Wave function modelling of a pendulum-spring system exhibiting simple harmonic motion

2015 ◽  
Vol 51 (1) ◽  
pp. 015016
Author(s):  
John Ostrander
2020 ◽  
Vol 17 (35) ◽  
pp. 55-64
Author(s):  
Dewanta Arya NUGRAHA ◽  
C. CARI ◽  
A. SUPARMI ◽  
Widha SUNARNO

Simple Harmonic Motion (SHM) is one of a primary physics topic that underlies other concepts and is closely related to everyday life and technology. It is used to understand the phenomena of mechanical motion, sound, light, and quantum theory, in particular, harmonic oscillators. This study aimed at investigating students conceptual understanding of simple harmonic motion on the mass-spring system. Data collection was made using tests and interviews. The research subjects consisted of 49 students at a university in Jakarta. The instruments used were multiple-choice tasks. The results of the investigation showed that most students have not been able to name the basic concepts of simple harmonic motion, determine the magnitude of the acceleration of objects due to oscillation, and find the scope of the oscillation period. The results show that the average achievement of students is less than 50%. Lack of understanding of student conception is caused by students not being able to relate previous insights (such as Newtons law and Hookes Law) with strategies for solving problems.


1969 ◽  
Vol 7 (7) ◽  
pp. 395-396
Author(s):  
Thomas B. Greenslade

1949 ◽  
Vol 39 (3) ◽  
pp. 205-218
Author(s):  
S. K. Chakrabarty

Summary The equation of motion of the seismometer and the galvanometer in an electromagnetic seismograph has been derived in the most general form taking into consideration all the forces acting on the system except that produced by hysteresis. A general solution has been derived assuming that the earth or the seismometer frame is subjected to a sustained simple harmonic motion, and expressions for both the transient and the steady term in the solution have been given. The results for the particular case when the seismograph satisfies the Galitzin conditions can easily be deduced from the results given in the present paper. The results can now be used to study the response characteristics of all electromagnetic seismographs, whether they satisfy the Galitzin conditions or not, and will thus give an accurate theoretical picture of the response also of seismographs used for the study of “local earthquakes” and “microseisms” which do not in general obey the Galitzin conditions. The results obtained can also be used to get analytically the response of the seismographs for different types of earth motion from the very beginning, and not only after the transient term has disappeared. The theory of the response to simple tests used to determine the dynamic magnification of any seismograph and also to determine and check regularly the instrumental constants of the seismographs has been worked out. The results obtained can also be used for ascertaining the proper values of the instrumental constants suitable for the various purposes for which the seismographs are to be used.


2019 ◽  
pp. 262-268
Author(s):  
John Bird ◽  
Carl Ross

2014 ◽  
Vol 52 (3) ◽  
pp. 157-159 ◽  
Author(s):  
Calin Galeriu ◽  
Scott Edwards ◽  
Geoffrey Esper

Sign in / Sign up

Export Citation Format

Share Document