ogical lay based, and industry increased income, and live upgrade civilization, and culture rich connotation\ht, caught built beautiful village, and whole village advance, and easily relocation, and \d three built\oject near 30 a; depth into ecological, and industry, and culture, and tourism, elements, high standards caught party original city Liu, and jade are Xia AO, model village, in province City set has benchmark. Four is equal benefits to promote sharing, coordinated development of various social undertakings. In the case of rigid spending slowing revenue growth, increase, financial 75% to the people's livelihood, the masses have more access in the sharing. Cuoban something good and benefit. Adhere to the affordable, best, carefully cuoban village oil, water and heat, cultural, city and County columns practical, developments benefit families, bring more welfare to the masses. Development of social convenience. Acceptance of balanced development of compulsory education through the national assessment, the County vocational education center was named \of vocational education in China\hird batch of national reform and development model through provincial ... Five is to deepen reform and innovation to break bottlenecks and endogenous development of effective fire. As an engine of dynamism, adding reform key to adopting reform measures stress energy and break bottlenecks and promoting development. Pay close attention to the key areas of reform. Conscientiously implement the provincial deployment and cancel, djustment, to undertake the administrative approval items according to Regulation 347 to further improve administrative efficiency continuing deepening reform for poverty alleviation, speeding up rural land right registration certification pilot project, encouraging the orderly transfer of land management, utilize the land resources, in order to promote scale management laid the Foundation. Actively cultivate the market. Firmly establish a market-oriented, nurturing family farms, industrial users, professional cooperation organization new market management main body 456, effectively improve the industry, intensive and marketization of encouraging support social capital into the small micro-credit, urban development, culture and tourism, public services and other areas, easing development shortfall. To promote mass innovation. To support the rural sector to use new thinking and new ideas, creative work incentives such as actively promoting financial intermediation, bring added 159 in non public enterprises, individually-1540, created a
19．瑞瑞同学在中考物理实验加试时,对串联电路电压规律进行了探究。
V 【猜想与假设】串联电路总电压等于各用电器两端的电压之和； 【设计与进行实验】
1 2 ⑴按右图所示的电路图连接电路；
⑵闭合开关，用电压表测出L1两端的电压；
⑶在测L2两端的电压时,瑞瑞同学为了节省实验时间,采用以下方法:电压
第19题图
表所接的B接点不动,只断开A接点,并改接到C接点上； ⑷测出AC间的电压.
UAB/V UBC /V UAC /V 【交流与评估】
2.4 1.4 3.8 （1）拆接电路时,开关必须 。
（2）瑞瑞同学用上面的方法能否测出L2两端的电压?为什么?
。 （3）方法改进后，测出AB、BC、AC间的电压记录在上面表格中.分析瑞瑞同学的实验数据可以得出的结论是: 。 （4）这个实验在设计方案上还存在的不足之处是：
。 20．用图甲所示装置“比较不同液体吸热升温特点”。在两个相同烧杯中分别加入初温、质量相同的水和食盐水，用相同酒精灯加热直到沸腾。 （1）分别测量出水和食盐水的沸点，发现食盐水的沸点比水高。其中水沸腾时温度计的局部放大图如乙图所示，水的沸点为______℃。 （2）实验中加热食盐水到沸腾需要的时间长，说明食盐水吸收的热量比水 ______（选填“多”或“少”）。
（3）能否由“加热食盐水到沸腾需要的时间长”得出食盐水比热容大的结论？
第18题图
第20题图
答：________；其原因是：________________________________________________。
九年级物理第3页(共4页)
Pushing ahead, East, North, West development, facilitating shanty, complete xincheng West Road, stability and reconstruction of the street, Star Ding garden built century Garden District, subject public housing construction, heating the gas expansion accelerated implementation, Jing Rui River and bridge style line solid shaft, further expanded the town development. Beautiful country adhere to the advance and typical for a group to lead. According to \ogical lay based, and industry increased income, and live upgrade civilization, and culture rich connotation\ht, caught built beautiful village, and whole village advance, and easily relocation, and \d three built\oject near 30 a; depth into ecological, and industry, and culture, and tourism, elements, high standards caught party original city Liu, and jade are Xia AO, model village, in province City set has benchmark. Four is equal benefits to promote sharing, coordinated development of various social undertakings. In the case of rigid spending slowing revenue growth, increase, financial 75% to the people's livelihood, the masses have more access in the sharing. Cuoban something good and benefit. Adhere to the affordable, best, carefully cuoban village oil, water and heat, cultural, city and County columns practical, developments benefit families, bring more welfare to the masses. Development of social convenience. Acceptance of balanced development of compulsory education through the national assessment, the County vocational education center was named \of vocational education in China\hird batch of national reform and development model through provincial ... Five is to deepen reform and innovation to break bottlenecks and endogenous development of effective fire. As an engine of dynamism, adding reform key to adopting reform measures stress energy and break bottlenecks and promoting development. Pay close attention to the key areas of reform. Conscientiously implement the provincial deployment and cancel, adjustment, to undertake the administrative approval items according to Regulation 347 to further improve administrative efficiency continuing deepening reform for poverty alleviation, speeding up rural land right registration certification pilot project, encouraging the orderly transfer of land management, utilize the land resources, in order to promote scale management laid the Foundation. Actively cultivate the market. Firmly establish a market-oriented, nurturing family farms, industrial users, professional cooperation organization new market management main body 456, effectively improve the industry, intensive and marketization of encouraging support social capital into the small micro-credit, urban development, culture and tourism, public services and other areas, easing development shortfall. To promote mass innovation. To support the rural sector to use new thinking and new ideas, creative work incentives such as actively promoting financial intermediation, bring added 159 in non public enterprises, individually-1540, created a得分评卷人 分分 四、计算题（每题9分，共18分，计算要求写出解题过程） 21．如图所示的电路：电源电压不变，滑动变阻器的最大阻值为20Ω。闭合开关，当滑动变阻器的滑片P滑到a端时，小灯泡完全熄灭，电流表的示数为0.3 A；当滑动变阻器的滑片P滑到b端时，小灯泡恰好正常发光，电流表示数为0.8 A。求： L （1）电源电压；
（2）灯泡正常发光1min消耗的电能；
a P （3）灯泡正常发光时，电路的总功率。 b R1 S A 第21题图 题
22．逸凡家使用的是天然气热水器，该热水器的铭牌标明了它的热效率，表示该热水器工作时，天然气完全燃烧所消耗的化学能，有多大比例转化为水的内能。逸凡尝试估测该热水器的热效率，以核对铭牌上的数值是否准确。她把家里自动洗衣机的“水量”设置为40L，用热水器输出的热水注入到洗衣机，当注入水的体积达到40L时洗衣机会自动停止注水。已知当时自来水的温度是
33
15℃，热水器输出热水的温度为35℃，注水前天然气表的示数是2365.89m，注水后变为2366.05m,
3
天然气的热值为3.2×10J/m。求该热水器的热效率。
Pushing ahead, East, North, West development, facilitating shanty, complete xincheng West Road, stability and reconstruction of the street, Star Ding garden built century Garden District, subject public housing construction, heating the gas expansion accelerated implementation, Jing Rui River and bridge style line solid shaft, further expanded the town development. Beautiful country adhere to the advance and typical for a group to lead. According to \ogical lay based, and industry increased income, and live upgrade civilization, and culture rich connotation\ht, caught built beautiful village, and whole village advance, and easily relocation, and \d three built\oject near 30 a; depth into ecological, and industry, and culture, and tourism, elements, high standards caught party original city Liu, and jade are Xia AO, model village, in province City set has benchmark. Four is equal benefits to promote sharing, coordinated development of various social undertakings. In the case of rigid spending slowing revenue growth, increase, financial 75% to the people's livelihood, the masses have more access in the sharing. Cuoban something good and benefit. Adhere to the affordable, best, carefully cuoban village oil, water and heat, cultural, city and County columns practical, developments benefit families, bring more welfare to the masses. Development of social convenience. Acceptance of balanced development of compulsory education through the national assessment, the County vocational education center was named \of vocational education in China\hird batch of national reform and development model through provincial ... Five is to deepen reform and innovation to break bottlenecks and endogenous development of effective fire. As an engine of dynamism, adding reform key to adopting reform measures stress energy and break bottlenecks and promoting development. Pay close attention to the key areas of reform. Conscientiously implement the provincial deployment and cancel, djustment, to undertake the administrative approval items according to Regulation 347 to further improve administrative efficiency continuing deepening reform for poverty alleviation, speeding up rural land right registration certification pilot project, encouraging the orderly transfer of land management, utilize the land resources, in order to promote scale management laid the Foundation. Actively cultivate the market. Firmly establish a market-oriented, nurturing family farms, industrial users, professional cooperation organization new market management main body 456, effectively improve the industry, intensive and marketization of encouraging support social capital into the small micro-credit, urban development, culture and tourism, public services and other areas, easing development shortfall. To promote mass innovation. To support the rural sector to use new thinking and new ideas, creative work incentives such as actively promoting financial intermediation, bring added 159 in non public enterprises, individually-1540, created a2013-2014学年度第一学期期期末教学质量监测
九年级物理试卷参考答案及评分标准
一、填空题（每空2分，共32分）
1．扩散 温度 2．220V 3V 3．热值 4. 降低 减小 排气
4
5．电荷（或静电、电）、吸引 6．S1和S2 断开 4:1 7．甲和丁 14 2.52×10 二、选择题（每小题3分，共30分）
题号 选项
8 B 9 D 10 C 11 B 12 C 13 A 14 D 15 B 16 A 17 C 三、作图与实验题（第18题4分，其它每空2分，共20分）
18.图略
19．（1）断开； （2）不能，电压表正负接线柱接反了； （3）串联电路两端的电压等于各串联部分两端的电压之和； （4）只做一组实验就得出结论具有偶然性。（答案合理即可） 20.（1）98 （2）多
（3）不能; 没有控制两种液体升高的温度相同
四、计算题（每题9分，共18分，计算要求写出解题过程）
21．（1）电源电压U=I1R1=0.3A×20Ω=6V -------- 3分
（2）灯泡正常发光时通过的电流IL=I’-I1=0.8A-0.3A=0.5A -------- 3分
灯泡正常发光1min消耗的电能WL=UILt=6V×0.5A×60S =180J -------- 3分 （3）灯泡正常发光时，电路的总功率P总=UI’=6V×0.8A =4.8W
22.天然气释放的能量Q=qv=3.2×107J/m3×（2366.05m3-2365.89m3）=5.12×106J；----- 3分 水吸收的热量Q吸=cm△t=cρv水△t=4.2×103J/（kg?℃）×1.0×103kg/m3×40×10-3m3×（35℃-15℃）=3.36×106J；-------- 3分
该热水器的热效率η= (Q吸/Q)×100%=(3.36×106J/5.12×106J)×100%=65.625% -------- 3分
九年级物理第5页(共4页)