NTNUJAVA Virtual Physics Laboratory
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Easy Java Simulations (2001- ) => Collaborative Community of EJS => Topic started by: lookang on August 29, 2013, 02:15:04 pm



Title: Ejs Open Source Refraction Wave Model across 2 straight media java applet
Post by: lookang on August 29, 2013, 02:15:04 pm
Ejs Open Source Refraction Wave Model across 2 straight media java applet
author fu-kwun hwang, remixed by lookang
from here http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=152.0

for learning objectives
State that waves can change direction as they cross straight boundaries between media and that this is called refraction
Explain that refraction is caused by a change of speed in the media and use rules to predict which way the ray bends when density changes


there is another good simulation here
http://phet.colorado.edu/en/simulation/bending-light

enjoy!


Title: Re: Ejs Open Source Refraction Wave Model across 2 straight media java applet
Post by: lookang on August 29, 2013, 02:23:14 pm
changes made include:

re-layout according my usual design
added second set of arrows (yellow) and dynamic text v = XXX c as it enters the medium 2
made medium 1 white
made drag-gable point green and remove associated slider for simpler control-layout
added hint that shows h2/h1 as the ratio of n2/n1

enjoy!