EJSS SHM vertical spring mass model for secondary school
based on models and ideas by- lookang http://weelookang.blogspot.sg/2014/02/ejss-shm-model-with-vs-x-and-v-vs-x.html
- lookang http://weelookang.blogspot.sg/2010/06/ejs-open-source-simple-harmonic-motion.html?q=SHM
- lookang http://weelookang.blogspot.sg/2013/02/ejs-open-source-vertical-spring-mass.html?q=vertical+spring
- Wolfgang Christian and Francisco Esquembre http://www.opensourcephysics.org/items/detail.cfm?ID=13103
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| http://weelookang.blogspot.com/2014/08/ejss-shm-vertical-spring-mass-model-for.html EJSS SHM vertical spring mass model for secondary school with equilibrium as y=0 https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejss_model_SHMxvaverticalsensorsecondary/SHMxvaverticalsensorsecondary_Simulation.xhtml source: https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejss_src_SHMxvaverticalsensorsecondary.zip author: lookang author of EJSS 5.0 Francisco Esquembre |
Changes made:
based on feedback by thong.- mass is a circle drawn in pixel to be always the same area drawn
- mass is $ m = \rho \frac{4 \pi r^{3}}{3} $
- added 3 runs
- added amplitude (y)/m and Time (t)/s
- added auto y as mass increases during equilibrium
- added natural length, Lnatural as variable that does not affect period T
- added Diameter of spring, as variable that does not affect period T
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