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2010-2011年上学期安徽省舒城二中初三物理期末质量检测


rapid deve lopme nt of the market economy environme nt to expl ore publi c servants ' duty consumpti on monetizati on reform has provided a good foundation. The socialization of rear servi ce work has been la unche d, and rapi d progre ss in some pl aces a nd departme nts, duty cons umption monetiza tion of carrier a nd a ppr oach to manageme nt has bee n resolve d. Thir d, in re cent years , explori ng the monetizati on of duty cons umption ha s made s ome progres s, have gai ned s ome experi ence and ca n provi de reference to the compre he nsive reform of the system of publi c serva nts ' duty consumpt ion further. Impl ementing a n "honest ca nteen", sta ndar dize official e ntertaini ng manageme nt; enhancing t he telecommuni cation expe nse manag ement; elimi nation of County travel and countrysi de s ubsi dies ; research "village official s" capitalizati on ma nagement of corporate spe ndi ng, a nd s o on. Finally, gr oup ... 18 session to be he ld in Beiji ng from Novem ber 9, 20 13 to 12t h. 35 year s ago ble w the thir d ple nary se ssion of the reform and openi ng up in the spri ng breez e, change d, affect the worl d; today, 35 years later, i n the eye s of the nati on a nd t he worl d expe ct, again to reform mark China, us hered in the 18 sessi on. XI G eneral Se cretary pointed out that Chi na's reform has e ntered a crucial peri od a nd t he Sham Shui Po District, must be based on greater political courage and wis dom, l ose no time in deepeni ng reform in importa nt fields. Dares to crack a har d nut, dares t o question the Rapi ds, which dares t o break the barrier of ideas, a nd dare to benefit cure barriers . Dee peni ng reform and openi ng up i s on schedule to a chieve i nstituti onal safeguards of the moderately well-off. Under the "five in one" the General lay out of s ociali st moder nizati on requirement s, 18 se ssi on of the decision was a "five in one" and t he improveme nt of overall s cheme of reform, will promote a n integrated a nd coordinate d economic, politi cal, cultural, s oci al and ecol ogical civilizati on constructi on of the five reforms and t he party's construction in the area of instit utional reform. The "five in one" programme is to a chiev e a com prehe nsive reform of institutional guara ntees for obje ctives of build a well-off societ y, the smoot h progre ss of the construction of a well -off society and reform the obje ctives of the programme. One, holdi ng time and place importa nce on November 9, 201 3 to the 1 8 ses sion of the 1 2th Beijing since 1978, 35, have bee n 7 ple nary se ssi on, ea ch time on major i ssues of political a nd e conomi c life of the country has made important depl oyment. I n accor dance wit h PRC political practi ce, often at every sessi on of the CPC Ce ntral Committee in a ple nary ses sion was held immediately after the party's Congres s, on the theme "pers onnel", dis cussing electi on Central's top leaders, s uch as the electi on of the Standi ng Committee of the politi cal Bureau, through the Central Committee members, deci sions, such as members of the Central Military Commissi on. The second plenary sess ion, is hel d in tw o ses sions before the general electi on, mai nly to di scuss a new State pers onnel is sues . But by the t hird

2010-2011 年上学期安徽省舒城二中初三物理期末质量检测
一、填空题(1 一 10 小题每空 1 分,11 一 13 小题每空 2 分.共 33 分) 1、电磁铁与普通磁铁相比的突出优点是 (写出一个即可) 。电磁铁在生产和生活中的应 用很多,在电炉,电铃,电灯中,用到电磁铁的是 。 2、在四冲程内燃机的工作过程中, 冲程将内能转化成机械能。 3、如图 1 所示,电源由两节干电池串联组成,R1 为 l0Ω ,R2 为 20 Ω 。则闭合开关后,Rl 两端的电压为 V,电流通过 R1 和 R2 所做的电功之比为 。 4、有一只电暖器标有“220V 1000W” ,正常工作时通过电暖器的电 流是 A,通电 l0min,电暖器将 J 的电能转化成了内能。 5 、一台起重机在 10 秒内把一辆重为 15000 牛的汽车举高了 2 米,起重机对汽车做了 焦的功,功率是 瓦。 6、 “超高压水切割”又称“水刀”切割,它是将普通水经过多级增压后,通过一个极细的喷嘴 喷出一道高速“水箭” 。工业上可用来切割大理石、牛皮、钢板等坚硬物体。 “水刀”有纯水切 割和加磨料切割(即在水中加人石英砂、金钢砂) 。高速水流中加人磨料后切割能力大大提高是 因为 。 7、如图 2 所示,将一根条形磁铁插人线圈时,与之相连的灵敏电流计的指针会发生偏转。在这 个闭合 电路中, 相当于电 源,这一现象 中能量的 转化情况 是 。

8、图 3 中,物体 G 的重为 16N,手拉绳的力为 10N。当物体被匀速拉动提高 h 时,动滑轮的 机械效率为 (不考虑摩擦) 。若想增大动滑轮的机械效率,可采用的方法 是 。 (答一种即可) 9、如图 4 所示,放在水平桌面上的一个瓶子,内部装有一定的饮料,当瓶口塞紧倒过来时,液 体对瓶塞的压强比正立时对瓶底的压强大,其原因是 ;倒过来后,瓶子对桌面 的压强将 (填“变大” 、 “变小”或“不变” ) ,其原因是 。 10、微型电扇的内部构造如图 5 所示。在完好的微型电扇的插头处接一只发光二极管,用手旋 转叶片,将发现二极管发光,这说明电路中有电流产生,这种现象叫 现象;微型电 扇接人电路中能转动,其工作原理是 。 11、如图 6 是挖掘机和人在挖土的一个情境,请你提出 一 个与功和能有关的问题并回答。 例:问题:挖掘机做的功一定比人做的功多吗? 答:因为缺少做功时间,所以不能确定。 问题: 答: 12、如图 7 所示,将两块相同的橡皮泥做成实心球形和碗形,分别放人相同的甲、乙两杯水中, 静止时甲杯中橡皮泥所受的浮力 (选填“大于” 、 “小于”或“等于” )乙杯中橡皮泥 所受的浮力, 杯中水面升高得多。
plenary sessi on, each se ssion of the Ce ntral Committee of national institutions a nd pers onnel pr oblem s have bee n arranged, you ca n concentrate on nat i onal devel opme nt and reforms. 。 求 要 准 标 卫 合 符 他 其 状 性 官 感 或 物 异 混 期 过 虫 生 霉 害 毒 有 质 变 败 腐 不 , 常 正 形 味 香 、 色 须 必 成 及 料 原 品 食 的 购 采 Previous ple nary ses sion is often bra nde d with a ce ntral leadi ng colle ctive, often by looking at t he thir d ple num of t he initiative t o found t he current central lea ders hip colle ctive gover nance chara cteristics. From the analysis of the process of economic reform in Chi na, plenary sessi on, 12 s essi on, 14, 1 6 ple nary se ssion hav e programmatic mea ning , respectivel y, marking t he four stages of China's economic reform, and that t he start -up pha se of reform, reform, constructi on pha se and perfecting t he Socialist market e conomy framework stage of s oci alist market economy. Previous ple nary ses sion topics proposed t o the t hird plenary sessi on of "taking cla ss str uggle as t he key l ink," shifted t o socialist m oder nization; 12 session marked the cha nge from rural t o ur ban, e stabli she d with public ow nershi p as t he Foundation of a To form a

planned commodity economy; 13 session at a time whe n both t he ol d and the new sy stem cha nge, gov erna nce a nd re ctify the e conomic order ; 14 . .. Fair and efficient a nd a uthoritative Socia list judicia l system, safeguar d the people's i nterests. Legal authority to uphol d the Constitut ion, deepeni ng the reform of a dministrative law e nforceme nt, ensure t hat the right t o exercise judicial pow er indepe nde nt ly and impartially a ccordi ng to law t he pr ose cution, perfecting t he runni ng mechani sm of judicial pow er, impr ove the sy stem of judicial protecti on of huma n rights. Ple nary s ession, Affairs the right to a dhere to the system, and let the pe ople authority to let the power run in t he Sun, is shut up in a cage of the system power policy. De cisi on S cience, im plementation s hould be constr ucte d strong, s upervi se the r unning of pow erful system, impr ove the sy stem of punis hi ng and preventi ng corruption, prom oting pol itical integrity, and strive to a chieve cadre s ' honest a nd Gover nment integrit y, clea n politics. scientifi c and effective coordination of power re striction and mechani sms to strengt hen a nti-corruption instit utional innovation and instit utional prote ction, s ound impr ovement style normal system. Pl enary se ssi on, buil ding a s oci alist culture in Chi na, e nha nci ng national cultural s oft pow er, must adhere t o the ori entation of advance d Social ist culture, a dhere t o the development of Socialist culture wit h Chine se characteristi cs, a dhere t o the people-centre d work -orie nted, further dee peni ng reform of cult ure. To improve the cult ural manageme nt system, establi sh a nd impr ove the modern market system and buildi ng moder n publi c cultural servi ce system , impr ove the level of cult ure openi ng. Ple nary se ssion, achievi ng devel opment re sults more equitable benefit of all pe opl e, we must spee d up reform of socia l programs a nd s olve the i ssues of concern to t he pe opl e the most direct and real i nterest, and bet ter meet the nee ds of the people. To deepe n educati on reform, improve i nstituti onal me cha nisms for the

rapid deve lopme nt of the market economy environme nt to expl ore publi c servants ' duty consumpti on monetizati on reform has provided a good foundation. The socialization of rear servi ce work has been la unche d, and rapi d progre ss in some pl aces a nd departme nts, duty cons umption monetiza tion of carrier a nd a ppr oach to manageme nt has bee n resolve d. Thir d, in re cent years , explori ng the monetizati on of duty cons umption ha s made s ome progres s, have gai ned s ome experi ence and ca n provi de reference to the compre he nsive reform of the system of publi c serva nts ' duty consumpt ion further. Impl ementing a n "honest ca nteen", sta ndar dize official e ntertaini ng manageme nt; enhancing t he telecommuni cation expe nse manag ement; elimi nation of County travel and countrysi de s ubsi dies ; research "village official s" capitalizati on ma nagement of corporate spe ndi ng, a nd s o on. Finally, gr oup ... 18 session to be he ld in Beiji ng from Novem ber 9, 20 13 to 12t h. 35 year s ago ble w the thir d ple nary se ssion of the reform and openi ng up in the spri ng breez e, change d, affect the worl d; today, 35 years later, i n the eye s of the nati on a nd t he worl d expe ct, again to reform mark China, us hered in the 18 sessi on. XI G eneral Se cretary pointed out that Chi na's reform has e ntered a crucial peri od a nd t he Sham Shui Po District, must be based on greater political courage and wis dom, l ose no time in deepeni ng reform in importa nt fields. Dares to crack a har d nut, dares t o question the Rapi ds, which dares t o break the barrier of ideas, a nd dare to benefit cure barriers . Dee peni ng reform and openi ng up i s on schedule to a chieve i nstituti onal safeguards of the moderately well-off. Under the "five in one" the General lay out of s ociali st moder nizati on requirement s, 18 se ssi on of the decision was a "five in on e" and t he improveme nt of overall s cheme of reform, will promote a n integrated a nd coordinate d economic, politi cal, cultural, s oci al and ecol ogical civilizati on constructi on of the five reforms and t he party's construction in the area of instit utional reform. The "five in one" programme is to a chiev e a com prehe nsive reform of institutional guara ntees for obje ctives of build a well-off societ y, the smoot h progre ss of the construction of a well -off society and reform the obje ctives of the programme. One, holdi ng time and place importa nce on November 9, 201 3 to the 1 8 ses sion of the 1 2th Beijing since 1978, 35, have bee n 7 ple nary se ssi on, ea ch time on major i ssues of political a nd e conomi c life of the country has made important depl oyment. I n accor dance wit h PRC political practi ce, often at every sessi on of the CPC Ce ntral Committee in a ple nary ses sion was held immediately af ter the party's Congres s, on the theme "pers onnel", dis cussing electi on Central's top leaders, s uch as the electi on of the Standi ng Committee of the politi cal Bureau, through the Central Committee members, deci sions, such as members of the Central Military Commissi on. The second plenary sess ion, is hel d in tw o ses sions before the general electi on, mai nly to di scuss a new State pers onnel is sues . But by the t hird

13、如图 8 所示的电路,电源电压保持不变,滑动变阻器 R2 的滑片向右滑动时,电压表的示 数 , 电阻 R1 消耗的功率 , 电路消耗的总功率 。 (填 “变大” 、 “不变”或“变小” ) 二、选择题(每题 3 分,共 30 分) 14、下列说法正确的是: A、根据 P=ρ gh 可以计算大气层的高度 B、把气压计从山脚拿到山顶,示数将减小 C、在同一地点,大气压是不变的 D、液体表面的气体压强减小时,液体的沸点会升高 15、把长 l0cm 左右的饮料吸管 A 插在盛水的杯子中,另一根吸管 B 的管口贴靠 A 管的上端, 如图 9 所示。往 B 管中吹气,可以看到 A 管中的水面高度: A、上升 B、下降 C、不变 D、无法判断 16、灯泡的明亮程度决定于它的( ) A、额定功率 B、电阻 C、电功 D、实际功率 17、下列说法中正确的是: A、电动机是利用电磁感应原理制成的 B、发电机是把电能转化为机械能的机器 C、直流电动机是通过换向器实现持续转动的 D、交流发电机发的电与干电池提供的电不同之处就是前者方向在不断的变化。 18、在学习了功率的知识后,三位同学想比较爬杆时谁的功率大。以下是他们讨论后得出的三 套方案,其中可行的是: ①用相同的时间爬杆,测量出各自的体重和爬上杆的高度,即可比较功率大小; ②都爬到杆顶,测量出各自的体重和爬杆用的时间,即可比较功率大小; ③爬杆后,测量出各自的体重、爬杆用的时间和爬上杆的高度,算出功率进行比较。 A、只有① B、①② C、①③ D、①②③ 19、一个空心球在水中恰能悬浮,如图 10 所示,现沿图中虚线位置将其 分割为两部分,则这两部分将: A、小块上浮,大块下沉 B、小块下沉,大块上浮 C、大、小两块都仍悬浮 D、大、小两块均下沉。 20,铜的比热容是铅的比热容的 3 倍。质量相同的铜块和铅块,若它们升高的温度之比为 1:2, 则它们吸热之比为: A、2:3 B、3:2 C、6:1 D、1:6 21、一个小灯泡接在电压为 U 的电路中,在时间、内消耗的电能为 W;若接在电压为鲁 U 的电
plenary sessi on, each se ssion of the Ce ntral Committee of national institutions a nd pers onnel pr oblem s have bee n arranged, you ca n concentrate on nati onal devel opme nt and reforms. 。 求 要 准 标 卫 合 符 他 其 状 性 官 感 或 物 异 混 期 过 虫 生 霉 害 毒 有 质 变 败 腐 不 , 常 正 形 味 香 、 色 须 必 成 及 料 原 品 食 的 购 采 Previous ple nary ses sion is often bra nde d with a ce ntral leadi ng colle ctive, often by looking at t he thir d ple num of t he initiative t o found t he current central lea ders hip colle ctive gover nance chara cteristics. From the analysis of the process of economic reform in Chi na, plenary sessi on, 12 s essi on, 14, 1 6 ple nary se ssio n hav e programmatic mea ning , respectivel y, marking t he four stages of China's economic reform, and that t he start -up pha se of reform, reform, constructi on pha se and perfecting t he Socialist market e conomy framework stage of s oci alist market economy. Previous ple nary ses sion topics proposed t o the t hird plenary sessi on of "taking cla ss str uggle as t he key l ink," shifted t o socialist m oder nization; 12 session marked the cha nge from rural t o ur ban, e stabli she d with public ow nershi p as t he Foundation of a To form a

planned commodity economy; 13 session at a time whe n both t he ol d and the new sy stem cha nge, gov erna nce a nd re ctify the e conomic order ; 14 . .. Fair and efficient a nd a uthoritative Socia list judicia l system, safeguar d the people's i nterests. Legal authority to uphol d the Constitut ion, deepeni ng the reform of a dministrative law e nforceme nt, ensure t hat the right t o exercise judicial pow er indepe nde ntly and impartially a ccordi ng to law t he pr ose cution, perfecting t he runni ng mechani sm of judicial pow er, impr ove the sy stem of judicial protecti on of huma n rights. Ple nary s ession, Affairs the right to a dhere to the system, and let the pe ople authority to let the power run in t he Sun, is shut up in a cage of the system power policy. De cisi on S cience, im plementation s hould be constr ucte d strong, s upervi se the r unning of pow erful system, impr ove the sy stem of punis hi ng and preventi ng corruption, prom oting political integrity, and strive to a chieve cadre s ' honest a nd Gover nment integrit y, clea n politics. scientifi c and effective coordination of power re striction and mechani sms to strengt hen a nti-corruption instit utional innovation and instit utional prote ction, s ound impr ovement style normal system. Pl enary se ssi on, buil ding a s oci alist culture in Chi na, e nha nci ng national cultural s oft pow er, must adhere t o the ori entation of advance d Social ist culture, a dhere t o the deve lopment of Socialist culture wit h Chine se characteristi cs, a dhere t o the people-centre d work -orie nted, further dee peni ng reform of cult ure. To improve the cult ural manageme nt system, establi sh a nd impr ove the modern market system and buildi ng moder n publi c cultural servi ce system, impr ove the level of cult ure openi ng. Ple nary se ssion, achievi ng devel opment re sults more equitable benefit of all pe opl e, we must spee d up reform of socia l programs a nd s olve the i ssues of concern to t he pe opl e the most direct and real i nterest, and better meet the nee ds of the people. To deepe n educati on reform, improve i nstituti onal me cha nisms for th e

rapid deve lopme nt of the market economy environme nt to expl ore publi c servants ' duty consumpti on m onetizati on reform has provided a good foundation. The socialization of rear servi ce work has been la unche d, and rapi d progre ss in some pl aces a nd departme nts, duty cons umption monetiza tion of carrier a nd a ppr oach to manageme nt has bee n resolve d. Thir d, in re cent years , explori ng the monetizati on of duty cons umption ha s made s ome progres s, have gai ned s ome experi ence and ca n prov i de reference to the compre he nsive reform of the system of publi c serva nts ' duty consumpt ion further. Impl ementing a n "honest ca nteen", sta ndar dize official e ntertaini ng manageme nt; enhancing t he telecommuni cation expe nse manag ement; elimi nation of Count y travel and countrysi de s ubsi dies ; research "village official s" capitalizati on ma nagement of corporate spe ndi ng, a nd s o on. Finally, gr oup ... 18 session to be hel d in Beiji ng from Novem ber 9, 201 3 to 12t h. 35 years ag o blew t he third ple nary ses sion of the reform and openi ng up i n the s pring breeze, cha nged, affect the w orld; toda y, 35 years late r, in t he eyes of the nation and the w orld expe ct, again t o reform mark China , us hered i n the 18 s essi on. XI G eneral Se cretary poi nted out that China' s reform has e ntered a cr ucial period and the S ham Shui Po Distri ct, must be base d on greater pol itical courage a nd wi sdom, los e no tim e i n dee peni ng reform in important fields . Dares to crack a hard nut, dares t o question the Rapi ds, which dares t o break the barrier of ideas, a nd dare to be nefit cure barriers. Deepeni ng reform and ope ning up is on s che dul e to achieve institutional safeguar ds of the m oderately well -off. Under the "five in one" the Ge neral layout of socialist modernizati on re quireme nts, 18 s essi on of the de cisi on was a "fi ve in one" and the improveme nt of overall scheme of reform, will promote a n integrated and coor dinated econom i c, political, cult ural, s ocial a nd ecol ogical civilizati on constructi on of the five reforms and the party's constructi on i n the area of instituti onal reform. The "five in one" programme is to achieve a comprehensive reform of institutional guara ntees f or obje ctives of build a w ell-off societ y, the sm ooth progres s of the construct ion of a well -off society and reform the objective s of the pr ogramme. One, hol ding time a nd pl ace importance on November 9, 2 013 to the 18 se ssi on of the 1 2th Beijing since 1978 , 35, have bee n 7 ple nary se ssion, ea ch time on major is sue s of politi cal and economic life of the country has made import ant depl oyment. I n accor dance with PRC political practice, often at every se ssion of the CPC Central Committee in a ple nary se ssion was held immedi ately after the party's Congres s, on the theme "personnel", dis cus sing el ection Ce ntral's top leader s, such a s the ele ction of the Standing Committee of the political Burea u, thr ough t he Ce ntral Committee members , de cisions, such as mem bers of the Central Military Commissi on. The

second plenary sess ion, is hel d in tw o ses sions before the general electi on, mai nly to di scuss a new State pers onnel is sues . But by the t hird

路中,通电时间为 2t,则小灯泡消耗的电能为(设小灯泡电阻值不变) : A、2W B、1W C、2 W D、4 W 22、如图 11 所示,小孩从不太陡的滑梯上滑下的过程中,臀部 有灼热的感觉,下列说法正确的是: A、动能一定越来越大 B、重力势能一定越来越小 C、机械能总量保持不变 D、以上说法都不对 23、分别用相同的两个滑轮组成三种装置:一个定滑轮;一个动 滑轮;滑轮组。用这三种装置先后将一个重力为 G 的物体提高 h 米(忽略绳重) ,其中机械效率最大的是: A、定滑轮 B、动滑轮 C、滑轮组 D、三种装置都一样 三、作图与实验(共 22 分) 24、 (4 分)图 12 中,电路连接正确,通电后小磁针指向如图 12 所示(涂黑端表示 N 极) 。请 在图中标出螺线管的磁极、电源的“十” 、 “一”极,并画出螺线管的绕法。

25、 (4 分)小华探究电磁铁磁性与线圈匝数的关系,设计了如下实验:他用相同的漆包线在相 同的铁钉上绕制成两个电磁铁,它们的线圈匝数不同,同时用电源分别通电,小华根据图 13 所 示实验现象得出结论:电磁铁的线圈匝数越多,磁性越强. (1)小华设计的实验不妥之处是 。 (2)请你写出实验的改进方法 。 26、 (8 分)在学习了电学知识后,同学们尝试自制电加热器.老师提供了以下器材:电源、两 个 20Ω 的电阻和若干开关、导线,让同学们先设计电路. (1)小虎第一个完成设计,他设计的电路如图 14 所示.他想知道闭合开关 S1 时,通电 5min 电 路中产生的热量,请你帮他解答此题. (2)小华思考一会儿,设计了能提供两种发热功率的电路.她在小虎设计的电路上再加一个开 关,使电路能以两种发热功率工作,其大、小功率之比是 .请你在图 15 中完成小 华的设计.

(3)小明经过认真思考后,用了三个开关,设计了能提供三种发热功率的电路.请你在图 16 的 方框内,画出小明所设计的电路图. 27、 (6 分)图 17 是小明同学研究“物体动能的大小与哪些因素有关”的实验装置,实验 中他先让同一钢球从斜面上不同 的高度由静止滚下,打到同一个 木块上,其目的是研究钢球动能 的大小与 的关系,实验 是通过木块被推动的 大 小, 说明钢球对木块做功的多少,
plenary s essi on, ea ch sessi on of the Ce ntral Committee of nati onal i nstituti ons a nd pers onnel problems have bee n arrange d, you can conce ntrate on national devel opme nt and reforms . 。 求 要 准 标 卫 合 符 他 其 状 性 官 感 或 物 异 混 期 过 虫 生 霉 害 毒 有 质 变 败 腐 不 , 常 正 形 味 香 、 色 须 必 成 及 料 原 品 食 的 购 采 Previous pl enary se ssi on is often brande d with a central leadi ng collective , often by l ooki ng at the third plenum of the i nit iative to found the current ce ntral leader shi p coll ective gover nance characteri stics . From the analysis of the process of economic reform in Chi na, pl enary se ssi on, 1 2 ses sion, 14, 16 ple nary ses sion have pr ogrammatic meaning, respectivel y, marking the four stages of China' s economic reform, a nd that the start-up phase of reform, reform, construction phase a nd perfecting t he Socialist market economy framework stage of s ociali st market economy. Previous ple nary ses sion topi cs propose d to the t hird pl enary se ssi on of "taking cla ss str uggle as the key li nk," shi fted to socia list modernizati on; 12 session marked the chang e from rural to urba n, esta blis hed wit h publ ic owners hip a s the Foundation of a planned commodity economy; 13 session at a time when bot h the ol d and the new system change , governa nce and rectify the economic order; 14 ... Fair and efficient a nd a uthoritative S ociali st judi cial system, s afeguard the pe ople' s interests. Legal aut hority to uphold t he Constit ution, dee pening the reform of admi nistrative law enfor cement, e ns ure that the right t o exercise j udi cial power inde pendently a nd impartially a ccordi ng to law the pros ecution, perfecti ng the runni ng mechani sm of judi cial powe r, improve t he system of judicial protecti on of human right s. Ple nary ses sion, Affairs the right to adhere to t he system, and let the people aut hority to let t he power run in the S un, i s shut up in a cage of the system power policy. De cisi on Science, impleme ntation shoul d be constructed strong, s upervi se the r unning of powerful sys tem, improve the system of punis hing a nd preventi ng corr upti on, promoti ng politi cal integrit y, and striv e to achieve cadres ' honest and Gover nment integrit y, cle an politics. To form a scientific and effective coordinati on of power re striction and mechani sms to strengt hen a nti-corruption instit utional innovation and instit utional prote ction, s ound impr ovement style normal system. Pl enary se ssi on, buil ding a s ociali st cult ure in Chi na, enhancing national cultural s oft powe r, must a dhere t o the ori entation of advance d Socia list culture, a dhere t o the development of Socialist culture wit h Chine se characterist i cs, a dhere t o the people-centre d work -orie nted, further dee peni ng reform of cult ure. To improve the cultural ma nagement system, esta blis h and improve the moder n market system and buil ding modern public cult ural service system, improve t he level of culture ope ning. Plenary sess ion, achieving development res ults more e quita ble be nefit of all pe ople, w e must s peed up r eform of social programs and solve the is sues of concer n to the people the most dire ct and real interest, a nd better meet the nee ds of the pe ople. To deepe n educati on reform, improv e instituti ona l mecha nisms for the

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3

rapid deve lopme nt of the market economy environme nt to expl ore publi c servants ' duty consumpti on monetizati on reform has provided a good foundation. The socialization of rear servi ce work has been la unche d, and rapi d progre ss in some pl aces a nd departme nts, duty cons umption monetiza tion of carrier a nd a ppr oach to manageme nt has bee n resolve d. Thir d, in re cent years , explori ng the monetizati on of duty cons umption ha s made s ome progres s, have gai ned s ome experi ence and ca n provi de reference to the compre he nsive reform of the system of publi c serva nts ' duty consumpt ion further. Impl ementing a n "honest ca nteen", sta ndar dize official e ntertaini ng manageme nt; enhancing t he telecommuni cation expe nse manag ement; elimi nation of County travel and countrysi de s ubsi dies ; research "village official s" capitalizati on ma nagement of corporate spe ndi ng, a nd s o on. Finally, gr oup ... 18 session to be he ld in Beiji ng from Novem ber 9, 20 13 to 12t h. 35 year s ago ble w the thir d ple nary se ssion of the reform and openi ng up in the spri ng breez e, change d, affect the worl d; today, 35 years later, i n the eye s of the nati on a nd t he worl d expe ct, again to reform mark China, us hered in the 18 sessi on. XI G eneral Se cretary pointed out that Chi na's reform has e ntered a crucial peri od a nd t he Sham Shui Po District, must be based on greater political courage and wis dom, l ose no time in deepeni ng reform in importa nt fields. Dares to crack a har d nut, dares t o question the Rapi ds, which dares t o break the barrier of ideas, a nd dare to benefit cure barriers . Dee peni ng reform and openi ng up i s on schedule to a chieve i nstituti onal safeguards of the moderately well-off. Under the "five in one" the General lay out of s ociali st moder nizati on requirement s, 18 se ssi on of the decision was a "five in on e" and t he improveme nt of overall s cheme of reform, will promote a n integrated a nd coordinate d economic, politi cal, cultural, s oci al and ecol ogical civilizati on constructi on of the five reforms and t he party's construction in the area of instit utional reform. The "five in one" programme is to a chiev e a com prehe nsive reform of institutional guara ntees for obje ctives of build a well-off societ y, the smoot h progre ss of the construction of a well -off society and reform the obje ctives of the programme. One, holdi ng time and place importa nce on November 9, 201 3 to the 1 8 ses sion of the 1 2th Beijing since 1978, 35, have bee n 7 ple nary se ssi on, ea ch time on major i ssues of political a nd e conomi c life of the country has made important depl oyment. I n accor dance wit h PRC political practi ce, often at every sessi on of the CPC Ce ntral Committee in a ple nary ses sion was held immediately af ter the party's Congres s, on the theme "pers onnel", dis cussing electi on Central's top leaders, s uch as the electi on of the Standi ng Committee of the politi cal Bureau, through the Central Committee members, deci sions, such as members of the Central Military Commissi on. The second plenary sess ion, is hel d in tw o ses sions before the general electi on, mai nly to di scuss a new State pers onnel is sues . But by the t hird

从而判断钢球动能的大小。由图可知 。 四、计算题(共 15 分) 28、 (5 分)用如图 18 所示的机械拉着重 500N 的物体在水平地面上匀速运动,物体受到的 摩擦力为 120N,绳子末端的水平拉力为 50N,则滑轮组的机械效率是多少?若物体运动的速度 为 0.2m/s,则 l0s 内拉力做了多少焦的功?

29、(4 分)淮南市用上天然气后,两位同学设计了一个测定天然气热值的实验:取 500g 水放人锅中,用温度计测得水的初始温度为 20℃,读出燃气表的示数为 12.560m3。然后用天然 气给水加热, 当温度计的示数为 80℃时, 燃气表的示数为 12. 563m3。 〔C 水=4.2×103J/ (kg· ℃) , 3 1 m 某种气体燃料完全燃烧时所放出的热量叫该种气体燃料的热值〕 (1)求实验过程中水吸收的热量 Q; (2)他们用水吸收的热量 Q 和燃气表的示数差 V (即所用天然气的体积) , 根据 q= 出了天然气的热值。请回答这个实验方案是否可行?并说明理由。

Q 计算 V

30、(5 分)用电器 R1 和 R2 上都标有“6V”的字样,已知它们的电流随电压变化的图像如 图 19 所示,请你利用图像求: (1)用电器 R1 的额定功率。 (2)若把 R1 和 R2 串联在电源电压为 6V 的电路中工作,则用电器 R2 的实际功率是多少?

plenary sessi on, each se ssion of the Ce ntral Committee of national institutions a nd pers onnel pr oblem s have bee n arranged, you ca n concentrate on nati onal devel opme nt and reforms. 。 求 要 准 标 卫 合 符 他 其 状 性 官 感 或 物 异 混 期 过 虫 生 霉 害 毒 有 质 变 败 腐 不 , 常 正 形 味 香 、 色 须 必 成 及 料 原 品 食 的 购 采

Previous ple nary ses sion is often bra nde d with a ce ntral leadi ng colle ctive, often by looking at t he thir d ple num of t he initiative t o found t he current central lea ders hip colle ctive gover nance chara cteristics.

From the analysis of the process of economic reform in Chi na, plenary sessi on, 12 s essi on, 14, 1 6 ple nary se ssio n hav e programmatic mea ning , respectivel y, marking t he four stages of China's economic reform, and that t he start -up pha se of reform, reform, constructi on pha se and perfecting t he Socialist market e conomy framework stage of s oci alist market economy.

Previous ple nary ses sion topics proposed t o the t hird plenary sessi on of "taking cla ss str uggle as t he key l ink," shifted t o socialist m oder nization;

12 session marked the cha nge from rural t o ur ban, e stabli she d with public ow nershi p as t he Foundation of a To form a

planned commodity economy; 13 session at a time whe n both t he ol d and the new sy stem cha nge, gov erna nce a nd re ctify the e conomic order ; 14 . .. Fair and efficient a nd a uthoritative Socia list judicia l system, safeguar d the people's i nterests. Legal authority to uphol d the Constitut ion, deepeni ng the reform of a dministrative law e nforceme nt, ensure t hat the right t o exercise judicial pow er indepe nde ntly and impartially a ccordi ng to law t he pr ose cution, perfecting t he runni ng mechani sm of judicial pow er, impr ove the sy stem of judicial protecti on of huma n rights. Ple nary s ession, Affairs the right to a dhere to the system, and let the pe ople authority to let the power run in t he Sun, is shut up in a cage of the system power policy. De cisi on S cience, im plementation s hould be constr ucte d strong, s upervi se the r unning of pow erful system, impr ove the sy stem of punis hi ng and preventi ng corruption, prom oting political integrity, and strive to a chieve cadre s ' honest a nd Gover nment integrit y, clea n politics. scientifi c and effective coordination of power re striction and mechani sms to strengt hen a nti-corruption instit utional innovation and instit utional prote ction, s ound impr ovement style normal system. Pl enary se ssi on, buil ding a s oci alist culture in Chi na, e nha nci ng national cultural s oft pow er, must adhere t o the ori entation of advance d Social ist culture, a dhere t o the deve lopment of Socialist culture wit h Chine se characteristi cs, a dhere t o the people-centre d work -orie nted, further dee peni ng reform of cult ure. To improve the cult ural manageme nt system, establi sh a nd impr ove the modern market system and buildi ng moder n publi c cultural servi ce system, impr ove the level of cult ure openi ng. Ple nary se ssion, achievi ng devel opment re sults more equitable benefit of all pe opl e, we must spee d up reform of socia l programs a nd s olve the i ssues of concern to t he pe opl e the most direct and real i nterest, and better meet the nee ds of the people. To deepe n educati on reform, improve i nstituti onal me cha nisms for th e

rapid deve lopme nt of the market economy environme nt to expl ore publi c servants ' duty consumpti on m onetizati on reform has provided a good foundation. The socialization of rear servi ce work has been la unche d, and rapi d progre ss in some pl aces a nd departme nts, duty cons umption monetiza tion of carrier a nd a ppr oach to manageme nt has bee n resolve d. Thir d, in re cent years , explori ng the monetizati on of duty cons umption ha s made s ome progres s, have gai ned s ome experi ence and ca n prov i de reference to the compre he nsive reform of the system of publi c serva nts ' duty consumpt ion further. Impl ementing a n "honest ca nteen", sta ndar dize official e ntertaini ng manageme nt; enhancing t he telecommuni cation expe nse manag ement; elimi nation of Count y travel and countrysi de s ubsi dies ; research "village official s" capitalizati on ma nagement of corporate spe ndi ng, a nd s o on. Finally, gr oup ... 18 session to be hel d in Beiji ng from Novem ber 9, 201 3 to 12t h. 35 years ag o blew t he third ple nary ses sion of the reform and openi ng up i n the s pring breeze, cha nged, affect the w orld; toda y, 35 years late r, in t he eyes of the nation and the w orld expe ct, again t o reform mark China , us hered i n the 18 s essi on. XI G eneral Se cretary poi nted out that China' s reform has e ntered a cr ucial period and the S ham Shui Po Distri ct, must be base d on greater pol itical courage a nd wi sdom, los e no tim e i n dee peni ng reform in important fields . Dares to crack a hard nut, dares t o question the Rapi ds, which dares t o break the barrier of ideas, a nd dare to be nefit cure barriers. Deepeni ng reform and ope ning up is on s che dul e to achieve institutional safeguar ds of the m oderately well -off. Under the "five in one" the Ge neral layout of socialist modernizati on re quireme nts, 18 s essi on of the de cisi on was a "fi ve in one" and the improveme nt of overall scheme of reform, will promote a n integrated and coor dinated econom i c, political, cult ural, s ocial a nd ecol ogical civilizati on constructi on of the five reforms and the party's constructi on i n the area of instituti onal reform. The "five in one" programme is to achieve a comprehensive reform of institutional guara ntees f or obje ctives of build a w ell-off societ y, the sm ooth progres s of the construct ion of a well -off society and reform the objective s of the pr ogramme. One, hol ding time a nd pl ace importance on November 9, 2 013 to the 18 se ssi on of the 1 2th Beijing since 1978 , 35, have bee n 7 ple nary se ssion, ea ch time on major is sue s of politi cal and economic life of the country has made import ant depl oyment. I n accor dance with PRC political practice, often at every se ssion of the CPC Central Committee in a ple nary se ssion was held immedi ately after the party's Congres s, on the theme "personnel", dis cus sing el ection Ce ntral's top leader s, such a s the ele ction of the Standing Committee of the political Burea u, thr ough t he Ce ntral Committee members , de cisions, such as mem bers of the Central Military Commissi on. The

second plenary sess ion, is hel d in tw o ses sions before the general electi on, mai nly to di scuss a new State pers onnel is sues . But by the t hird

参考答案 一、填空题(1 一 10 小题每空 1 分,11 一 13 小题每空 2 分,共 33 分) 1、磁性有无可以控制(或强弱可以控制、磁场方向可以控制等)电铃 3、1V,1:2 4、4.5,6×10
5

2、做功

5、3×10 ,3×10

4

3

6、加人磨料后,水流质量增大,速度不变,动能增加。 7、磁铁和线圈,机械能转化为电能 8、80%,减小动滑轮重(或减小摩擦、绳重等) 9、液体密度不变,深度增大,压强增大(或液体压强 与深度成正比等) ;增大;压力不变,受力面积变小,压强增大 10、电磁感应,通电导体在磁场中受力转动 二、选择题(每题 3 分,共 30 分) 题号 答案 三、作图与实验(共 22 分) 24、略 26、 (1)Q= 25、前后两次线圈中的电流不同,将两个电磁铁串联或通过滑动变阻器调节使电流相等 14 B 15 A 16 D 17 C 18 D 19 B 20 B 21 C 22 B 23 A 11、略 12、小于,乙 13、变大,变小,变小

?12V ? ? 5 ? 60s=1080J U2 t= R总 20? ? 20?
2

(2 分)

(2)2:1,图略(将一电阻局部短路) (3 分) (3)如图 1 (3 分) 27、速度,距离,质量相同时,物体的速度越大动能越大(每空 2 分) 四、计算题(共 15 分) 28、 ?=

W有用 W总

? 100 %=

fs? fs? 120N ? 100 %= ? 100 %= ? 100 %= 80 % (2 分) Fs F 3s? 50N ? 3

物体移动速度是 0.2m/s,l0s 内移动距离 S’=0. 2m/s×10s=2m 拉力移动距离 S = 3S'=3×2m= 6m,拉力做的功 W = FS= 50N×6m= 300J(3 分) 29、 (1)Q=cm△t=4.2×103J /(kg·℃)×0.5kg×(80℃-20℃)=1.26×l05J (2 分) (2)不可行,因为天然气不可能完全燃烧,而且燃烧放出的热量不可能全部被水吸收(2 分) 30、 (1)P1 额=6×0.15=0.9W (2)由图可知 Rl=

6V = 40Ω , R2 0.15 A



6V =20Ω (2 分) 0 .3 A
(2 分)

I= I=

U 6V = =0.1A R1 ? R2 40? ? 40?

P2 实=I2R2=(0. 1A)2 ×20Ω =0.2W

(2 分)

plenary s essi on, ea ch sessi on of the Ce ntral Committee of nati onal i nstituti ons a nd pers onnel problems have bee n arrange d, you can conce ntrate on national devel opme nt and reforms . 。 求 要 准 标 卫 合 符 他 其 状 性 官 感 或 物 异 混 期 过 虫 生 霉 害 毒 有 质 变 败 腐 不 , 常 正 形 味 香 、 色 须 必 成 及 料 原 品 食 的 购 采

Previous pl enary se ssi on is often brande d with a central leadi ng collective , often by l ooki ng at the third plenum of the i nit iative to found the current ce ntral leader shi p coll ective gover nance characteri stics .

From the analysis of the process of economic reform in Chi na, pl enary se ssi on, 1 2 ses sion, 14, 16 ple nary ses sion have pr ogrammatic meaning, respectivel y, marking the four stages of China' s economic reform, a nd that the start-up phase of reform, reform, construction phase a nd perfecting t he Socialist market economy framework stage of s ociali st market economy.

Previous ple nary ses sion topi cs propose d to the t hird pl enary se ssi on of "taking cla ss str uggle as the key li nk," shi fted to socia list modernizati on;

12 session marked the chang e from rural to urba n, esta blis hed wit h

publ ic owners hip a s the Foundation of a planned commodity economy; 13 session at a time when bot h the ol d and the new system change , governa nce and rectify the economic order; 14 ... Fair and efficient a nd a uthoritative S ociali st judi cial system, s afeguard the pe ople' s interests. Legal aut hority to uphold t he Constit ution, dee pening the reform of admi nistrative law enfor cement, e ns ure that the right t o exercise j udi cial power inde pendently a nd impartially a ccordi ng to law the pros ecution, perfecti ng the runni ng mechani sm of judi cial powe r, improve t he system of judicial protecti on of human right s. Ple nary ses sion, Affairs the right to adhere to t he system, and let the people aut hority to let t he power run in the S un, i s shut up in a cage of the system power policy. De cisi on Science, impleme ntation shoul d be constructed strong, s upervi se the r unning of powerful sys tem, improve the system of punis hing a nd preventi ng corr upti on, promoti ng politi cal integrit y, and striv e to achieve cadres ' honest and Gover nment integrit y, cle an politics. To form a scientific and effective coordinati on of power re striction and mechani sms to strengt hen a nti-corruption instit utional innovation and instit utional prote ction, s ound impr ovement style normal system. Pl enary se ssi on, buil ding a s ociali st cult ure in Chi na, enhancing national cultural s oft powe r, must a dhere t o the ori entation of advance d Socia list culture, a dhere t o the development of Socialist culture wit h Chine se characterist i cs, a dhere t o the people-centre d work -orie nted, further dee peni ng reform of cult ure. To improve the cultural ma nagement system, esta blis h and improve the moder n market system and buil ding modern public cult ural service system, improve t he level of culture ope ning. Plenary sess ion, achieving development res ults more e quita ble be nefit of all pe ople, w e must s peed up r eform of social programs and solve the is sues of concer n to the people the most dire ct and real interest, a nd

better meet the nee ds of the pe ople.

To deepe n educati on reform, improv e instituti ona l mecha nisms for the

用心 爱心 专心

123 号编辑

5



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