高考物理实验三要求——操作、设计、评价

《理科综合考试说明》对理科的实验能力考查有3点要求：会操作，会设计，会评价．下面举例分析．     

新高考新认识新实践——谈高考理科综合能力测试

2001年,我市高考理科喜获佳绩,荣获省理科状元,4人进入省前十名,600分以上的高分人数达232人.这对人口仅有75万的县级市来讲,成绩确实较为理想.就学科成绩而言,全市理科综合平均分为220分,大大高出全省平均分.     

高考实验题典型错解分析对 物理实验教学及新高考的启示

针对2 0 1 6年高考理综全国卷( Ⅰ)实验题2 2和2 3题河北省考生的作答情况, 给出了正解, 分析了考生 出现的典型错误. 考生出现的典型错误有: 不理解物理公式的含义; 不能灵活运用理论知识解决问题; 不理解题意和 实验原理; 不能正确使用常用的实验仪器; 数学计算错误; 物理语言概括表述有误等. 针对考生的错解情况, 提出改 革物理实验教学的建议     

高考电学实验创新能力考查剖析

<考试说明>中对实验能力的表述为:能在理解的基础上独立完成"知识内容表"中所列的实验,明确实验目的,理解和控制实验条件;会用在这些实验中学过的实验方法;会正确使用在这些实验中用过的仪器;会观察、分析实验现象;会处理实验数据,并得出结论.     

谈高考物理实验的复习

物理是一门以实验为基础的科学。实验教学在中学物理教学中占着非常重要的地位。《中学物理教学大纲》要求在教学中培养学生的三个物理能力就把观察、实验能力放在首位。因此,在高考物理复习中,应把实验的复习放在相应重要的位置上。如何才能有效地搞好实验复习呢?依我之见,一是要弄清高考对实验考查的要求,二是采取正     

高考物理实验命题引领实验教学

高考物理实验题是近几年一直热门的,把握实验题的考查方向是高考物理得高分的利器.本文主要是从课堂实验教学中所设计的几种实验来阐述课堂实验教学对高考物理实验题的影响.     

新高考改革背景下大学与中学物理实验有效衔接的研究

分析了在新高考背景下大学物理实验与中学物理实验衔接存在问题的原因,结合调查情况,提出了二者之间在沟通交流、课程设置、教学内容及教学方法方面的改革措施,实现大学与中学物理实验的有效衔接。     

高考总复习中的物理实验

 物理实验的复习,一方面要着重于基本仪器、器件的结构、使用和操作规则,另一方面也要着重于一些实验的原理、仪器选配及合理的实验步骤的编排.高中教材里所列的分组实验约二十个左右,还有一些供学生课外研究的小实验.完成这些实验要用到一些仪器和器件.在中学阶段,这些基本的仪器和器件共约二十样.为各个实验所共用.因此,作为一个复习方法,学生可以自己命题.用一些给定的仪器器件,连续地完成数个实验.     

高考物理实验试题结构特点分析

针对近11年高考物理实验能力考查现状,分析了实验试题的结构特点,得出了高考物理实验对学生实验能力考查的规律,并指出了学生在应试过程中出现的问题,对以后中学物理实验教学及培养学生的实验能力的实践提供依据.     

高考物理实验试题设计趋势分析

对近年各地区高考物理实验试题命题改革趋势进行了分析,以具体类型题为例,对2007年高考物理实验试题设计趋势作以预测.     

原子核中新的有效相互作用、新对称性及奇特核态

总结了近年来对奇特核和极端条件下核物质的研究结果,包括原子核的新有效相互作用、新对称性及奇特性质.在相对论平均场理论中,发现了反核子谱中的自旋对称性,提出了包含微观质心修正的新相互作用PK1,PK1r和PKDD?.这些新相互作用不但可以很好地描述核物质与中子星,还可以很好地给出靠近或远离β稳定线的原子核性质,包括中子滴线核与超核中的晕和巨晕现象.     

New nondestructive tests,from frames

The usefulness (Lubkin, 1976; Lubkin and Lubkin, 1979) ofB-plexes, an extension of Dirac's familiar observable (Dirac, 1947), is illustrated in a computation of all nondestructive tests over a system of finite ket-space dimensionn. These are tests whoseB outcomes are proportional to corresponding pure final states. The unitary motions of the system and aB-dimensional register, which effect such tests, depend very simply onn vectors from a frame inB-space. CaseB>n is not empty, and so presents nondestructive testing with nonorthogonal final states. The step where reduction of the wave packet happens, equivalently, computation of an Everett relative state, is given in an Appendix.     

Alpha Decay, Shell Structure, and New Elements

We systematically analyze the experimental data of alpha decay in even-even heavy nuclei far from stabilityand find that the Geiger-Nuttall law breaks for an isotopic chain when its neutron number is across a magic numberor there is a deformed subshell. This break can be used to identify new magic numbers of superheavy nuclei. It is alsodiscovered that there is a new linear relation between the logarithm of half-life and the reciprocal of the square root ofdecay energy for N = 126 and N = 152 isotones. It could be a new law of alpha decay for nuclei with magic neutronnumbers but the physics behind it is to be explored. The significance of these researches for the search of new elementsis discussed.     

Alpha Decay,Shell Structure,and New Elements

We systematically analyze the experimental data of alpha decay in even-even heavy nuclei far from stability and find that the Geiger-Nuttall law brea~s for an isotopic chain when its neutron number is across a marc number or there is a deformed subshell. This break can be used to identify new magic numbers of superheavy nuclei. It is also discovered that there is a new linear relation between the logarithm of half-life and the reciprocal of the square root of decay energy for N = 126 and N = 152 isotones. It could be a new law of alpha decay for nuclei with magic neutron numbers but the physics behind it is to be explored. The significance of these researches for the search of new elements is discussed.     

New,Spherical Solutions of Non-Relativistic,Dissipative Hydrodynamics

We present a new family of exact solutions of dissipative fireball hydrodynamics for arbitrary bulk and shear viscosities. The main property of these solutions is a spherically symmetric, Hubble flow field. The motivation of this paper is mostly academic: we apply non-relativistic kinematics for simplicity and clarity. In this limiting case, the theory is particularly clear: the non-relativistic Navier–Stokes equations describe the dissipation in a well-understood manner. From the asymptotic analysis of our new exact solutions of dissipative fireball hydrodynamics, we can draw a surprising conclusion: this new class of exact solutions of non-relativistic dissipative hydrodynamics is asymptotically perfect.     

New porphyrins: synthesis,characterization, and computational studies

Molecular Diversity - New trans-A2B2-porphyrins substituted at phenyl positions were synthesized from 4-methylphthalic acid as a starting material through sequential multistep reactions. These...     

Structure,Lasing Characteristics,and Photostability of New Heteroarylcoumarins

Optics and Spectroscopy - A series of 7-diethylaminocoumarins containing various bulky substituents in the form of heterocyclic radicals is investigated under conditions of nanosecond coherent...