scholarly journals Scientifically Grounded Determination of Physics Course Content for Technical Universities

2019 ◽  
Author(s):  
A.F. An
Keyword(s):  
Course Content ◽  
Physics Course

scholarly journals OPTIMIZATION OF A VIBRATING SAMPLE MAGNETOMETER FOR A LABORATORY PHYSICS COURSE

2017 ◽  
Vol 26 (2) ◽  
pp. 27 ◽  
Author(s):  
Félix L. Avilés ◽  
Elmer Monteblanco ◽  
Abel Gutarra
Keyword(s):  
Condensed Matter ◽  
Oscillation Amplitude ◽  
Real Problem ◽  
Vibrating Sample Magnetometer ◽  
Induced Voltage ◽  
Frequency Oscillation ◽  
Palabras Clave ◽  
The One ◽  
Physics Course

ABSTRACTThis paper describes the implementation and a detailed optimization of a Vibrating Sample Magnetometer (VSM) for an undergraduate physics course laboratory. The VSM operation parameters were extensively discussed using Foner and Mallison coils configuration. The influence of the involved parameters (e.g. oscillation frequency, oscillation amplitude, rate change of the external magnetic field, coils configuration, etc.) on the induced voltage in the pick-up coils were discussed. A disk of nickel of 6-mm diameter was used for the calibration of the magnetometer, comparing the hysteresis loop measured with our magnetometer with the one obtained using a commercial VSM. Magnetization curves of two different samples were obtained in order to test the sensitivity of the magnetometer. The vibrating sample magnetometer implemented in the present work is able to detect changes in the total magnetic moment down to 10-3 emu. The detailed optimization of the VSM described in the present work is an example of how to solve a real problem in condensed matter, related to the determination of the magnetization value of a magnetic sample. Keywords.- : Vibrating sample magnetometer, Magnetometry, Instrumentation. RESUMEN Este artículo describe la implementación y una optimización detallada de un magnetómetro de muestra vibrante (VSM) para un laboratorio de licenciatura en física. Los parámetros de operación de VSM se discutieron ampliamente usando la configuración de bobinas de Foner y Mallison. Se discutió la influencia de los parámetros implicados (por ejemplo, frecuencia de oscilación, amplitud de oscilación, cambio de velocidad del campo magnético externo, configuración de bobinas, etc.) sobre la tensión inducida en las bobinas de captación. Se utilizó un disco de níquel de 6 mm de diámetro para la calibración del magnetómetro, comparando el bucle de histéresis medido con nuestro magnetómetro con el obtenido utilizando un VSM comercial. Se obtuvieron curvas de magnetización de dos muestras diferentes para probar la sensibilidad del magnetómetro. El magnetómetro de muestra vibrante implementado en el presente trabajo es capaz de detectar cambios en el momento magnético total hasta 10-3 emu. La optimización detallada del VSM descrita en el presente trabajo es un ejemplo de cómo resolver un problema real en materia condensada, relacionado con la determinación del valor de magnetización de una muestra magnética. Palabras clave.-Magnetómetro de muestra vibrante, Magnetometría, Instrumentación,

scholarly journals IMPORTANT ISSUES OF THE CONTENT OF THE PHYSICS COURSE IN THE TRAINING OF FUTURE TECHNICAL SPECIALISTS IN HIGHER EDUCATIONAL INSTITUTIONS

2021 ◽  
Vol 58 (3) ◽  
pp. 194-200
Author(s):  
A.K. Kozibay ◽  
◽  
G.I. Zhanbekova ◽  
Keyword(s):  
Scientific Knowledge ◽  
Technical Education ◽  
Logical Structure ◽  
Complex Nature ◽  
Course Content ◽  
Work Program ◽  
Physical Picture ◽  
The World ◽  
Traditional Work ◽  
Physics Course

The article presents new content areas in the traditional work program for the course of physics in the preparation of technical specialties in universities. The majority of physical education in the system of technical education and the systemic role of the physics course in the structure of technical training are noted. A number of problems and vulnerabilities in the practice of teaching physics were analyzed. The necessity of preserving the integrity of the logical structure of the physics course in the system of technical education, regardless of the direction of training, is noted. The article substantiates the inclusion of a complex of methodological knowledge in the traditional work program in physics, which forms ideas about the complex nature of the physical picture of the world. The structure of this complex is proposed. It is shown that the structure of the physical picture of the world can be represented in the form of two interrelated blocks: the scientific paradigm and scientific knowledge. The multi-level content of each block is revealed, corresponding to the logic of the development of scientific knowledge. A comparative analysis of the proposed approach to the formation of the course content is carried out. The article develops the structure and defines the content of the methodological educational complex of physical science, proposed for inclusion in the content of the physics course for the specialties of the technical bachelor's degree.

scholarly journals Teaching Physics for Computer Science Students in Higher Education During the COVID-19 Pandemic: A Fully Internet-Supported Course

2021 ◽  
Vol 13 (2) ◽  
pp. 35
Author(s):  
Francisco Delgado
Keyword(s):  
Higher Education ◽  
Computer Science ◽  
Statistical Tests ◽  
Digital Learning ◽  
Science Students ◽  
Course Content ◽  
Digital Strategy ◽  
Face To Face Learning ◽  
Physics Course ◽  
Digital Delivery

The COVID-19 pandemic has modified and diversified the ways that students receive education. During confinements, complex courses integrating previous knowledge must be carefully designed and implemented to effectively replace the elements present in face-to-face learning to improve the students’ experience. This work assesses the implementation of a digital-learning physics course for computer science students in a skill-based education program in higher education. The assessment was useful for the institution to evaluate if the digital strategy implemented in the course fulfilled the original premises and objectives. The analyses performed provide useful knowledge of theoretical and operational actions applied in this methodology that could be adapted to similar courses for the younger generations in this university. COVID-19 confinement will continue in Mexico in 2021. This assessment resulted in a positive evaluation of the digital strategy being followed, which can be continued while the contingency lasts. Three teachers came together to design math, physics, and computational sciences content for various sections of a physics course. The analysis was developed and implemented according to an institutional digital delivery model for the COVID-19 pandemic. Elements related to attendance, digital access, performance distribution by gender, activity types, and the course learning sections were considered. The analysis was performed with some techniques found in the literature for small groups, complemented when necessary by standard statistical tests to discern meaningful trends. A primary goal was to assess skill-based learning in the course delivered digitally due to the COVID-19 confinement. Furthermore, additional issues concerning the learning dynamics were searched, reported, and analyzed. Finally, the outcomes of an institutional exit survey collecting students’ opinions supported certain observed behaviors. The analysis produced meaningful evidence that the course’s skill-based development was well supported by the digital delivery during the confinement. Furthermore, differences in the students’ performances in the various course content sections proved statistically significant and are discussed in this work.

scholarly journals Determination of learning styles and achievements of talented students in the fields of science and mathematics

2019 ◽  
Vol 14 (1) ◽  
pp. 80-89 ◽  
Author(s):  
Hasan Altun ◽  
Oguz Serin
Keyword(s):  
Learning Styles ◽  
Learning Style ◽  
Screening Method ◽  
The Other ◽  
And Mathematics ◽  
Ninth Grade Students ◽  
Talented Students ◽  
Physics Course ◽  
Mathematics And Science

The purpose of this study is to determine the distribution of talented students’ course achievements in the fields of mathematics and science, according to the learning styles. General screening method was used in this research. The universe of the research consists of Ninth grade students (2016–2017) who study at Bornova Anatolian High School. The sample of the study was composed of 11 talented students. After determining learning styles, the distribution of the students according to the learning styles was determined. At the end of the study, it was detected that mathematics course achievements’ average of the students who have assimilator learning style is higher than averages of the other students’s who have other learning styles. It was determined that physics course achievements’ average of the students who have assimilator learning style is higher than averages of the other students’s who have other learning styles. Keywords: Learning styles, talented students, science and mathematics.

Galactic orbits of stars

1966 ◽  
Vol 25 ◽  
pp. 93-97
Author(s):  
Richard Woolley
Keyword(s):  
Globular Cluster ◽  
Potential Field ◽  
High Velocity ◽  
Velocity Vector ◽  
Variable Stars ◽  
The Sun ◽  
Proper Motions ◽  
Rr Lyrae ◽  
The Galaxy

It is now possible to determine proper motions of high-velocity objects in such a way as to obtain with some accuracy the velocity vector relevant to the Sun. If a potential field of the Galaxy is assumed, one can compute an actual orbit. A determination of the velocity of the globular clusterωCentauri has recently been completed at Greenwich, and it is found that the orbit is strongly retrograde in the Galaxy. Similar calculations may be made, though with less certainty, in the case of RR Lyrae variable stars.

Distance to SN 1987A and the LMC

1999 ◽  
Vol 190 ◽  
pp. 549-554
Author(s):  
Nino Panagia
Keyword(s):  
Angular Size ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Light Curves ◽  
Distance Modulus ◽  
Absolute Size ◽  
Sn 1987A

Using the new reductions of the IUE light curves by Sonneborn et al. (1997) and an extensive set of HST images of SN 1987A we have repeated and improved Panagia et al. (1991) analysis to obtain a better determination of the distance to the supernova. In this way we have derived an absolute size of the ringRabs= (6.23 ± 0.08) x 1017cm and an angular sizeR″ = 808 ± 17 mas, which give a distance to the supernovad(SN1987A) = 51.4 ± 1.2 kpc and a distance modulusm–M(SN1987A) = 18.55 ± 0.05. Allowing for a displacement of SN 1987A position relative to the LMC center, the distance to the barycenter of the Large Magellanic Cloud is also estimated to bed(LMC) = 52.0±1.3 kpc, which corresponds to a distance modulus ofm–M(LMC) = 18.58±0.05.

International determination of the total motion of the pole

1961 ◽  
Vol 13 ◽  
pp. 29-41
Author(s):  
Wm. Markowitz
Keyword(s):  
Secular Motion ◽  
The Future

A symposium on the future of the International Latitude Service (I. L. S.) is to be held in Helsinki in July 1960. My report for the symposium consists of two parts. Part I, denoded (Mk I) was published [1] earlier in 1960 under the title “Latitude and Longitude, and the Secular Motion of the Pole”. Part II is the present paper, denoded (Mk II).

Time and Latitude in South Africa

1972 ◽  
Vol 1 ◽  
pp. 27-38
Author(s):  
J. Hers
Keyword(s):  
South Africa ◽  
Cape Town ◽  
Astronomical Observations ◽  
Royal Observatory ◽  
The Republic ◽  
Astronomical Determination ◽  
Limited Accuracy ◽  
Better Than

In South Africa the modern outlook towards time may be said to have started in 1948. Both the two major observatories, The Royal Observatory in Cape Town and the Union Observatory (now known as the Republic Observatory) in Johannesburg had, of course, been involved in the astronomical determination of time almost from their inception, and the Johannesburg Observatory has been responsible for the official time of South Africa since 1908. However the pendulum clocks then in use could not be relied on to provide an accuracy better than about 1/10 second, which was of the same order as that of the astronomical observations. It is doubtful if much use was made of even this limited accuracy outside the two observatories, and although there may – occasionally have been a demand for more accurate time, it was certainly not voiced.

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