高二期中考试模块3-2
3-2 泡露点计算及图形绘制

图 苯、甲苯T-xy图
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利用闪蒸模块进行V-L相平衡计算
(1) 泡露点的计算
(2) 冷热曲线的绘制
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例题3-1 通过闪蒸模块求泡露点
【例题】利用闪蒸单元操作,完成以下例题
• 物系:苯,甲苯,其中苯的摩尔分率为0.2,
P=101.325kPa下,(Peng-Rob)求:
1)溶液的泡点温度及平衡气相组成
例题3-1 通过闪蒸模块求泡露点
• 5)定义单元操作
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例题3-1 通过闪蒸模块求泡露点
• 6)运行模拟计算,查看结果
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Flash 题3-6
在压力为106.7kPa下,由摩尔组成为0.3的苯
(C6H6,benzene)、 0.3的甲苯(C7H8,toluene )和0.4的对二甲苯(C8H10,p-xylene) 所组成 的混合物,存在气液两相区的温度范围为 ( ) K到( )K。并计算温度为390K时成平衡 状态的气相和液相的质量组成。采用热力学模 型PENG-ROB方程,
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2)溶液的露点温度及平衡液相组成
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例题3-1 通过闪蒸模块求泡露点
• 1)添加组分
• 2)选择热力学模型(Peng-Rob)
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例题 3-1 通过闪蒸模块求泡露点
• 3)绘制模拟流程图(Separators/Flash2)
第 8页
例题3-1 通过闪蒸模块求泡露点
• 4)定义进料流股
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Flash 题3-7
• 流量为 1000 mol/hr、压力为 0.11 MPa、含70 mol%乙醇和30mol%水的饱和蒸汽在蒸汽冷凝 器中部分冷凝,冷凝物流的汽/液比(摩尔)为 1/3。则离开冷凝器的汽相流股的流量为多少 kg/h,温度为 K ,需要的热(冷)量 为 kW。并给出液相的摩尔组成。( 热力学模型NRTL)
2021年高二上学期期中模块考试英语试题3 含答案

2021年高二上学期期中模块考试英语试题3 含答案考试时间 120分钟满分 120分第Ⅰ卷(选择题,共80分)第一部分听力(共两节,满分20分)第一节(共5小题;每小题1分,满分5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试题卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. When does the doctor's office close?A. At 6:00.B. At 5:00.C. At 4:45.2. Why did the man refuse the job?A. He dislikes having business trips.B. The working hours are terrible.C. The office is far from his home.3. Where does the conversation probably take place?A. In a shop.B. In a hotel.C. In a restaurant.4. What are the two speakers mainly talking about?A. Customer service.B. Their business.C. The news.5. How did the two speakers go to New York last month?A. By train.B. By plane.C. By car.第二节(共15小题;每小题1分,满分15分)请听下面几段对话或独白。
每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷相应位置。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。
鲁科版高中物理选修3-2第二学期高二)期中复习卷.docx

高中物理学习材料桑水制作2010-2011学年第二学期高二物理选修3-2)期中复习卷一.选择题(共12小题,每小题4分,共48分。
在每小题中只有一选项正确。
)1、磁感应强度、磁通量、感应电动势存在一定的联系,若有磁场通过一线圈。
以下说法正确的是:A、若磁通量减少,则磁感应强度一定减少;B、若磁感应强度为零,则磁通量一定是零;C、若磁感应强度减少,则磁通量一定减少;D、若磁通量为零,感应电动势一定是零。
2、下列关于电磁感应的说法中正确的是:A.只要闭合导体与磁场发生相对运动,闭合导体内就一定产生感应电流B.只要导体在磁场中作用相对运动,导体两端就一定会产生电势差C.感应电动势的大小跟穿过回路的磁通量变化成正比D.闭合回路中感应电动势的大小只与磁通量的变化情况有关而与回路的导体材料无关3.如图1所示,AB为固定的通电直导线,闭合导线框P与AB在同一平面内。
当P远离AB做匀速运动时,它受到AB的作用力为()A.零 B.引力,且逐步变小C.引力,且大小不变 D.斥力,且逐步变小4.如图2所示,从匀强磁场中把不发生形变的矩形线圈匀速拉出磁场区,如果两次拉出的速度之比为1∶2,则两次线圈所受外力大小之比F1∶F2、线圈发热之比Q1∶Q2、通过线圈截面的电量q1∶q2之比分别为()A.F1∶F2=2∶1,Q1∶Q2=2∶1,q1∶q2=2∶1B.F1∶F2=1∶2,Q1∶Q2=1∶2,q1∶q2=1∶1C.F1∶F2=1∶2,Q1∶Q2=1∶2,q1∶q2=1∶2D.F1∶F2=1∶1,Q1∶Q2=1∶1,q1∶q2=1∶15.如图3所示,电阻R和线圈自感系数L的值都较大,电感线圈的图1 图2φ φ φφ 电阻不计,A 、B 是两只完全相同的灯泡,当开关S 闭合时,电路可 能出现的情况是A . A 、B 一起亮,然后B 熄灭 B .A 比B 先亮,然后A 熄灭C .A 、B 一起亮,然后A 熄灭D .B 比A 先亮,然后B 熄灭6、交流发电机正常工作时,电动势的变化规律为t e m ωεsin =.如果把发电机转子的转速减小一半,并且把电枢线圈的匝数增加一倍,其他条件不变,则:( )A.只是电动势的最大值增加一倍B.电动势的最大值和周期都增加一倍C.电动势的最大值和周期都减小一半D.只是频率减小一半,周期增加一倍 7、远距离输电线路如下图所示,若发电机的输出电压不变,则下列叙述中正确的是( )A 、 升压变压器的原线圈中的电流与用电设备消耗的功率无关B 、 输电线的电流只由升压变压器的副线圈的匝数比决定C 、 当用户用电器的总电阻减少时,输电线上损失的功率增大D 、 升压变压器的输出电压等于降压变压器的输入电压8、穿过闭合回路的磁通量Φ随时间t 变化的图像分别如图甲、乙、丙、丁所示,下列关于回路中产生的感应电动势的论述,正确的是: A .图甲中回路产生的感应电动势恒定不变 B .图乙中回路产生的感应电动势一直在变大C .图丙中回路在0~t 0时间内产生的感应电动势大于t 0~2t 0时间内产生的感应电动势D .图丁中回路i0.01 0.02 t/s0.03产生的感应电动势可能恒定不变9、一个闭合矩形线圈在匀强磁场中绕垂直于磁感线的轴匀速转动,产生的感应电流如图所示。
高二下学期英语期中考试真题卷03-(试卷配答案)

寄语:亲爱的小朋友,在学习过程中,的挑战就是逐级攀升的难度。
即使每一级都很陡峭,只要我们一步一个脚印地向上攀登,一层又一层地跨越,最终才能实现学习的目标。
祝愿你在学习中不断进步!相信你一定会成功。
相信你是最棒的!高二下学期期中考试英语真题卷第一部分听力(共两节,满分30分)略第二部分阅读(共两节、满分50分)第一节(共15小题:每小题2.5分、满分37.5分)阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项;并在答随卡上将该选项涂黑。
AA European Union programme is letting blind people experience famous paintings for the first time. It uses three dimensional (3-D)printing to recreate famous paintings so that they can be touched.One painting printed with the new technology is Gustav Klimt's The Kis. It is a popular attraction at the Belvedere Museum in Vienna, Austria. The painting shows a man and a woman standing in a field filed with flowers. They are wearing gold robes and have their arms around each other. The man leans down to kiss the woman.Klimt finished the painting in 1908. Until now. people who have trouble seeing cannot enjoy the artwork. But thanks to the reproduction(复制品)they can touch the piece and feel the ridges(隆起)and depressions(凹陷). Andreas Reichinger started making 3-Dversions of artwork in 2010. He said this reproduction was his most difficult project because the couple's robes are so detailed(精细的).Dominika Raditsch is a blind museum visitor. She touched the reproduction. As she moved her hands around it, she said, "Exactly, can you see these? There are so many details. "Raditsch said she can imagine what the original painting looks like when she touches the reproduction. "It's somehow round. You can feel it. It comes with it. And in many places it's so smooth. And then I think to myself it probably shines too!" Raditsch said.The Belvedere is not the only museum to have 3-D versions of its artworks. Some of the pieces at the Prado, in Madrid, Spain, have reproductions that can be touched. But the piece in Vienna has one special part: it is made with widely available 3-D printing technology. That means one day, blind art fans anywhere in the world coulddownload the source files and print the reproductions themselves.1. What is The Kiss?A. A European Union project.B. A popular painting.C. A 3-D technology.D. A famous museum.2. Why did Reichinger say this reproduction was difficult to finish?A. The painting was reproduced detailedly.B. The original artwork was made in 1908.C. Blind art fans can't download the source files.D. The 3-D technology is not available.3. What is the best title for the text?A. A European Union programme for museum visitorsB. How to reproduce the world-famous paintingsC. A special museum for art fans in Vienna, AustriaD. 3-D printing lets the blind experience famous paintingsB"Have you checked the oil in the car?" my father used to say to me, his way of "Hello, hope you are well." Sometimes our phone calls would begin with a question about the oil and end with a question about the oil, with not a lot in between.Fathers have a lot of love to give, but it's often offered by means of practical advice. In my experience: It's mostly about my car. "How's the car running?" "Did you get it serviced?" My car—an old green Toyota Corona bought for $500—was where my father showed his love.Why can't we fathers just say "I love you" or "It's great to see you"? The point is: that's exactly what we are saying. You just have to translate from the language that is Fatherlish. Listen closely enough and the phrase "I love you" can be heard in the slightly longer "I could come around Saturday and repair your chair." The words "You made my life better from the moment you were born" may be hardly heard, but the main meaning is there in the more common "I'll hold the ladder while you get the leaves down from the roof."When I was 17, I went on my first road trip—a friend and I in that old car. My father stood on the corner on a cold morning to say goodbye. "Highways are dangerous," he said, "so don't try overtaking anything faster than a horse and buggy. And take a break every two hours. And every time you stop for gas, you really should check the oil." At the time we thought his speech was pretty funny and would sing "horse-and-buggy" every time I tried to overtake some other speeding cars.Dad's long gone now. But after all these years, I realize that had I owned a copy of the Fatherlish-to-English dictionary, I'd have understood that the speech my friend and I so carelessly laughed at was simply Dad's attempt at love.4. Why did the author's father often ask about the car?A. To show his love for the car.B. To see if there is enough oil.C. To express his care to his son.D. To check the condition of the car.5. Which of the following sentences is an example of Fatherlish?A. I love you deeply.B. It's great to see you.C. You made my life better.D. I can check the oil for you.6. What does the underlined word "overtaking" in Paragraph 4 probably mean?A. Outrunning.B. ApproachingC. Crashing into.D. Knocking over.7. What can be inferred about the author in the last paragraph?A. He wanted to own a dictionary.B. He regrets his childish behavior.C. He is sad about his father's death.D. He realized his father's love then.CSharks may be able to smell blood from miles away, but they probably don't know how red it is. It is likely that they only see the world in black and white according to a study that is the first to look into sharks’ visual systems.A team at the University of Western Australia studied the visual systems of many different species of sharks and what they have found is diversity in eye design that mirrors the ecological and behavioral diversity of the shark species. The team looked at the retinal cells of 17 species of sharks caught from Queensland and Western Australia and found out that the cells are responsible for sharks’ color blindness.According to the study, these animals are color-blind due to the light receptors they have got in their eyes. There are two main types of light-sensitive ceils to allow animals to see: rod cells help measure brightness because they are highly sensitive to light and allow night vision but cannot tell colors apart, while various types of cone cells help distinguish colors. They looked at the structure of sharks' rod and cone cells in the retina. Human eyes come with red, green and blue cone variations, while sharks appear to have just one kind of cone cell.The study suggests that contrast against the background, rather than color itself, might be more important for object detection by sharks. Costumes that camouflage swimmers’ bodies in sea water are less likely to draw a shark’s attention than ones with bright, solid colors that emphasize their outline. “It’s the high contrast against thewater rather than the color itself which is probably attractive to sharks,” said Professor Nathan Hart who led the study.8. What does Paragraph 2 mainly talk about?A. Stressing the importance of the study.B. Showing the features of sharks’ eye design.C. Giving the process and the result of the study.D. Telling the functions of sharks’ visual systems.9. What leads to sharks’ blindness to color according to Paragraph 3?A. Their less sensitive rod cells.B. Their lack of various cone cells.C. Their inability to tell apart colors.D. Their strong sensitivity to brightness.10. What can be inferred in the last paragraph?A. The color plays a key part in sharks' detecting objects.B. You should make your outline stand out in the sea for your safety.C. You should be dressed in bright color to avoid sharks’ attention in the sea.D. Sharks are more interested in sharp contrast against the water rather than your body.11. What’s the writing purpose of the text?A. To challenge a traditional belief.B. To inform us a scientific discovery.C. To amuse us with interesting information.D. To raise our awareness of protecting wild animals.DToday, plastic is used in almost everything, from shopping bags and bottles to chairs and cars. Plastic has conquered the world. But do you know how it was first made?The first man-made plastic was created by Alexander Parkes, who introduced it at the 1862 Great International Exhibition in London. It was called Parkesine, and it was made from plant materials. Once heated, it could be molded, and it held its shape when cooled. Also, it could be made colored or transparent. However, it was too expensive to produce for common use.In the 19th century, billiards(a game played on a cloth-covered table)was so popular that a lot of elephants were being killed for their ivory, which was used to make billiard balls. So, people tried to find a substitute. A U.S. billiard ball company offered a prize of S10, 000 to the person who could design the best substitute for natural ivory. In 1866, JohWesley Hyatt created Celluloid while trying to win the prize. Although he failed to win, Celluloid was later used to make many products, including false teeth, piano keys, and ping pong balls.In 1909, Leo Backeland created Bakelite. Made entirely of artificial materials, it was the first true plastic. It was inexpensive, and it kept its shape when heated. Soon, it was being used in many things, including electrical products and jewelry. Since then, many other plastics have been developed.Today, most plastics are produced from non-natural materials made from petroleum. They are light, flexible, strong. and cheap. Despite all these advantages, there is one problem: plastic waste breaks down slowly and toxic chemicals can leak from it. Therefore, people are trying to develop less harmful plastics.12. How did Parkesine differ from other plastics motioned in the text?A. It was popularly used.B. It was flexible and cheap.C. It could break down quickly.D. It was made from plant materials.13. What can we know from the passage?A. Plastics could be easily got from plants.B. Bakelite could be heated without changing shape.C. Plastics made from petroleum have few advantages. uD. Celluloid was used to make billiard balls in the 19t century.14. What can be mostly talked about following the last paragraph?A. The disadvantages of plastic.B. Different products made from plastic.C. A chemist studying the history of plastic.D. The kind of eco-friendly materials to make plastic.15. What can be the suitable title for the text?A. How to Make PlasticB. The Inventors of PlasticC. From Plant to PetroleumD. New materials to Make Plastic第二节(共5小题;每小题2.5分,满分12.5分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
2021年高二下学期第三次模块考试英语试题

2021年高二下学期第三次模块考试英语试题本试卷分为第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分.满分120分,考试时间100分钟.第Ⅰ卷(共85分)注意事项:1.答第I卷前,考生务必将自己的姓名、准考证号、考试科目用铅笔涂写在答题卡上。
2.每小题选出答案后,用铅笔把答题卡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。
3.考试结束,将试卷和答题卡一并交回。
第一部分:听力(共两节,满分20分)第一节(共5小题;每小题1分,满分5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.W hat is the woman’s job?A.A cook B.A waitress C.A saleswoman2.What does the woman mean?A.She can help the man.B.The machine was just repairedC.The clerk doesn’t like to be troubled3.How does the man feel about his exam?A.He is happy B.He does not care C.He is disappointed4.What petition did Janet win first prize?A.The diving petitionB.The dancing petitionC.The driving petition5.Where does the conversation most probably take place?A.In a library B.In a bookstore C.In a class第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白,每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
人教版高二选修3-2综合测试及解析

人教版高二选修3-2综合测试注意事项:1.答题前填写好自己的姓名、班级、考号等信息2.请将答案正确填写在答题卡上第I 卷(选择题)一、选择题)A.(1)图中的圆形线圈水平,直导线在其某一条直径的正上方,直导线中通入变化的电流时,下面的线圈中会产生感应电流B.(2)图中蹄形磁铁绕轴(虚线)旋转时,其下方静止不动的铜盘里会产生感应电流C.若(3)图中导体棒沿图示方向在磁场中运动会产生感应电动势D.(4)图中由于导体线圈不闭合,所以磁铁靠近导体线圈的过程中,导体线圈中无感应电动势2.国庆阅兵时,我国的“飞豹FBC-1”型歼击轰炸机在天安门上空沿水平方向自东向西呼啸而过,该机的翼展为12.7 m ,北京地区地磁场的竖直分量为54.610T -⨯,该机飞过天安门的速度大小为272 m/s ,已知北京位于北半球,则下列说法正确的是( )A.该机两翼尖间的电势差为0.16 V ,左端电势高B.该机两翼尖间的电势差为0.016 V ,左端电势高C.该机两翼尖间的电势差为0.16 V ,右端电势高D.该机两翼尖间的电势差为0.016 V ,右端电势高3.如图所示,电路中有三个相同的灯泡1L 、2L 、3L ,电感线圈L 的电阻可忽略,D 为理想二极管.下列说法正确的是( )A.闭合开关S的瞬间,3L立即变亮,1L、2L逐渐变亮B.闭合开关S的瞬间,2L、3L立即变亮,1L逐渐变亮C.断开开关S的瞬间,2L立即熄灭,1L先变亮一下然后才熄灭D.断开开关S的瞬间,2L立即熄灭,3L先变亮一下然后才熄灭4.在匀强磁场中有一不计电阻的矩形线圈,绕垂直磁场的轴匀速转动,产生如图甲所示的正弦交流电,把该交流电接在图乙中理想变压器的A、B两端,电压表和电流表均为理想电表,t R为热敏电阻(温度升高时其电阻减小),R为定值电阻.下列说法正确的是()A.变压器原线圈两端电压的瞬时值表达式为50πu t=Vt=时,穿过该矩形线圈的磁通量的变化率为零B.在0.01sC.t R处温度升高时,由于变压器线圈匝数比不变,所以电压表1V、2V的比值不变D.t R处温度升高时,电流表的示数变小,变压器输入功率变小5.如图所示,在远距离输电电路中,发电厂的输出电压和输电电线的电阻均不变,变压器、电表均为理想化的.若发电厂的输出功率减小,则下列说法正确的是()A.电压表1V示数减小,电流表1A示数减小B.电压表2V 示数增大,电流表2A 示数增大C.输电线上损耗功率减小D.用户总功率与发电厂的输出功率的比值减小6.如图甲,间距为L 的光滑导轨水平放置在竖直向下的匀强磁场中,磁感应强度为B ,轨道左侧连接一定值电阻R .垂直导轨的导体棒ab 在水平外力F 作用下沿导轨运动,F 随t 变化的规律如图乙。
高二英语下学期第三次模块(期中)试题社

得夺市安庆阳光实验学校青岛二中高二英语下学期第三次模块(期中)试题本试卷分为第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,满分150分,考试时间120分钟。
第I卷(共95分)第一部分:听力(共两节,满分20分)第一节(共5小题;每小题1分,满分5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.What is the man looking for?A. His term paper.B. A website.C. A jobopportunity.2.How does the woman feel now?A. Angry.B. Puzzled.C. Surprised.3.Where are the speakers going next?A. To a café.B. To a lake.C. To a beach.4.What will the woman probably do next?A. Do some cooking.B. Clean up the floor.C. Meet the man’smother.5.What are the speakers mainly talking about?A. A theatre.B. A movie.C. A date.第二节 (共15小题,每小题1分,共15分)听下面5段对话或独白。
每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料,回答第6、7题。
6.What is Meg interested in?A. Science fiction movies.B. Horror movies.C. Rock music.7.Why did the man go to Meg’s house last night?A.To pick her up to the cinema.B.To have a date with her.C.To help her study.听第7段材料,回答第8至10题。
人教版高中物理选修3-2高二下学期期中模块考试(文)试题.docx

高中物理学习材料桑水制作山东省淄博一中2011—2012学年高二下学期期中模块考试物理(文)试卷注意事项:1、答卷前考生务必将自己的姓名、考号、考试科目涂写在答题卡上,考试结束,试题和答题卡一并收回。
2、每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号(ABCD)涂黑,如需改动,必须先用橡皮擦干净后再改涂其他答案标号;不能答在试题卷上。
3、全卷满分100分,考试时间为60分钟。
第Ⅰ卷(共60分)一、本题包括15个小题,每小题4分,共60分。
在每小题给出的四个选项中,只有一个选项是符合题目要求的,选对的得4分,选错的或不答的得0分。
1、在下列研究的运动中,物体可以看作质点的是()A、研究乒乓球的旋转运动B、研究游艇上螺旋桨的转动C、研究“和谐号”动车组从济南到青岛的运动D、研究地球的自转2、小球从2m高处落下,被地面弹回,在1m高处被接住,则小球在这一过程中()A、位移大小是3mB、位移大小是1mC、位移大小是2mD、路程是2m3、下列物理量中,不是矢量的是()A、加速度B、速度C、位移D、时间4、下列物理量的单位,属于加速度单位的是()A、kgB、m/sC、m/s2D、kg/m35、甲、乙两车从同一地点沿同一方向出发,如图是甲、乙两车的v—t图像,由图像判断可知()A、0-t1时间内,甲、乙两车的位移相等B 、t 1时刻甲、乙两车的速度相等C 、甲、乙两车的加速度相等D 、甲车做匀加速直线运动,乙车做匀减速直线运动6、同学们通过实验探究,得到了在发生弹性形变时,弹簧的弹力与弹簧伸长量的关系,下列说法中能反映正确的探究结果的是( )A 、弹簧的弹力跟弹簧的伸长量成正比B 、弹簧的弹力跟弹簧的伸长量成反比C 、弹簧的弹力跟弹簧的伸长量的平方成正比D 、弹簧的弹力跟弹簧的伸长量无关7、如图所示,重为10N 的物体静止在水平桌面上,现用2N 的水平推力F 向右推它,但未能推动,则物体所受到的摩擦力( )A 、方向向右,大小等于2NB 、方向向右,大小等于10NC 、方向向左,大小等于2ND 、方向向左,大小等于10N8、下列说法正确的是( )A 、合力一定小于每一个分力B 、力的合成遵守平行四边形定则C 、合力的方向一定与最大的分力方向相同D 、合力一定大于每一个分力9、F 1、F 2是两个共点力,其合力大小可能为10N 的一组是( )A 、F 1=6N 、F 2=3NB 、F 1=6N 、F 2=5NC 、F 1=5N 、F 2=3ND 、F 1=5N 、F 2=4N10、下列物理量中,量度物体惯性大小的物理量是( )A 、速度B 、加速度C 、牵引力D 、质量11、电梯内有一个质量为m 的物体用细线挂在电梯天花板上,当电梯以g/3的加速度竖直加速下降时,细线对物体的拉力为( )A 、mg 32B 、mg 31C 、mgD 、mg 34 12、下列各组单位符号中,属于国际单位制中基本单位的是( )A 、kg 、m 、JB 、N 、kg 、mC 、kg 、m 、sD 、N 、g 、m13、汽车拉着拖车在水平道路上沿直线加速行驶,则( )A 、汽车拉拖车的力大于拖车拉汽车的力B 、汽车拉拖车的力与拖车拉汽车的力大小相等C 、汽车拉拖车的力小于拖车拉汽车的力D 、汽车拉拖车的力与拖车受到的阻力大小相等14、当物体做曲线运动时( )A、物体所受合力一定是恒力B、物体所受合力一定是变力C、物体所受合力的方向跟它的速度方向一定在同一直线上D、物体所受合力的方向跟它的速度方向一定不在同一直线上15、若已知物体运动的初速度v0的方向及它受到的恒定的合外力F的方向,图a、b、c、d表示物体运动的轨迹,其中正确是的( )第Ⅱ卷(共40分)注意事项:1、答卷前要将答题纸上密封线内的项目填写清楚。
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图3
枣庄一中新校高二级部2015年第一次模块检测物理试题
本试卷分第1卷(选择题)和第II卷(非选择题)两部分,第I卷1至4页,第II卷5至8页。
满分100分,考试用时90分钟。
第I卷(选择题共40分)
注意事项:
1.答第I卷前,考生务必将自己的姓名、考号、考试科目、试卷类型用2B铅笔涂写在答题卡上。
考试结束,将答题卡和试卷第II卷一并交回。
2.每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦干净后,再选涂其它答案。
答在试题卷上。
一、本题包括10小题。
每小题4分,共40分。
每小题给出的四个选项中,有的只有一个选项正确,有的有多个选项正确。
全部选对得4分,选对不全的得2分,有选错的得0分。
1.如图所示,当磁铁处于下列哪种情况时,与线圈构成闭合回路的电阻中没有感应电流通过()
A、N向下运动插入线圈
B、S极向下运动插入线圈
C、N极向上从线圈中拔出
D、静止在线圈中不动
2.如图3所示,光滑绝缘的水平面上有两个离得很近的导体环a、b。
将条形磁铁沿它们的正中竖直向下移动(不到达该平面),下列说法中正确的是
A.磁铁靠近的过程中,两环相互靠近。
B.磁铁靠近的过程中,两环相互远离
C.两环中感应电流方向相反
D.两环中感应电流方向相同
3.法拉第电磁感应定律可以这样表述:闭合电路中的感应电动势的大小()
A、跟穿过这一闭合电路的磁感应强度成正比
B、跟穿过这一闭合电路的磁通量成正比
C、跟穿过这一闭合电路的磁通量的变化量成正比
D、跟穿过这一闭合电路的磁通量的变化率成正比
4.如图2所示,从匀强磁场中把不发生形变的矩形线圈匀速拉出磁场区,如果两次拉出的速度之比为1∶2,则两次线圈所受外力大小之比F1∶F2、线圈发热之比Q1∶Q2、通过线圈截面的电量q1∶q2之比分别为()
A.F1∶F2=2∶1,Q1∶Q2=2∶1,q1∶q2=2∶1
B.F1∶F2=1∶2,Q1∶Q2=1∶2,q1∶q2=1∶1
C.F1∶F2=1∶2,Q1∶Q2=1∶2,q1∶q2=1∶2
D.F1∶F2=1∶1,Q1∶Q2=1∶1,q1∶q2=1∶1
5. 如图, A、B是完全相同的两个小灯泡,L为自感系数很大、电阻可以忽略的带铁芯的线圈,下列说法正确的是()
A.开关K闭合的瞬间,A、B同时发光,随后A灯变暗,B
B.开关K闭合的瞬间,B灯亮,A灯不亮。
C.断开开关K的瞬间,A、B灯同时熄灭。
D.断开开关K的瞬间,B灯立即熄灭,A灯突然闪亮一下再熄灭
6.一矩形线圈,绕垂直于匀强磁场并位于线圈平面内的固定轴转动,线圈中的感应电动势e随时间t的变化规律如图所示,下列说法中正确的是
A.t1时刻通过线圈的磁通量最大
B.t2时刻通过线圈的磁通量最大
C.t3时刻通过线圈的磁通量变化率的绝对值最大
D.每当
e转换方向时,通过线圈的磁通量都为最大
图2
O
7. 如图7所示,理想变压器的副线圈上通过输电线接有两个相同的灯泡L 1和L 2,输电线的电阻等效为图中的电阻为R ,开始时,电键S 断开。
当S 接通时,以下说法中正确的是( )
A .副线圈两端M 、N 的输出电压减小
B .副线圈输电线等效电阻R 上的电压降增大
C .通过灯泡L 1的电流减小
D .原线圈中的电流增大
8. 远距离输电线路如下图所示,若发电机的输出电压不变,下列叙述中正确的是( )
A .升压变压器的原线圈中的电流与用电设备消耗的功率无关
B .输电线的电流只由升压变压器的副线圈的匝数比决定
C .当用户用电器的总电阻减少时,输电线上损失的功率增大
D .升压变压器的输出电压等于降压变压器的输入电压
9. 如图是测量汽车质量的地磅示意图,汽车的质量可通过电流表的示数读出,下列说法正确的是
A .电流表的示数越大说明被测汽车质量越大
B .电流表的示数越大说明被测汽车质量越小
C .把图中的电流表换成电压表同样能测量汽车的质量
D .地磅的最大量程只由弹簧的劲度系数决定,与电路的有关参数无关
10.关于分子动理论说法正确的是( ) A. 气体分子的间距大约是固体、液体的10倍 B .布朗运动反映了固体分子永不停息的做无规则运动
C .当两个分子间距离超过r 0时,斥力消失,只有引力的存在。
D .用油膜法测出分子直径后,若要计算N A ,还需要知道油滴的摩尔质量和密度
图
7
第II 卷(非选择题 共60分)
注意事项:
1.第II 卷共4页,用黑色签字笔直接答在试题卷上(除题目有特殊规定外).
二、本题共2小题,共17分。
请将答案填在题中的横线上或按题目要求作答。
11.(8分)如图为一理想变压器,原副线圈匝数比为
n 1:n 2=5:1,副载电阻为10Ω,原线圈接100V 交流电源,则副线圈两端电压U 2= _________ V,原线圈中电流I 1= ___________A
12. (9分)在“油膜法估测油酸分子的大小”实验中,有下列实验步骤: ①往边长约为40 cm 的浅盘里倒入约2 cm 深的水.待水面稳定后将适量的____________均匀地撒在水面上。
②用注射器将事先配好的油酸酒精溶液滴一滴在水面上,待薄膜形状稳定。
③将画有油膜形状的玻璃板平放在坐标纸上,计算出油膜的面积,根据油酸的体积和面积计算出油酸分子直径的大小。
④用注射器将事先配好的油酸酒精溶液一滴一滴地滴入量筒中,记下量筒内每增加一定体积时的滴数,由此计算出一滴油酸酒精溶液的体积。
⑤将玻璃板放在浅盘上,然后将油膜的形状用彩笔描绘在玻璃板上。
完成下列填空: ⑴上述步骤中,正确的顺序是__________。
(填写步骤前面的数字) ⑵①步骤中空应该填_______________(3)将1 cm 3的油酸溶于酒精,制成300 cm 3的油酸酒精溶液;测得l cm 3 的油酸酒精溶液有50滴。
现取一滴该油酸酒精溶液滴在水面上,测得所形成的油膜的面积是0.13 m 2。
由此估算出油酸分子的直径为_________m 。
(结果保留l 位有效数字)
三、计算题 本题共4小题,共43分。
解答应写出必要的文字说明、方程式和重要的演算步骤,只写出最后答案的不能得分,有数值计算的题,答案中必须明确写出数值和单位。
13.
(8分)如图
12-a 所示是在环境温度为10℃左右的条件下工作的某自动恒温箱原
理简图。
箱内电阻R 1=20 kΩ,R 2=10 kΩ,R 3=40 kΩ,R 4为热敏电阻,其阻值随温度变
化的图线如图12-b 所示。
当电压鉴别器两接入点a 、b 的电势ϕa <ϕb 时,鉴别器将自动使电键K 接通,使恒温箱内的电热丝发热,从而使箱内温度升高;当ϕa >ϕb 时,鉴别器将使K 断开,停止加热。
求:(1)根据以上说明,判定该恒温箱内的温度将保持在多少摄氏度?
(2)若想使恒温箱内的温度保持在30℃,而保持R 1 、R 2不变,应该把R 3更换成阻值为多大的定值电阻?
图
12
a
b
市(区):_____ 学校:_____ 姓名:_____ 班级:____ 准考证号:_____
14.(12分)如图所示,在与水平方向成θ=30°角的平面内放置两条平行、光滑且足够长的金属轨道,其电阻可忽略不计。
空间存在着匀强磁场,磁感应强度B =0.20T ,方向垂直轨道平面向上。
导体棒ab 、cd 垂直于轨道放置,且与金属轨道接触良好构成闭合回路,每根导体棒的质量m =2.0×10-2
kg 、电阻r =5. 0×10-2
Ω,金属轨道宽度l =0.50m 。
现对导体棒ab 施加平行于轨道向上的拉力,使之沿轨道匀速向上运动。
在导体棒ab 运动过程中,导体棒cd 始终能静止在轨道上。
g 取10m/s 2, 求: (1)导体棒cd 受到的安培力大小; (2)导体棒ab 运动的速度大小; (3)拉力对导体棒ab 做功的功率。
15. (10分)如图所示为某学校一套校内备用供电系统,由一台内阻为1Ω的发电机向全校22个教室(每个教室有“220V,40W"的白炽灯6盏)供电.如果输电线的总电阻R 是4Ω,升压变压器和降压变压器(都认为是理想变压器)的匝数比分别是1:4和4:1,那么: (1)发电机的输出功率应是多大? (2)发电机的电动势是多大?
15.(13分)交流发电机的原理如图15所示,闭合的矩形线圈放在匀强磁场中,绕OO'轴匀速转动,在线圈中产生的交变电流随时间变化的图象如图19-b 所示,已知线圈的电阻为R =2.0 Ω。
求:
(1)通过线圈导线的任一个横截面的电流的最大值是多少? (2)矩形线圈转动的周期是多少? (3)线圈电阻上产生的电热功率是多少?
(4)保持线圈匀速转动,1 min 内外界对线圈做的功是多少?
图
15。