1、的金属导电板电阻大小和哪些因素有关，他们选取了由同一金属材料制成但底面积和质量不同的导电板，利用如图17所示电路测出其阻值，所得实验数据如下表所示。表一表二序号底面积S（分米2）质量m（毫克）电阻R（欧）序号底面积S（分米2）质量m（毫克）电阻R（欧）111044120222204536023440464802表三序号底面积S（分米2）质量m（毫克）电阻R（欧）71401841601962401（1） 从序号 （9） 的数据可知，正方形金属导电板的电阻大小与 （10） 有关。（2） 分析表一、表二、表三的数据可得出的初步结论是： （11） 。26 某兴趣小组在进行测定小灯泡额定功率实验时，可用
2、的实验器材有：标有“0.2安”字样的小灯泡、3节新干电池、标有“10欧1安”和“5欧1安”的滑动变阻器、电压表、电流表、电键和导线若干，所有器材均完好。他们第一次选择了3节新干电池和标有“5欧 1安”的变阻器及其它相关器材进行实验，实验电路连接正确、步骤规范，但在实验过程中发现无法完成实验。接着，他们更换了部分器材，使用2节新干电池和标有“10欧 1安”的变阻器重新进行了第二次实验，但在实验过程中发现依旧无法完成实验。然后他们经商量，对器材又做了一定的调整，最后顺利地完成了实验。（1） 请画出正确的实验电路图。 （12） （2） 请分析他们第一次实验时无法完成实验的原因是： （13） 。（3）
3、 该小灯泡的额定功率应介于 （14） 瓦至 （15） 瓦之间。闵行区2017学年第二学期九年级质量调研考试理化试卷答案及评分标准物 理 部 分题号答案及评分标准一、选择题（共16分）1.A 2.B 3.B 4.D 5.D 6.C 7.C 8.B二、填空题（共23分）9. （1）托里拆利； （2）磁场。10.（3）相互的； （4）运动状态； （5）不变； （6）减小。11.（7）220； （8）1； （9）10。12.（10）静止； （11）10； （12）1:1。13.（13）19.6； （14）等于； （15）大于。14.（16）电压表示数为4.5伏，灯短路或电阻断路； （2分） 电压表示数
4、为0伏，灯断路。 （2分）15.（17）5.5104； （18）舱外； （19）B。 （2分）三、作图题（共8分）16. 力的大小、方向、作用点各1分。 3分17. 对称2分、虚像1分。 3分18. 连线正确。 2分四、计算题（共25分）19.（3分）Q吸=cmt=2.5103焦（千克）1千克20 =5104焦1分1分1分20.（5分）（1）F2G=60牛F1F2l2/l1=60牛0.6米/0.9米=40牛（2） 乙同学的观点正确； 当动力与竖直方向的夹角大于60度（或与水平方向的夹角小于30度）时，动力臂小于阻力臂，属于费力杠杆。（合理即可）1分2分1分1分21.（8分）（1） V酒m酒/酒
5、2千克/800千克/米32.510-3米3（2） p地=F /S=G甲总/S甲=（m酒+m容）g/ S甲 =（3千克9.8牛/千克）/210-2米21470帕 （3） P1=6P2（m酒+m容）g/S乙=6酒V乙g/S甲（m酒+m容）=3酒V乙3千克=3800千克/米310-2米2h乙 h乙=0.125米2分2分2分1分1分四、计算题（共25分）22.（9分）(1) 只闭合电键S1，只有R1接入电路。U=U1 =I1R1=1安6欧=6伏(2) 同时闭合电键S1和S2，R1、R1并联，I1不变。I2=U2/R2=6伏20欧=0.3安 I= I1+ I2=1.3安(3) 电流表A1测干路，A2测R
6、2支路，所以A1示数大于A2。又因为=35，A1表选03安，A2表选00.6安。I=30.1n安，I2=50.02n安，I: I2=3:1I= I1+ I2，3 I2=1安+ I2，I2=0.5安R2= U2/ I2=6伏0.5安=12欧 2分2分1分1分1分1分1分说明：在计算中，有关单位错写、漏写，总扣 1 分。五、实验题（共18分）23. （1）温度计； （2）25； （3）U形管压强计；（4）大。24. （5）放大； （6）左； （7）S； （8）正。25. （9）1、4、7或3、6、8（2、4或3、7）（10）质量m（底面积S）要求与（9）对应（11）由同一材料制成的正方形金属导电板
7、，m与S的比值相同，电阻R相同；m与S的比值越小，电阻R越大。（由同一材料制成的正方形金属导电板，m相同时，R与S成正比；由同一材料制成的正方形金属导电板，S相同时，R与m成反比）（其它答案合理即可）26. （12）略；（13）滑动变阻器的最大阻值过小，以至于电路中的电流最小值大于0.2安。（14）0.6； （15）0.7。 4分4分1分1分2分2分2分1分1分.浙江省 2015 年选拔优秀高职高专毕业生进入本科学习统一考试英 语题号一二三四总分得分核分人请考生按规定用笔将所有试题的答案涂、写在答题纸上。选择题部分注意事项：1. 答题前,考生务必将自己的姓名、准考证号用黑色字迹的签字笔或钢 笔
8、填写在答题纸规定的位置上。2. 每小题选出答案后,用 2B 铅笔把答题纸上对应题目的答案标号涂黑。 如需改动,用橡皮擦干净后,再选涂其他答案标号。不能答在试题卷上。Part I Reading Comprehension (60 marks, 60 minutes)SectionAFormat（共 20 小题，每小题 2 分，共 40 分）Directions: There are 4 passages in this part. Each passage is followed by five questions. For each of them there are four choice
9、s marked A, B, C, and D. You should decide on the best choice and blacken the corresponding letter on Answer Sheet.Passage oneQuestions 1 to 5 are based on the following passage:Karen Christiansen Madison,Wisconsin,is licking stamps and addressing envelopes.Soon,she and her future husband will be se
10、nding out invitations for their June wedding.Meanwhile,on the other side of the world,Wei Yashung is at the hairdressers in Shanghai,China.She knows she will have a long wait-maybe four hours.Its May 18th,the most popular day to get married in China.The room is filled with brides preparing for their
11、 special day.Weddings are a special event in every culture.People begin new lives together and families are joined together. “Everyone feels very emotional at this time.There are a lot of rituals and superstitions at weddings,”says Maxine Rowe,an anthropologist.As Kerry plans her wedding,her aunt an
12、d sisters help her check off the things she needs,according to an old custom.They read the traditional poem, “Something old,something new,something borrowed,and something blue”Female friends and relatives gather around.preparing the bride for the ceremony.Many wedding traditions in western cultures
13、were designed to protect the couple from bad luck. “The wedding veil is a Greek custom,to hide the bride from evil1.spirits,”says Maxine. “The Romans developed the custom of bridesmaids(i.e. women dressed like the bride) to confuse the spirits.Also,some wedding flowers have a strong smell to scare a
14、way the evil spirits.”In China,thousands of couples that have chosen May 18th for their wedding day. “In the past,Chinese couples consulted a special book to find lucky and unlucky days for getting married ” explains Maxine. “But in modern times,a new tradition is being formed.” The eighteenth day o
15、f the fifth month,five-one-eight or “ wu yao ba ” as it is called in China,sounds very close to “ wo yao fa ” or “I will get rich.” This is considered a omen for any couples getting married on this day.Some people dont think it is a good idea for everyone to get married on the same day. “Its silly a
16、nd superstitious,” a newspaper reporter wrote.Hairdressers,and owners of flower stores,restaurants and car services say its the best day of the year.They can raise their prices for this one day and their services will still be fully booked.Maybe they are the ones who should be saying, “I will get ri
17、ch.”1.The overall structure of this passage can be called _A. comparison and contrastB. description of events in order of timeC. details leading to conclusionD. generalization followed by details2. An anthropologist in P2 studies _ ?A. hairstyleB. jewelsC. almanacsD. customs3. Why do Karens friends
18、and relatives contribute a cousins wedding veil ?A. It is something old.C. It is something borrowed.B. It is something new. D. It is something blue.4. The word omen in P5 means_.A. a sign of starB. a sign of presentC. a sign of pastD. a sign of future5. What is the writers tone in the last sentence
19、“Maybe they are the ones who should be saying, “I will get rich.”A. HumorousB. TolerantC. Matter-of-factD. FuriousPassage TwoQuestions 6 to 10 are based on the following passage:The easiest and least complicated way to motivate somebody is quite simply to pay them attention.What you say is not parti
20、cularly important,nor necessarily is how long you spend saying it,as long as its something. “Nice weather” or “How are you ?” will do.People just love attention,adults and children.Children love attention so much that they will do anything to get some.In fact,if children are not getting enough atten
21、tion,they would rather be naughty and get told off than be “good” and be ignored.An interesting time in most households with young children is2dinnertime-its the end of the day,everybody is tired,the house is in a mess and Johnny doesnt like carrots and is refusing to eat his food.Again,the easy tra
22、p to fall into is to start getting cross with Johnny and getting into a big argument about his food.Again,hes getting the attention he desires;even if its not the best sort of attention,its better than nothing.Its fascinating if you are able to stand back from the situation and instead focus attenti
23、on and praise on Johnnys brother who is eating his food-after all,he is one that is doing what you want him to do.After five or ten minutes or so of being ignored and deprive of the attention,its amazing how quickly(usually) Johnny sees sense and obeys.Ive watched my own children in this situation g
24、o from screaming from behind the sofa,saying “Mummy,arent I doing good dinner eating ? ”-all without having one word a spoken to them by their parents,who are busily paying attention to their brothers.This fundamental need for attention,and doing whatever it takes to get it,doesnt disappear when we
25、turn into adults.Sure,there are people who are “ real attention seekers ” in a loud and extravert ( 外向的) way,and there are the shy,retiring types who dont want attention in such a “ sociable ” way.But everybody still wants to be recognized and seen worthwhile.6.What will children probably do to get
26、parents attention ? A.They will get quiet for a long time.B.They will ignore their parents. C.They will behave naughtily. D. They will get crossly easily.7.What does the phrase “ the easy trap to fall into ” means ?A. A set-up situation parents are likely to go into.B. The household work that parent
27、s can not avoid.C. Some tempting food children easily love to eat.D. A bad habit children easily develop.8. An effective way to make children behave themselves may to be ?A. Scold them severelyB. Teach them what to doC. Give them total freedomD. Praise their sisters or brothers9. “ Real attention se
28、ekers ” in the last paragraph are probably those _ ?A. motivate others to learnB. associate with shy typesC. reply on negative attentionD. arouse others attention openly10.What point does the author make by relating to childrens behavior ? A.Childrens upbringing needs parents constant care.B.Children are usually extravert while adults are sociable. C.Both children and a
个人主页
