广东工业大学大学物理学2013年、2019年考研真题试题
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广东工业大学考研历年真题【第一部分:单项填空】1. However, some actors _____ us with the deep feelings they can inspire in us for a character they are playing. [单选题] *A.astonishedB. astonishingC. astonish(正确答案)D. is astonished2. He was a _____ figure in the French film industry. [单选题] *A. dominantlyB. dominant(正确答案)C. dominanceD. dominants3. The morning after your arrival, you meet with the _____ physician for a private consultation. [单选题] *A. residentsB. resident(正确答案)C. residenceD. residences4._____a reply, he decided to write again. [单选题] *A. Not receivingB. ReceivingC. Not having received(正确答案)D. Having not received5.With lots of trees and flowers _____here and there, the city looks very beautiful. [单选题] *A. having plantedB. planted(正确答案)C. have been plantedD. to be planted6. I have bought two ball-pens, _______ writes well. [单选题] *A. none of themB. neither of themC. neither of which(正确答案)D. none of which7.Great changes have taken place since then in the factory _______we are working. [单选题] *A.where(正确答案)B.hatC.whichD.there8.The engineer ______my father works is about 50 years old. [单选题] *A. to whomB. on whomC. with whichD. with whom(正确答案)9.The reason ______he didn't come was ______he was ill. [单选题] *A. why; that(正确答案)B.that;whyC. for that;thatD.for which;what10. Is _______ some German friends visited last week? [单选题] *A. this schoolB. this the schoolC. this school oneD. this school where(正确答案)11. They are not very good, but we like_______. [单选题] *A. anyway to play basketball with themB. to play basketball with them anyway(正确答案)C. to play with them basketball anywayD. with them to play basketball anyway12. He sent me an e-mail, _______to get further information. [单选题] *A. hopedB hoping(正确答案)C. to hopeD. hope13._____in 1636, Harvard is one of the most famous universities in the United States. [单选题] *A. Being roundedB it was foundedC. Founded(正确答案)D. Founding14.The ____boy was last seen ______near the East Lake. [单选题] *A. Missing, playing(正确答案)B. missing, playC missed, playedD missed, to play15. Tony was very unhappy for _______ to the party. [单选题] *A. having not been invitedB. not having invitedC. having not invitedD not having been invited(正确答案)【第二部分:完形填空】A new study found that inner-city kids living in neighborhoods with more green spacegained about 13% less weight over a two-year period than kids living amid more concrete and fewer trees. Such __62__ tell a powerful story. The obesity epidemic began in the 1980s, and many people __63__ it to increased portion sizes and inactivity, but that can't be everything. Fast foods and TVs have been __64__ us for a long time. "Most experts agree that the changes were __65__ to something in the environment," says social epidemiologist Thomas Glass of The Johns Hopkins Bloomberg School of Public Health. That something could be a __66__ of the green.The new research, __67__ in the American Journal of Preventive Medicine, isn't the first to associate greenery with better health, but it does get us closer __68__ identifying what works and why. At its most straightforward, a green neighborhood __69__ means more places for kids to play – which is __70__ since time spent outdoors is one of the strongest correlates of children's activity levels. But green space is good for the mind__71__: research by environmental psychologists has shown that it has cognitive __72__ for children with attention-deficit disorder. In one study, just reading __73__ in a green setting improved kids' symptoms.__74__ to grassy areas has also been linked to __75__ stress and a lower body mass index (体重指数) among adults. And an __76__ of 3,000 Tokyo residents associated walkable green spaces with greater longevity (长寿) among senior citizens.Glass cautions that most studies don't __77__ prove a causal link between greenness and health, but they're nonetheless helping spur action. In September the U. S. House of Representatives __78__ the delightfully named No Child Left Inside Act to encourage public initiatives aimed at exposing kids to the outdoors.Finding green space is not __79__ easy, and you may have to work a bit to get your family a little grass and trees. If you live in a suburb or a city with good parks, take__80__ of what's there. Your children in particular will love it – and their bodies and minds will be __81__ to you.16. [单选题] *A) findings(正确答案)B) thesesC) hypothesesD) abstracts17. [单选题] *A) adaptB) attribute(正确答案)C) allocateD) alternate18. [单选题] *A) amongstB) alongC) besideD) with(正确答案)19. [单选题] *A) gluedB) related(正确答案)C) trackedD) appointed20. [单选题] *A) scrapingB) denyingC) depressingD) shrinking(正确答案)21. [单选题] *A) published(正确答案)B) simulatedC) illuminatedD) circulated22. [单选题] *A)atB)to(正确答案)C)forD)over23. [单选题] *A) fullyB) simply(正确答案)C) seriouslyD) uniquely24. [单选题] *A)vital(正确答案)B)casualC)fatalD)subtle25. [单选题] *A) stillB) alreadyC) too(正确答案)D) yet26. [单选题] *A) benefits(正确答案)B) profitsC) revenuesD) awards27. [单选题] *A) outwardB) apartC) asideD) outside(正确答案)28. [单选题] *A) ImmunityB) ReactionC) Exposure(正确答案)D) Addiction29. [单选题] *A)muchB)less(正确答案)C)moreD)little30. [单选题] *A) installmentB) expeditionC) analysis(正确答案)D) option31. [单选题] *A) curiouslyB) negativelyC) necessarily(正确答案)D) comfortably32. [单选题] *A) relievedB) delegatedC) approved(正确答案)D) performed33. [单选题] *A)merelyB)always(正确答案)C)mainlyD)almost34. [单选题] *A) advantage(正确答案)B) exceptionC) measureD) charge35. [单选题] *A) elevatedB) mercifulC) contentedD) grateful(正确答案)【第三部分:阅读理解】Passage 1Will there ever be another Einstein? This is the undercurrent of conversation at Einstein memorial meetings throughout the year. A new Einstein will emerge, scientists say. But it may take a long time. After all, more than 200 years separated Einstein from his nearest rival, Isaac Newton.Many physicists say the next Einstein hasn’t been born yet, or is a baby now. That’s because the quest for a unified theory that would account for all the forces of nature has pushed current mathematics to its limits. New math must be created before the problem can be solved.But researchers say there are many other factors working against another Einsteinemerging anytime soon.For one thing, physics is a much different field today. In Einstein’s day, there were only a few thousand physicists worldwide, and the theoreticians who could intellectually rival Einstein probably would fit into a streetcar with seats to spare.Education is different, too. One crucial aspect of Einstein’s training that is overlooked is the years of philosophy he read as a teenager—Kant, Schopenhauer and Spinoza, among others. It taught him how to think independently and abstractly about space and time, and it wasn’t long before he became a philosopher himself.“The independence created by philosophical insight is—in my opinion—the mark of distinction between a mere artisan (工匠) or specialist and a real seeker after truth,”Einstein wrote in 1944.And he was an accomplished musician. The interplay between music and math is well known. Einstein would furiously play his violin as a way to think through a knotty physics problem.Today, universities have produced millions of physicists. There aren’t many jobs in science for them, so they go to Wall Street and Silicon Valley to apply their analytical skills to more practical—and rewarding—efforts.“Maybe there is an Einstein out there today,” said Columbia University physicist Brian Greene, “but it would be a lot harder for him to be heard.”Especially considering what Einstein was proposing.“The actual fabric of space and time curving? My God, what an idea!” Greene said at a recent gathering at the Aspen Institute. “It takes a certain type of person who will bang his head against the wall because you believe you’ll find the solution.”Perhaps the best examples are the five scientific papers Einstein wrote in his “miracle year” of 1905. These “thought experiments” were pages of calculations signed and submitted to the prestigious journal Annalen der Physik by a virtual unknown. There were no footnotes or citations.What might happen to such a submission today?“We all get papers like those in the mail,” Greene said. “We put them in the junk file.”36. What do scientists seem to agree upon, judging from the first two paragraphs? [单选题] *[A] Einstein pushed mathematics almost to its limits.[B] It will take another Einstein to build a unified theory.[C] No physicist is likely to surpass Einstein in the next 200 years.[D] It will be some time before a new Einstein emerges.(正确答案)37. What was critical to Einstein’s success? [单选题] *[A] His talent as an accomplished musician.[B] His independent and abstract thinking.(正确答案)[C] His untiring effort to fulfill his potential.[D] His solid foundation in math theory.38. What does the author tell us about physicists today? [单选题] *[A] They tend to neglect training in analytical skills.[B] They are very good at solving practical problems.[C] They attach great importance to publishing academic papers.[D] They often go into fields yielding greater financial benefits.(正确答案)39. What does Brian Greene imply by saying “... it would be a lot harder for him to be heard” (Lines 1-2, Para. 9)? [单选题] *[A] People have to compete in order to get their papers published.[B] It is hard for a scientist to have his papers published today.[C] Papers like Einstein’s would unlikely get published today.[D] Nobody will read papers on apparently ridiculous theories.(正确答案)40. When he submitted his papers in 1905, Einstein _______. [单选题] *[A] forgot to make footnotes and citations[B] was little known in academic circles(正确答案)[C] was known as a young genius in math calculations[D] knew nothing about the format of academic papersPassage 2The relationship between formal education and economic growth in poorcountries is widely misunderstood by economists and politicians alike. Progress in both areas is undoubtedly necessary for the social, political, and intellectual development of these and all other societies; however, the conventional view that education should be one of the very highest priorities for promoting rapid economic development in poor countries is wrong. We are fortunate that it is, because building new educational systems there and putting enough people through them to improve economic performance would require two or three generations. The findings of a research institution have consistently shown that workers in all countries can be trained on the job to achieve radically higher productivity and, as a result, radically higher standards ofliving.Ironically, the first evidence for this idea appeared in the United States. Not long ago, with the country entering a recession and Japan at its pre-bubble peak, the U.S. workforce was derided as poorly educated and one of the primary causes of the poor U.S. economic performance. Japan was, and remains, the global leader in automotive-assembly productivity. Yet the research revealed that the U.S. factories of Honda, Nissan, and Toyota achieved about 95 percent of the productivity of their Japanese counterparts - a result of the training that U.S. workers received on the job.More recently, while examining housing construction, the researchers discoveredthat illiterate, non-English-speaking Mexican workers in Houston, Texas, consistently met best-practice labor productivity standards despite the complexity of the building industry's work.What is the real relationship between education and economic development? Wehave to suspect that continuing economic growth promotes the development of education even when governments don't force it. After all, that's how education got started. When our ancestors were hunters and gatherers 10, 000 years ago, they didn't have time to wonder much about anything besides finding food. Only when humanity began to get its food in a more productive way was there time for other things.As education improved, humanity's productivity potential increased as well.When the competitive environment pushed our ancestors to achieve that potential,they could in tum afford more education. This increasingly high level of education is probably a necessary, but not a sufficient, condition for the complex political systems required by advanced economic performance. Thus poor countries might not be ableto escape their poverty traps without political changes that may be possible only with broader formal education. A lack of formal education, however, doesn't constrain the ability of the developing world's workforce to substantially improve productivity forthe foreseeable future. On the contrary, constraints on improving productivity explain why education isn't developing more quickly there than it is.41. The author holds in Paragraph 1 that the importance of education in poor [单选题] * countries[A] is subject to groundless doubts.[B] has fallen victim of bias.[C] is conventionally downgraded.[D] has been overestimated.(正确答案)42. It is stated in Paragraph 1 that the construction of a new educational system [单选题] *[A] challenges economists and politicians.[B] takes efforts of generations.(正确答案)[C] demands priority from the government.[D] requires sufficient labor force.43. A major difference between the Japanese and U.S. workforces is that [单选题] *[A] the Japanese workforce is better disciplined.[B] the Japanese workforce is more productive.(正确答案)[C] the U.S. workforce has a better education.[D] the U.S. workforce is more organized.44. The author quotes the example of our ancestors to show that education emerged [单选题] *[A] when people had enough time.[B] prior to better ways of finding food.[C] when people no longer went hungry.(正确答案)[D] as a result of pressure on government.45. According to the last paragraph, development of education [单选题] *[A] results directly from competitive environments.[B] does not depend on economic performance.[C] follows improved productivity.(正确答案)[D] cannot afford political changes.Passage 3A symbiotic relationship is an interaction between two or more species in which one species lives in or on another species. There are three main types of symbiotic relationships: parasitism, commensalism, and mutualism. The first and the third can be key factors in the structure of a biological community; that is, all the populations oforganisms living together and potentially interacting in a particular area.Parasitism is a kind of predator-prey relationship in which one organism, the parasite, derives its food at the expense of its symbiotic associate, the host. Parasites are usually smaller than their hosts. An example of a parasite is a tapeworm that lives inside the intestines of a larger animal and absorbs nutrients from its host. Natural selection favors the parasites that are best able to find and feed on hosts. At the same time, defensive abilities of hosts are also selected for. As an example, plants make chemicals toxic to fungal and bacterial parasites, along with ones toxic to predatory animals (sometimes they are the same chemicals). In vertebrates, the immune system provides a multiple defense against internal parasites.At times, it is actually possible to watch the effects of natural selection in host-parasite relationships. For example, Australia during the 1940 s was overrun by hundreds of millions of European rabbits. The rabbits destroyed huge expanses of Australia and threatened the sheep and cattle industries. In 1950, myxoma virus, a parasite that affects rabbits, was deliberately introduced into Australia to control the rabbit population. Spread rapidly by mosquitoes, the virus devastated the rabbit population. The virus was less deadly to the offspring of surviving rabbits, however, and it caused less and less harm over the years. Apparently, genotypes (the genetic make-up of an organism) in the rabbit population were selected that were better able to resist the parasite. Meanwhile, the deadliest strains of the virus perished with their hosts as natural selection favored strains that could infect hosts but not kill them. Thus, natural selection stabilized this host-parasite relationship.In contrast to parasitism, in commensalism, one partner benefits without significantly affecting the other. Few cases of absolute commensalism probably exist, because it is unlikely that one of the partners will be completely unaffected. Commensal associations sometimes involve one species' obtaining food that is inadvertently exposed by another. For instance, several kinds of birds feed on insects flushed out of the grass by grazing cattle. It is difficult to imagine how this could affect the cattle, but the relationship may help or hinder them in some way not yet recognized.The third type of symbiosis, mutualism, benefits both partners in the relationship Legume plants and their nitrogen-fixing bacteria, and the interactions between flowering plantsand their pollinators, are examples of mutualistic association. In the first case, the plants provide the bacteria with carbohydrates and other organic compounds, and the bacteria have enzymes that act as catalysts that eventually add nitrogen to the soil, enriching it. In the second case, pollinators (insects, birds) obtain food from the flowering plant, and the plant has its pollen distributed and seeds dispersed much more efficiently than they would be if they were carried by the wind only. Another example of mutualism would be the bull's horn acacia tree, which grows in Central and South America. The tree provides a place to live for ants of the genus Pseudomyrmex. The ants live in large, hollow thorns and eat sugar secreted by the tree. The ants also eat yellow structures at the tip of leaflets: these are protein rich and seem to have no function for the tree except to attract ants. The ants benefit the host tree by attacking virtually anything that touches it. They sting other insects and large herbivores (animals that eat only plants) and even clip surrounding vegetation that grows near the tree. When the ants are removed, the trees usually die, probably because herbivores damage them so much that they are unable to compete with surrounding vegetation for light and growing space.The complex interplay of species in symbiotic relationships highlights an important point about communities: Their structure depends on a web of diverse connections among organisms.46.Which of the following statements about commensalism can be inferred from paragraph 1? [单选题] *[A]It excludes interactions between more than two species.[B]It makes it less likely for species within a community to survive.[C]Its significance to the organization of biological communities is small.(正确答案)[D]Its role in the structure of biological populations is a disruptive one.47.According to paragraph 2. which of the following is true of the action of natural selection on hosts and parasites? [单选题] *[A]Hosts benefit more from natural selection than parasites do.[B]Both aggression in predators and defensive capacities in hosts are favored for species survival.(正确答案)[C]The ability to make toxic chemicals enables a parasite to find and isolate its host.[D]Larger size equips a parasite to prey on smaller host organisms.48.Which of the following can be concluded from the discussion in paragraph 3 about theAustralian rabbit population? [单选题] *[A]Human intervention may alter the host, the parasite. and the relationship between them.(正确答案)[B]The risks of introducing outside organisms into a biological community are not worth the benefits.[C]Humans should not interfere in host-parasite relationships.[D]Organisms that survive a parasitic attack do so in spite of the natural selection process.49.According to paragraph 3, all of the following characterize the way natural selectionstabilized the Australian rabbit population EXCEPT: [单选题] *[A]The most toxic viruses died with their hosts.[B]The surviving rabbits were increasingly immune to the virus.[C]The decline of the mosquito population caused the spread of the virus to decline.(正确答案)[D]Rabbits with specific genetic make-ups were favored.50.According to paragraph 5. which of the following is NOT true of the relationshipbetween the bull's horn acacia tree and the Pseudomyrmex ants? [单选题] *[A]Ants defend the host trees against the predatory actions of insects and animals.[B]The acacia trees are a valuable source of nutrition for the ants.[C]The ants enable the acacia tree to produce its own chemical defenses.(正确答案)[D]The ants protect the acacia from having to compete with surrounding vegetation.。
广东工业大学2004年研究生入学物理化学试题考试科目(代码):物理化学(423)招生专业:应用化学、化学工艺、环境工程注:试卷封面需填写自己的准考证号,考生必须在答题纸上答题(含填充题、选择题),答完后连同本试题一并交回。
一、选择题(30分,每题2分)1.若系统经历一任意不可逆过程后则该系统的熵变ΔS()。
A 一定大于零;B一定小于零;C 一定等于零;D 可能大于零也可能小于零。
2. 某一化学反应,已知其ΔrC P。
m<0,则该反应的ΔrΗmΘ的数值随温度升高而()。
A 增大;B 减少;C 不变;D 不能肯定。
3.某气体反应 2A+B C + D 为吸热反应,已知25℃时,其KΘ= 105,则 50℃时其KΘ应( )。
A 大于105;B 小于105;C 等于105;D 不能确定。
4.二组分理想液态混合物的总的蒸汽压()。
A 与混合物的组成无关;B 介于两纯组分的蒸汽压之间;C 大于任一纯组分的蒸汽压;D 小于任一纯组分的蒸汽压。
5.在描述恒沸混合物时,下列各点中哪一点是不正确的()。
A 与化合物一样具有确定的组成;B 不具有确定的组成;C 平衡气相和液相组成相同;D 恒沸点随外压的改变而改变。
6.直流电通过一含Cu2+的电解质时,当消耗0.5F电量时,阴极析出12克铜,其电流效率为()%。
其中M(Cu)=64g/mol.A. 100 ,B. 75 ,C. 50,D. 25 。
7.对给定化学反应A+B 2D,在动力学研究中肯定为()。
A.二级反应,B. 双分子反应,C. 基元反应。
D. 反应物与产物摩尔数的计量关系。
8.在抽空密闭容器中加热NH4Cl(s),它有一部分分解成NH3(g)和HCl(g),当系统建立平衡时,其组分数C和自由度F是( ) A.C=1,F=1 B.C=2,F=2 C.C=3,F=3 D.C=2,F=19.对于组成不变的均相封闭体系,在w'=0的条件下,=( ) A B C D11 298K将AgNO3滴入KI(过量)溶液中形成的溶胶,下列电解质中哪种聚沉能力最大?()A LiNO3B KNO3C CaCl2D Na2SO412.下列性质中哪个不属于胶体的性质( ) A.布朗运动 B.电导 C.电泳 D.沉降平衡13.气体被液化的必要条件是( ) A.气体温度低于沸点 B.气体温度低于临界温度 C.气体压力大于临界压力 D.气体温度小于波义尔温度14. 一定体积的水,当分散成许多小水滴,同温度下两种状态相比,以下性质保持不变的是( )A.饱和蒸汽压 B.表面积 C.液面下的附加压力 D.表面张力15.将半径相同的三根玻璃毛细管分别插入乙醇水溶液、NaCl水溶液及纯水中,毛细管中液面上升的高度分别为h1、、h2、h3则()。
广东工业大学
2019年博士学位研究生招生考试试题
考试科目(代码)名称:(2014)直�物结构与性能满分100分
I.从结构上简述高分子的聚集诱导发光(AIE)原理(I 0分)
2.Kevlar纤维高强性能的结构内因是什么?( I 0分)
3.说明SBS热塑性弹性体的结构特征与性能的关系。
C12分)
4.试解释接触角与表面结构的关系。
(10分)
5.什么叫。
温度,假定溶液的温度高于、等于和低于8温度时,试分别讨论溶液的热力学性质和高分子的尺寸变化。
(15分)
6.举例说明温度-压力·时j司等效原理(12分)
7.高聚物增塑后其拌性模量、抗冲击强度、抗蠕变性、耐热性、低温脆化点有什么变化?试说明原因。
( 13分)
8.请用Flory的自由体积理论来解释聚合物性能与玻璃化转变之间的关系(包括结晶度、分子量、主链结构、侧链取代基、支化度和交联度等)( 18分)
第l页共l页。
广东工业大学物理化学1试卷(A卷)一、选择题(20分。
每小题2分)1、某一化学反应,已知其△rCp.m<0,则该反应的△rHm的数值随温度升高而()A、增大,B、减少,C、不变,D、不能肯定2、影响化学平衡常数的因素有()。
A、催化剂,B、浓度,C、压力,D、温度3、α、β相中都含有A,B两种物资,当达到两相平衡时,下列哪种情况是正确的()A、υA(β)= υB(β),B、υA(α)>υB(α)C、υA(α)=υA(β);D、υA(α)=υB(β)。
4、海水的沸点为()。
A、100℃,B、高于100℃,C、低于100℃,D、无法判断5、气相反应2A(g)+B(g)=2C是放热的,当反应达到平衡时可采用下列哪组条件,使平衡向右移动()A,降低温度和降低压力;B,升高温度和增大压力C,升高温度和降低压力;D,降低温度和增大压力6,二组分理想液态混合物的蒸汽总压为()A,介于两纯组分的蒸汽压之间;B,与混合物的组成无关;C,大于任一纯组分的蒸汽压;D,小于任一纯组分的蒸汽压。
7、在描述哼沸混合物时,下列各点中哪一点是不正确的()A。
,与化合物一样具有确定的组成;B,不具有确定的组成;C,平衡气相和液态组成相同;D,恒沸点随外压的改变而改变。
8、若体系吸收200KJ·mol-1的热量,并对环境做功300KJmol-1,则内能变化为△U=()A、100KJ·mol-1;B、-100KJ·mol-1;C、400KJ·mol-1;D、-400KJ·mol-19、NH3Cl(g)放入某抽真空的密闭容器中,按下式NH4Cl(s)=NH3(g)+HCl(g)分解达平衡时,()。
A、C=3,P=2,F=3;B、C=2,P=2,F=2;C、C=1,P=2,F=1;D、C=2,P=3,F=1.10、纯物质在三相点时自由度为()A,0; B,1; C,2; D,3二,填空题(20分。
广东工业大学广工大835材料科学基础2014考研真题答案2014年835真题答案详解一、填空1、【1】EIH【2】EIJ【3】9°2、【4】18(点阵几何点的数目)【5】8【6】0.343、【7】零维4、【8】Su3sb2【9】非稳态化合物5、【15】固溶体【16】中间相【17】电子浓度【18】原子尺寸【19】电负性【20】固溶体【21】电负性【22】金属化合物6、【23】吞并长大7、【24】铁素体【25】奥氏体二、判断题1、错非晶态材料,常被称为金属玻璃,其结构特点在于短程有序而长程无序。
2、对面心立方:(111),[110] 体心立方:(110),[111] 六方结构:(0001),[1̅1̅20]3、错扩散第一定律阐述了一个基本且恒定的物理现象,即扩散过程中的浓度变化率(或扩散通量)不随时间发生变化,保持恒定。
这一定律强调了扩散行为在特定条件下的稳定性和可预测性。
4、错淬火过程:淬火处理会导致材料内部晶格结构发生畸变,这种结构变化进而引起电阻率的增加,使得材料的导电性能下降。
退火效应:随后进行的退火处理,通过加热并缓慢冷却的方式,能够使淬火过程中产生的晶格畸变得到恢复,从而降低了电阻率。
这一变化直接提升了材料的导电性能,使其导电性变好。
冷加工影响:另一方面,冷加工(如冷轧、冷拉等)过程会引入额外的应力和缺陷到材料中,导致电阻率上升,进而使导电性能变差。
退火态与冷加工态对比:综上所述,相较于冷加工后的状态,退火态的材料因其更低的电阻率和更好的晶格完整性,展现出更优的导电性能。
因此,退火态材料比冷加工态材料的导电性更好。
5、对同2015.56、错 Cu与Ni在液态及固态条件下均能实现无限互溶,这一现象可通过匀晶相图来直观表示。
在匀晶相图中,Cu与Ni的混合展示了从一种纯金属(如纯Cu或纯Ni)逐渐过渡到另一种纯金属时,中间不形成任何新相(即化合物或中间相),而是保持固溶体状态,且溶解度在液固两相中均为无限大。
广东工业大学(2010原版试卷代理5元一份)机电工程学院机械设计2001——2003,2008-2010 微机原理(控制理论与控制工程、检测技术与自动化装置专业)2001 微机原理(自)(控制工程、检测技术、系统工程专业)2002 微机原理(控制工程、检测技术、系统工程专业)2003 微机原理(控制理论与控制工程、检测技术与自动化装置、系统工程、电力系统及其自动化专业)2005 微机原理(机电、机设)(机械电子工程、机械设计及理论专业)2000 微机原理(Z80)(机械电子工程、机械设计及理论专业)2001 微机原理(测试计量技术与仪器、信号与信息处理专业)2005 微机原理及应用(电力电子)(电力电子与电力传动专业)2000 微机原理及应用(电力电子与电力传动专业)2001,2003 微机原理及应用(机电、机设、机制专业)(8086CPU)2002——2003 微机原理与接口(测试计量技术与仪器专业)2002——2003 C语言(通讯与信息系统、信号与信息处理专业)2007 C语言(通信与信息处理、信号与信息处理专业)2008——2009 C语言程序设计(机械制造及其自动化、机械电子工程、机械设计及理论、信号与信息处理专业)2005——2006 C语言程序设计(机)(机制、机械电子工程、机械设计及理论专业)2003 C语言程序设计(机)(机械电子工程、机械设计及理论专业)2002 C语言程序设计(机械电子工程专业)2000——2001 C语言程序设计(计算机应用技术专业)2001 C语言程序设计(计)(计算机应用技术专业)2002 C语言与数据结构(计算机应用技术专业)2000 材料与能源学院大学物理2002——2003 材料力学2001——2003,2005 金属材料及热处理2001——2002 高分子物理2005 信息工程学院C语言(通讯与信息系统、信号与信息处理专业)2007 C语言(通信与信息处理、信号与信息处理专业)2008——2009 C语言程序设计(机械制造及其自动化、机械电子工程、机械设计及理论、信号与信息处理专业)2005——2006 C语言程序设计(机)(机制、机械电子工程、机械设计及理论专业)2003 C语言程序设计(机)(机械电子工程、机械设计及理论专业)2002 C语言程序设计(机械电子工程专业)2000——2001 C语言程序设计(计算机应用技术专业)2001 C语言程序设计(计)(计算机应用技术专业)2002 C语言与数据结构(计算机应用技术专业)2000 微机原理(控制理论与控制工程、检测技术与自动化装置专业)2001 微机原理(自)(控制工程、检测技术、系统工程专业)2002 微机原理(控制工程、检测技术、系统工程专业)2003 微机原理(控制理论与控制工程、检测技术与自动化装置、系统工程、电力系统及其自动化专业)2005 微机原理(机电、机设)(机械电子工程、机械设计及理论专业)2000 微机原理(Z80)(机械电子工程、机械设计及理论专业)2001 微机原理(测试计量技术与仪器、信号与信息处理专业)2005 微机原理及应用(电力电子)(电力电子与电力传动专业)2000 微机原理及应用(电力电子与电力传动专业)2001,2003 微机原理及应用(机电、机设、机制专业)(8086CPU)2002——2003 微机原理与接口(测试计量技术与仪器专业)2002——2003 机械设计基础2002——2003 控制理论基础2002——2003 数字电子技术2003 自动化学院电路理论2007——2009 页)电路2005——2006(注:2005年试卷共7页,缺第3-7页)微机原理(控制理论与控制工程、检测技术与自动化装置专业)2001 微机原理(自)(控制工程、检测技术、系统工程专业)2002 微机原理(控制工程、检测技术、系统工程专业)2003 微机原理(控制理论与控制工程、检测技术与自动化装置、系统工程、电力系统及其自动化专业)2005 微机原理(机电、机设)(机械电子工程、机械设计及理论专业)2000 微机原理(Z80)(机械电子工程、机械设计及理论专业)2001 微机原理(测试计量技术与仪器、信号与信息处理专业)2005 微机原理及应用(电力电子)(电力电子与电力传动专业)2000 微机原理及应用(电力电子与电力传动专业)2001,2003 微机原理及应用(机电、机设、机制专业)(8086CPU)2002——2003 微机原理与接口(测试计量技术与仪器专业)2002——2003 电子技术2000——2003,2005——2006,2008 数字电子技术2003 自控原理2001——2003,2008——2009 数据库2000——2003 计算机学院数据结构1997——1999,2002——2006 计算机组成原理1998——2003 C语言(通讯与信息系统、信号与信息处理专业)2007 C语言(通信与信息处理、信号与信息处理专业)2008——2009 C语言程序设计(机械制造及其自动化、机械电子工程、机械设计及理论、信号与信息处理专业)2005——2006 C语言程序设计(机)(机制、机械电子工程、机械设计及理论专业)2003 C语言程序设计(机)(机械电子工程、机械设计及理论专业)2002 C语言程序设计(机械电子工程专业)2000——2001 C语言程序设计(计算机应用技术专业)2001 C语言程序设计(计)(计算机应用技术专业)2002 C语言与数据结构(计算机应用技术专业)2000 轻工化工学院化工原理2000——2002 有机化学2000——2003,2008 无机化学2002,2005 页)(注: 2005年共5页,缺第3、4页)物理化学2000——2003,2005——2006(注:环境科学与工程学院有机化学2000——2003,2008 页)(注: 2005年共5页,缺第3、4页)物理化学2000——2003,2005——2006(注:水污染控制工程2000——2003 环境化学2005 经济管理学院管理学2002——2003 数据库2000——2003 运筹学2000——2003 经济学2000——2003 建设学院结构力学2002——2003 材料力学2001——2003,2005 土力学2002——2003 测量学2005 物理与光电工程学院普通化学2002——2003 大学物理2002——2003 电子技术2000——2003,2005——2006,2008 应用数学学院艺术学院数学分析2000——2003 艺术学院艺术设计基础理论2009 。
广东工业大学试卷用纸,共 页,第 页学 院: 专 业: 学 号: 姓 名:装 订 线广东工业大学试卷用纸,共 页,第 页5 面积为S 的空气平行板电容器,极板上分别带电量±q ,若不考虑边缘效应,则两极板间的相互作用力为(A)Sq 02ε. (B) S q 022ε.(C) 2022S q ε. (D) 202S q ε. [ ]6 两个薄金属同心球壳,半径各为R 1和R 2 (R 2 > R 1),分别带有电荷q 1和q 2,二者电势分别为U 1和U 2 (设无穷远处为电势零点),现用导线将二球壳联起来,则它们的电势为(A) U 1. (B) U 2.(C) U 1 + U 2. (D) (U 1 + U 2) / 2. [ ]7 四条皆垂直于纸面的载流细长直导线,每条中的电流皆为I . 这四条导线被纸面截得的断面,如图所示,它们组成了边长为2a的正方形的四个角顶,每条导线中的电流流向亦如图所示.则在图中正方形中心点O 的磁感强度的大小为 (A) I a B π=02μ. (B) I aB 2π=02μ. (C) B = 0. (D) I aB π=0μ. [ ]8 对于单匝线圈取自感系数的定义式为L =Φ /I .当线圈的几何形状、大小及周围磁介质分布不变,且无铁磁性物质时,若线圈中的电流强度变小,则线圈的自感系数L (A) 变大,与电流成反比关系. (B) 变小. (C) 不变.(D) 变大,但与电流不成反比关系. [ ]9 在圆柱形空间内有一磁感强度为B 的均匀磁场,如图所示.B的大小以速率d B /d t 变化.在磁场中有A 、B 两点,其间可放直导线AB 和弯曲的导线AB ,则(A) 电动势只在AB 导线中产生. (B) 电动势只在AB 导线中产生. (C) 电动势在AB 和AB 中都产生,且两者大小相等.(D) AB 导线中的电动势小于AB 导线中的电动势. [ ]10 在康普顿效应实验中,若散射光波长是入射光波长的1.2倍,则散射光光子能量ε与反冲电子动能E K 之比ε / E K 为(A) 2. (B) 3. (C) 4. (D) 5. [ ]I Ia广东工业大学试卷用纸,共 页,第 页11 以下一些材料的逸出功为铍3.9 eV 钯5.0eV 铯1.9 eV 钨4.5 eV今要制造能在可见光(频率范围为3.9×1014 Hz —7.5×1014 Hz)下工作的光电管,在这些材料中应选(A) 钨. (B) 钯. (C) 铯. (D) 铍. [ ]二. 填空题:(共37分)12图示的曲线分别表示了氢气和氦气在同一温度下的分子速率的分布情况.由图可知,氦气分子的最概然速率为_________,氢气分子的最概然速率为__________.13 一热机从温度为 727℃的高温热源吸热,向温度为 527℃的低温热源放热.若热机在最大效率下工作,且每一循环吸热2000 J ,则此热机每一循环作功_________ J .14在静电场中,任意作一闭合曲面,通过该闭合曲面的电场强度通量⎰∙S Ed 的值仅取决于 ,而与 无关.15 一平行板电容器充电后切断电源,若使二极板间距离增加,则二极板间场强_________________,电容____________________. (填增大或减小或不变) 16 有一同轴电缆,其尺寸如图所示,它的内外两导体中的电流均为I ,且在横截面上均匀分布,但二者电流的流向正相反,则 (1) 在r < R 1处磁感强度大小为________________. (2) 在r > R 3处磁感强度大小为________________. 17 若电子在垂直于磁场的平面内运动,均匀磁场作用于电子上的力为F ,轨道的曲率半径为R ,则磁感强度的大小应为______________________.18 载流平面线圈在均匀磁场中所受的力矩大小与线圈所围面积________;在面积一定时,与线圈的形状_______;与线圈相对于磁场的方向_______.(填: 有关、无关)(m/s)f (v )广东工业大学试卷用纸,共 页,第 页19 线圈中通过的电流I 随时间t 变化的曲线如图所示.试定性画出自感电动势εL 随时间变化的曲线.(以I 的正向作为ε的正向)20一个中空的螺绕环上每厘米绕有20匝导线,当通以电流I =3 A 时,环中磁场能量密度w =____________ .(μ 0 =4π×10-7 N/A 2)21 光子波长为λ,则其能量=_________;动量的大小 =__________;质量=_________ .三.计算题:(共25分)22 一定量的理想气体,从A 态出发,经p -V 图中所示的过程到达B 态,试求在这过程中,该气体吸收的热量.23 电荷以相同的面密度σ 分布在半径为r 1=10 cm 和r 2=20 cm的两个同心球面上.设无限远处电势为零,球心处的电势为U 0=300 V .(1) 求电荷面密度σ.(2) 若要使球心处的电势也为零,外球面上应放掉多少电荷? [ε0=8.85×10-12 C 2 /(N ·m 2)]24 如图所示,有一根长直导线,载有直流电流I ,近旁有一个两条对边与它平行并与它共面的矩形线圈,以匀速度v沿垂直于导线的方向离开导线.设t =0时,线圈位于图示位置,求(1) 在任意时刻t 通过矩形线圈的磁通量Φ.(2) 在图示位置时矩形线圈中的电动势.25 当电子的德布罗意波长与可见光波长( λ =5500 Å)相同时,求它的动能是多少电子伏特? (电子质量m e =9.11×10-31 kg ,普朗克常量h =6.63×10-34 J ·s, 1 eV =1.60×10-19 J)四.错误改正题:(共5分)26 摩尔数相同的氦气和氮气(视为理想气体),从相同的初状态(即p 、V 、T 相同)开始作等压膨胀到同一末状态.下列有关说法有无错误?如有错误请改正. 1.对外所作的功相同; 2.从外界吸收的热量相同;3.气体分子平均速率的增量相同.I tLtO53)I。