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)