创设情境教学，优化物理课堂

在物理课堂上,创设情境教学是激发学生学习物理兴趣,调动学生学习物理积极性,培养学生创新意识和思维能力,优化物理课堂效果的重要途径之一。本文拟在物理教学实践中,对如何在物理课堂上创设教学情境,激发学生兴趣,优化物理课堂效率做了一些尝试。     

激发学生兴趣 提高教学质量

卫校的物理课是一门基础课．学生普遍不重视物理；认为物理难学．这些问题的存在无疑对物理教学是个障碍．物理学家爱因斯坦说过：“兴趣是最好的老师”．因此，要提高物理教学质量，必须从培养学生学习物理兴趣入手．下面结合自己的教学实践谈几点看法．１用生动事例、形...     

提高学生对大学物理的学习兴趣

大学物理教学的目的就是要使学生获得科学知识,掌握科学方法,培养学生动手能力及创新能力,而大学物理教学过程中,许多学生反映物理太难学了,分析其原因是没有掌握正确的物理学习方法,不习惯物理的思维方式,更重要的是对物理学习缺乏兴趣．因此要学好大学物理这门基础课程,提高学生的学习兴趣是大学物理教学环节中一个关键问题．     

浅谈中学物理课堂教学的引入方法

怎样才能使中学生头脑里植入完整的物理思维意识,从而提高学生对物理课的兴趣,进一步提高学生对科学的追求与向往,课堂教学的引入在这里是非常重要的。新课教学引入的成功,能够在最短时间内提升学生的听课兴趣,迅速让学生了解教学的目的,从而提高学生强烈的求知、思考、探索的欲望。     

课堂提问巧用心思走出“尴尬”

为了增加专业课的课时，高职护理专业物理课被大幅削减，而学生基础薄弱，对物理缺乏兴趣，致使物理课常常很“尴尬”．作为物理教师必须积极思考，不断探索，努力建构有活力、有效率的课堂教学来有效化解这种尴尬．高质量的课堂教学有许多要素，其中课堂提问是最普遍的环节，也是提高教学质量的有效途径．本文就课改下高职护理专业物理教学中的课堂提问环节，谈谈自己的体会和思考．     

"黑箱"教学中激发学生兴趣的尝试

物理教学中有不少“黑箱”习题,可用于培养发散思维、推理、灵活运用知识的能力．一些学生对“黑箱”问题感到困惑、害怕．怎样在“黑箱”教学中激发学生学习兴趣呢？以下是笔者一节“黑箱”习题课的教学片段．     

生活化教学理念在初中物理教学中的渗透策略

初中物理作为自然科学的重要分支之一，其教学内容的生动性和可操作性对于学生的学习成效具有至关重要的影响。因此，在初中物理教学中运用生活化教学理念，不仅可以帮助学生更好地理解物理概念，提高物理实验操作技能，而且可以激发学生学习兴趣和主动性。本文将探讨生活化教学理念在初中物理教学中的应用现状，并提出相应的渗透策略，旨在为初中物理教学提供新的思路和方法。     

创设情境在物理“探案式”教学中的运用

在初中物理探究式教学中，利用课本中的实验、故事、插图、习题，在物理教学中创设情境，激发学生的好奇心理和学习兴趣，有利于培养学生的创新精神和动手能力，达到提高物理教学质量的目的。     

教学的几点探索

本文就中专物理教学，结合笔者的长期教学实践，浅议“寓教于乐，理道结合”这一愉快教学法．１激发兴趣，启发思维在物理教学中教师要密切结合物理教学的特点，激发学生的学习兴趣，调动他们的主观能动性．如在讲解运动的相对性时先引入日常事例，太阳从东升，月亮钻云层...     

几个奇妙趣味现象的演示

物理演示实验是物理课教学的一个重要环节，也是每一个物理教师的良好助手，它有利于学生掌握课程的基本内容，也有助于培养学生探索自然规律的兴趣和能力，从而引导学生透过物理现象，去追求新的规律，获得新的知识。因此，国内外的物理教学都把演示实验作为教学的组成部分．     

关于"太阳在银河系中所受引力与到银心距离r的关系"的讨论

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．     

On the calculation of the bremsstrahlung in the region of the plasma frequency

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.     

Dependence of the Intensity of the Spectral Lines and the Composition of the Sample and the Plasma Parameters of the Unipolar Arc

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 n_e, degree of 6 ionnization α) from concentration of lithium additive.     

On the predictability of the positions of the convergence zones in the ocean

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.     

Extracting the wavefunction of the LSP at the LHC

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.     

Set the controls for the heart of the Sun

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.     

On the Question of the Source of the Apokamp

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...