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1 总体评价 2008年广东高考物理试题(以下简称"2008广东试题")考查针对性强、内容布局新颖、题型设计务实、区分度明显,从命题思想、试题设计、内容取材、题序布局,到落实对考试大纲中所要求的五种能力考查要求等方面,都能巧妙地加以整合;命题进一步体现了"符合选拔性考试的规律和要求,体现普通高中新课程理念,反映物理课程标准的整体要求. 相似文献
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1理综物理试题的总体评价 2006年理科综合试卷物理部分与2005年相比,试题总体难度略有下降.其中选择题和计算题难度有所下降,实验题难度基本持平.试题总体特点是稳中有变.保持较稳定的方面有:(1)试卷形式保持稳定,选择题仍为不定项选择,选择题量仍为8个题,每题分值为6分,主观性试题的题量仍为4道题,分值为72分,物理学科总分数为120分,占理综分值的40%.(2)考试内容保持稳定,试题能按照《考试大纲》的要求设计,考查的知识较全面,强化对考生基础知识、基本能力的考查,体现了近几年高考理科综合能力测试“以能力测试为主导,考查考生所学相关课程的基础知识、基本技能的掌握程度和综合运用所学知识分析、解决问题的能力”这一命题指导思想.(3)试题的变化,计算题题干表述更精炼更新颖. 相似文献
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2003年是全国高考实施理科综合能力测试的第4年,考试结束后,在全社会引起了强烈反响.总体来说,考生及其家长对2003年理科综合能力测试还是比较肯定的,认为它继续坚持了新一轮高考改革的方向,保持了近年来高考改革的特点,注重基础知识,突出创新精神和实践能力的考查.但是,多数考生反映试题偏难,甚至有的物理教师抱怨物理试题超出考试说明的要求.2003年物理试题与往年相比,难度确实稍有增加,但不能认为超出考试大纲的要求,它更加注重思维能力的考查.如果考生对基本概念和规律理解不透、基本物理思维方法训练不够,就很难取得好成绩.2003年的物理试题主要体现了以下几个特点:立足基础,重视基本知识考查和物理学科内知识的综合;内容新颖,重视方法和能力的考查;联系实际,重视物理与生活的联系. 相似文献
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1总体情况 2003年高考理综物理试题与2002年相比,在试卷的形式上有了较大的变化,主要体现在以下两个方面:(1)卷Ⅱ试题布局顺序作了大调整.物理题放在最前面,生物和化学题放在中间,压轴题仍为物理题,这种调整,使物理试题的难度较以往理综考试有明显下降;(2)试题的题量和赋分值也发生了较大的变化.卷Ⅰ选择题由6题增至8题,分值由36分增至48分,占40%;卷Ⅱ物理4题,题量不变,每题分值较2002年相对减少,共72分,占60%,这样调整后,从考生答题的问卷反馈来看,学生物理部分的平均得分率提高了.从试题难度上看,今年的理综物理试题与去年相比保持稳定,难、中、易试题的比例基本体现了"3∶5∶2"的宗旨.从考题内容设计上看,试题严格按照2003年考试说明所规定的要求设计,内容贴近课本,考查的侧重面较合理,强化了对考生基本概念、规律和基本能力的考查,较好地贯彻了近几年来高考改革中所强调的"突出基础,侧重能力"的命题指导思想,对中学物理教学有积极的导向作用. 相似文献
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2008年全国高考上海物理题是一份稳中求变,推陈出新,着重能力考查的好试题,试题落实"着重对考生进行能力考查"的主导思想,旨在考查学生对基础知识、基本技能的掌握程度和灵活应用所学物理知识分析、探究、解决具体问题的能力;很好地贯彻了考查知识的同时,注重考查能力,试题略偏难.考查的知识涵盖力学、热学、分子物理学、电磁学、原子物理五大扳块,重点突出主干知识. 相似文献
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1总体印象2006年全国高考理科综合测试卷Ⅱ物理试题,在借鉴和继承了2005年高考命题的成功经验基础上,考虑到有利于各个省顺利进行高中课程改革,命题体现出“稳中求变、稳中求新、平稳过渡、体现课改”的特点.试题坚持了“有利于高校选拔有学习潜能的新生,有利于中学推进素质教育,有利于扩大高校办学自主权”的命题原则,体现了“以能力测试为主导,考查考生对所学相关课程基础知识、基本技能的掌握程度和综合运用所学知识分析、解决问题的能力”的命题指导思想.试题重视对考生科学素养的考查,关注科学技术和社会经济的发展,有利于激发考生学习科学的兴趣,形成科学的价值观和实事求是的科学态度.是一份适合中学物理教学实际,对今后高中物理教学有良好导向作用,有利于与新课程标准与实际教学有机衔接的试题. 相似文献
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1 引言 高考北京卷物理自主命题五年以来,在命题思路、考查方式、能力立意、试题难度和试题呈现方式等多方面保持稳定的前提下,结合新课程改革进行了有益的探索.在试题内容上渗透了新课程理念,适当体现了探究和创新能力的考查,既体现出高考作为选拔性考试和高考改革的要求,又能发挥引领中学教学发展方向的作用.2010年北京市将实施新课标下的第一次高考;在此背景下,近几年的物理高考试题更加注重体现新课程的理念,更加关注学生的科学素养,更加突出对学生能力要求的考查,对中学教学体现了良好的导向性. 相似文献
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2008年是重庆市高考理科综合测试自主命题的第三年了,普遍认为物理试题的编制已经趋向成熟,比较符合国家考试中心规定的"三个有利于"的命题原则;能紧扣对五种能力的全面考查,体现了"以能力测试为主导"的命题思想;试题设计重视考查学生的科学素养,注重引导学生关注科学、技术、社会(STS)三者之间的联系. 相似文献
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讨论了银道面内的引力场强分布和太阳在银河系中所受引力与到银心距离r的关系,指出引力场强g并不是与r的平方成反比,这是由于银河系的大小和形状不能忽略造成的.强调了万有引力定律的适用条件. 相似文献
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R. A. Vadov 《Acoustical Physics》2005,51(3):265-270
The disagreement between the experimental and calculated positions of the first convergence zone are known from many publications. The most probable cause for such a disagreement, namely, the incorrect specification of the input data for the calculations, is considered. The lack of simultaneity between the hydrological surveys of the region and the acoustic experiments is emphasized. The experimental data obtained by the author in five ocean regions are presented. These data characterize the diurnal variability of the distance from the source to the nearest boundary of the convergence zone. The relations proposed by different researchers for calculating the sound speed from the temperature, salinity, and hydrostatic pressure are analyzed. It is shown that these relations lead to a substantial difference in the estimated depth dependence of the hydrostatic gradient of the sound speed. The position of the first convergence zone is calculated for the propagation conditions determined by vertical temperature and salinity profiles with the subsequent recalculation of these profiles into sound speed profiles by using eight different formulas known from the literature. It is shown that different formulas lead to different values of the distance to the first zone; this difference is substantially greater than that between the calculations and experiment. The necessity of improving the recalculation relations in view of the experimental data on sound propagation in natural oceanic waveguides, including the data on the actual positions of the convergence zones, is emphasized. 相似文献
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J. Šlechta 《Czechoslovak Journal of Physics》1968,18(10):1299-1308
On the basis of the classical theory of radiation produced in incomplete Coulomb interaction, a formula is derived for the coefficient of the bremsstrahlung of fully ionized plasma. In the region of rectilinear approximation a comparison is made with the results of the quantum formula derived from the Born approximation. Furthermore, the influence of dispersion upon the emission coefficient is taken into account; some relations for the region of dispersion are given. 相似文献
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The investigation was made of the dependence of the intensity of Tl, Ga, Mo, Mg, Mn, Sn, Bi, Ni, Zn, Pt and Au spectral lines and the plasma parameters (temperature T, electron concentration ne, degree of 6 ionnization α) from concentration of lithium additive. 相似文献
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We consider associated production of squarks and gluinos with the lightest supersymmetric particle (LSP), or states nearly degenerate in mass with it. Though sub-dominant to pair production of color SU(3)-charged superpartners, these processes are directly sensitive to the wavefunction composition of the lightest neutralinos. Exploiting event-shape variables - including some introduced here for the first time - we are able to identify the composition of the LSP by selecting events involving a single high-pT jet recoiling against missing transverse energy. We illustrate the proposed technique on a set of benchmark cases and propose methods for applying these results in more realistic experimental environments. 相似文献
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SJ Rose 《Contemporary Physics》2013,54(2):109-121
In this paper we describe experiments conducted with high-power lasers that are attempting to replicate, for a very short time and in miniature, conditions found in the Sun. Experiments to date have reached conditions in the outer part of the Sun. To reach the Sun's centre requires compression of material to very much greater than solid density and heating to over ten million degrees. To achieve this, a new class of experiments and a new generation of high-power lasers are required. 相似文献
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Technical Physics - The object of this work is the apokamp—a new type of plasma jet, which is formed from a bright offshoot emerging at the bending point of a channel of a high-voltage... 相似文献