lookang
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on: September 15, 2008, 02:21:01 pm » |
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 This applet can do almost anything, Projectile Motion with resistance coefficient drag of a projectile Open Source Creative Commons Attribute Ejs Projectile Java Applet by lookang inquiry learning environment. Best Projectile Applet by lookang best projectile applet best java projectile applet best physics projectile applet http://iwant2study.org/ospsg/index.php/interactive-resources/physics/02-newtonian-mechanics/01-kinematics/240-projectileyidea from & interactive physics & 8 years of interaction with students in Yishun Junior College (singapore) Date : May 2007 Embed a running copy of this simulation Embed a running copy link(show simulation in a popuped window) Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site listPress the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
- Please feel free to post your ideas about how to use the simulation for better teaching and learning.
- Post questions to be asked to help students to think, to explore.
- Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!
 
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« Last Edit: December 23, 2015, 01:35:33 pm by lookang »
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lookang
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Reply #1 on: September 15, 2008, 02:30:16 pm » |
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« Last Edit: September 20, 2011, 09:40:46 am by lookang »
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lookang
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Reply #2 on: November 05, 2008, 01:59:31 pm » posted from:SINGAPORE,SINGAPORE,SINGAPORE |
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source code download the *.jar for using the applet on standalone without internet connection.some known bugs, text field fail to load in jar some good features to have now need to key in velocity u and angle of launch alpha and once initialize, the applet remembers the values making it easier to explore and use the applet. bad thing is now the starting is 0 or blank or empty, so newbies will be wondering what is wrong. in 23 added event handlers to put the simulation back to when instant y = yground replaced all text field into label since the EJS 4.1 Jan 2009 version does not support display of text field redesigned with slider now instead of input field for better usability
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*** There are 4 more attached files. You need to login to acces it!
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« Last Edit: December 11, 2009, 03:44:02 pm by lookang »
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lookang
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Reply #3 on: September 22, 2009, 03:37:54 pm » posted from:Venice,Veneto,Italy |
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 A youtube video made to spread the news of learning by doing & exploring sense making physics. Music is audio swapped by Youtube in built service. cool Grin I am assuming Youtube asked for permission already to use the music for youtube users. I believe this is applicable to me. * * Tell me. I may not get it, I'm sure to forget it. * * Show me. I may get it, I'll remember it for a little while. * * Have me do it. I'll understand it, it may stick for awhile.
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« Last Edit: June 15, 2010, 08:13:51 am by lookang »
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lookang
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Reply #4 on: September 26, 2009, 02:18:58 am » posted from:Fiesso D\'artico,Veneto,Italy |
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 found http://www.compadre.org/OSP/items/detail.cfm?ID=7299&S=7Ejs Intro 2DMotionLab Model  written by Anne Cox, Wolfgang Christian, and Mario Belloni The Introductory Physics 2D (Projectile) Motion Lab program asks students to develop a model for a ball with projectile motion. It is distributed as a ready-to-run (compiled) Java archive. Double-clicking the ejs_intro_2DMotionLab.jar file will run the program if Java is installed. In order to modify this simulation (and see how it is designed), if you have Ejs installed, you can right-click within the simulation window and select Open Ejs Model from the pop-up menu. Information about Ejs (Easy Java Simulations) is available at: http://www.um.es/fem/Ejs/. This Ejs Intro 2DMotionLab Model simulation is a template for students to input their own equations to model the physics of Ejs Intro 2DMotionLab Model. I like it 2 http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=623.0Projectile motion with equations by Fu-Kwun Hwang Like! equations, input fields, autoscale codes for the view
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« Last Edit: April 12, 2010, 08:47:31 pm by lookang »
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lookang
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Reply #5 on: June 14, 2010, 04:36:29 pm » posted from:SINGAPORE,SINGAPORE,SINGAPORE |
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 This is my second applet that i made. 1. spent a lot of effort trying to get it to be the best inquiry learning environment for projectile motion 14 june 2010 2 remove the "" from the hints to remove the compilation error 3 made the width = 600 for the http://sgeducation.blogspot.com/2010/06/ejs-open-source-creative-commons.html
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ahmedelshfie
Ahmed
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Reply #6 on: June 14, 2010, 08:30:30 pm » posted from:SAO PAULO,SAO PAULO,BRAZIL |
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 Wonderful,, now is very good I'm imagine it was hard work but i see now excllent simulation By the way i modified layout of simulation and post too on Ahmed's contributionAnd of course i will translate to portages Wonderful simulation
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« Last Edit: June 14, 2010, 08:35:38 pm by ahmedelshfie »
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lookang
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Reply #7 on: June 15, 2010, 08:06:35 am » posted from:SINGAPORE,SINGAPORE,SINGAPORE |
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 Thanks Ahmed! now my projectile motion applet lives on in variance forms thanks to you  I still have some ideas about the improvements to made. http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=623.0 has a very good design for projectile motion too. If time permits i will combine the good features into mine! U want to try adding them? let me know
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ahmedelshfie
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Reply #8 on: June 15, 2010, 05:49:47 pm » posted from:SAO PAULO,SAO PAULO,BRAZIL |
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 Of course i would it. with pleasure  I believe that projects develop by EJS need to improve interface for we have the most beautiful layout And this guide us to improve projects no only from side of layout but also from side of physics I mean give us more ideas.
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« Last Edit: June 15, 2010, 06:20:50 pm by ahmedelshfie »
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lookang
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Reply #9 on: June 15, 2010, 06:50:40 pm » posted from:Singapore,,Singapore |
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 I start a new project and u see how u can add in. I try to find time to combine later tonight :-)
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ahmedelshfie
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Reply #10 on: June 15, 2010, 07:01:08 pm » posted from:SAO PAULO,SAO PAULO,BRAZIL |
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 Very well is a good idea I'm waiting 
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lookang
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Reply #11 on: August 31, 2010, 05:18:15 pm » posted from:SINGAPORE,SINGAPORE,SINGAPORE |
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 changes made after 30 August 2010 add 1 http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=1832.0 another Fair = k*v + k2*v^2 to allow exploration of the v^2 model 2 add of the projectile trail 3 made all graphs Active _isPlaying so that the graphs are not connected is not active 4 add range groundx= -vxinit/g*(vyinit+Math.sqrt((vyinit)*(vyinit)+2*g*(yground))); // http://en.wikipedia.org/wiki/Trajectory_of_a_projectile 5 maximum height = - vyinit*vyinit/(2*g); //http://en.wikipedia.org/wiki/Trajectory 6 time of flight tend = groundx/vxinit; //http://en.wikipedia.org/wiki/Trajectory 7 set ball to always same size to the view of the applet 8 // screen view so that it increases if need if(x < xmin ) xmin*=1.2; if(x > xmax) xmax*=1.2; if(y < ymin ) ymin*=1.2; if(y > ymax) ymax*=1.2; 20 March 2011 added better range for ymax, xmax took from up and down applet 20 September 2011 remove all the closet==true for the sliders for web deploy to work saved as another name for the jar to load properly dialog is a panel and visible ==false
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« Last Edit: September 20, 2011, 12:08:06 pm by lookang »
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lookang
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Reply #12 on: September 09, 2010, 04:52:01 pm » posted from:SINGAPORE,SINGAPORE,SINGAPORE |
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 updated with better design 
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lookang
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Reply #13 on: January 07, 2011, 07:41:56 am » posted from:SINGAPORE,SINGAPORE,SINGAPORE |
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