About

7.3.8.6.3 Model g

1. Run Sim
2. http://iwant2study.org/ospsg/index.php/63

 

Translations

Code	Language		Translator	Run

Credits

lookang (This email address is being protected from spambots. You need JavaScript enabled to view it.); andrew duffy

http://iwant2study.org/lookangejss/02_newtonianmechanics_7gravity/ejss_model_gravity11g/gravity11g_Simulation.xhtml 

Briefing Document: Earth-Moon Escape Velocity Simulation

1. Introduction

This document provides a summary of the resource found at the provided link. The resource is an online, interactive simulation, specifically a "JavaScript HTML5 Applet Simulation Model" designed for educational purposes. It focuses on the concepts of Earth-Moon escape velocity and gravitational field strength in one dimension. This model is part of the Open Educational Resources / Open Source Physics @ Singapore project.

2. Key Themes and Ideas

• Interactive Simulation: The core of this resource is a dynamic simulation accessible through a web browser. It aims to allow users to explore abstract concepts like escape velocity and gravitational fields through hands-on manipulation. The use of HTML5 and Javascript means it can be used on a variety of platforms such as: Android/iOS including handphones/Tablets/iPads, Windows/MacOSX/Linux including Laptops/Desktops, ChromeBook Laptops.
• Educational Focus: The resource is specifically tailored for education, particularly at the Junior College level, covering the topic of gravity. It is part of a larger collection of physics simulations developed by Open Source Physics @ Singapore, which is in itself a subset of the larger Open Educational Resources project. This is not intended to be a commercial product, and they encourage embedding it in other web pages.
• Escape Velocity and Gravitational Fields: The simulation focuses on these core physics concepts and their relationship between Earth and the Moon. It allows users to visualize how escape velocity changes depending on the location between these two bodies.
• Open Source and Accessibility: The model is open source, indicating a commitment to free and accessible educational materials. This promotes reuse, adaptation, and customization, while encouraging collaboration amongst educators.
• Technology and Accessibility: The model leverages modern web technologies (JavaScript, HTML5) to ensure it's widely accessible on various devices, including desktops, laptops, tablets, and smartphones. This is important for modern educational settings.

3. Important Facts and Features

• Model Name: The specific model is named "7.3.8.6.3 Earth Moon Escape Velocity Field Strength One Dimension JavaScript HTML5 Applet Simulation Model" or simply "gravity11g". It is specifically identified as Model g.
• Platform: The simulation is built using the EasyJavaScriptSimulation framework, and can be run directly in a web browser using the provided URL: http://iwant2study.org/lookangejss/02_newtonianmechanics_7gravity/ejss_model_gravity11g/gravity11g_Simulation.xhtml
• Previous Java Version: A previous version of this simulation was built using Java and was named "ejs_model_GFieldandPotential1Dv7EarthMoon.jar". This highlights the ongoing evolution of the resource, shifting towards newer, web-friendly technologies.
• Additional Resources: The site includes a link to a GeoGebra model related to the topic, created by Tan Seng Kwang, providing an alternative or supplementary learning experience.
• Broad Scope: The page this simulation is hosted on has a large number of other simulations, covering topics ranging from mechanics to electromagnetism to optics, all with a similar structure for accessibility and open use. This highlights a focus on using simulation to teach a wide variety of concepts within STEM.
• Licensing: The content is licensed under a Creative Commons Attribution-Share Alike 4.0 Singapore License, meaning that it can be shared and modified as long as credit is given and it is shared under similar terms.
• Contact Information: The site provides contact information for the creators (lookang, Andrew Duffy) for more information or permissions concerning the EJS library.

4. Notable Quotes

• "Embed this model in a webpage:" This highlights the intention for the resource to be easily integrated into other educational materials.
• "Open Educational Resources / Open Source Physics @ Singapore": This reinforces the project’s focus on free and accessible educational resources.
• "Contents are licensed Creative Commons Attribution-Share Alike 4.0 Singapore License." This explains the terms of use for the educational materials.
• "Separately, for commercial use of EasyJavaScriptSimulations Library, please read https://www.um.es/fem/EjsWiki/Main/EJSLicense and contact This email address is being protected from spambots. You need JavaScript enabled to view it. directly." This explains the commercial use policy for a crucial element of the project.

5. Implications

This resource is a valuable tool for physics educators. It provides:

• An interactive way to understand complex topics.
• A readily accessible resource that doesn't require expensive software.
• An open source model that can be adapted to different learning styles and educational settings.
• A part of a wider and comprehensive set of STEM educational simulations.

6. Conclusion

The "7.3.8.6.3 Earth Moon Escape Velocity Field Strength One Dimension JavaScript HTML5 Applet Simulation Model" is a well-designed and useful resource for learning about gravitational fields and escape velocity, exemplifying the values of open education and interactive simulation-based teaching. The supporting material highlights the collaborative nature of this educational initiative with multiple authors and project affiliations. This is an excellent tool for physics educators.

 

Escape Velocity & Gravitational Fields Study Guide

Short Answer Quiz

1. What is the primary focus of the "Earth Moon Escape Velocity Field Strength One Dimension JavaScript HTML5 Applet Simulation Model"?
2. According to the provided text, what are some of the platforms on which the simulation model can be used?
3. What is the stated purpose of the provided links within the document, and why is this valuable to physics students?
4. Besides physics simulations, what other disciplines or subjects are represented in the listed resources?
5. What is meant by the term “Open Educational Resources” as demonstrated by this text, and how does it promote learning?
6. Who are the main contributors to the "gravity11g" model, as acknowledged in the "Credits" section?
7. What are some of the other physics concepts that are offered within the text?
8. What is the function of the provided iFrame code, and how does it relate to the simulation?
9. What is the Creative Commons license attached to the content of this website, and what does that mean?
10. What does the mention of "EasyJavaScriptSimulations Library" indicate about the development of the simulations?

Answer Key

1. The simulation model primarily focuses on demonstrating and exploring the concepts of escape velocity and gravitational field strength in one dimension, specifically in the context of the Earth and Moon system.
2. The simulation model can be used on a variety of platforms including Android/iOS devices (like phones/tablets/iPads), Windows/MacOSX/Linux systems (such as laptops/desktops), and ChromeBook Laptops.
3. The links provided in the document offer access to the actual simulation as well as to related resources which are valuable for visualizing and exploring physics concepts, enhancing understanding for students.
4. Beyond physics simulations, the resources listed include models and tools related to chemistry, math, and other STEM subjects like statistics, demonstrating the interdisciplinary nature of the learning platform.
5. "Open Educational Resources" means that materials are freely available and accessible for educational use, promoting widespread learning, innovation, and customization of educational content.
6. The main contributors to the "gravity11g" model are lookang and andrew duffy, as credited in the text of the page.
7. Other physics concepts that are offered include projectile motion, circular motion, energy in various systems, simple harmonic motion, wave phenomena, electromagnetism and much more.
8. The iFrame code is used to embed the simulation model directly into a webpage, making the simulation easily accessible for users without navigating to an external link.
9. The content is licensed under a Creative Commons Attribution-Share Alike 4.0 Singapore License, meaning the work can be shared and adapted with attribution under the same licensing.
10. The mention of "EasyJavaScriptSimulations Library" indicates that the simulations were created using a library designed for creating interactive physics simulations in JavaScript, which enables portability and accessibility on web browsers.

Essay Questions

1. Discuss the educational value of using interactive simulations, like the one described in the source text, for learning physics concepts. In what ways do these simulations enhance understanding beyond traditional methods?
2. Analyze the significance of "Open Educational Resources" and how they contribute to the accessibility and democratization of education. Use specific examples from the text to support your arguments.
3. Explain how the "Earth Moon Escape Velocity Field Strength One Dimension" simulation model could be used to investigate the relationship between gravitational forces, potential energy, and escape velocity. Discuss how this model helps students visualize abstract concepts.
4. Compare and contrast the different simulation models in the provided list in terms of the physics concepts they explore. What does the breadth of simulations provided say about how the platform approaches physics instruction?
5. Assess the impact of incorporating technologies like JavaScript and HTML5 in educational settings. How do these technologies contribute to creating accessible and interactive learning experiences for students studying physics and other subjects?

Glossary of Key Terms

Escape Velocity: The minimum speed an object must have to escape the gravitational pull of a celestial body (like a planet or moon) and not return.

Gravitational Field: A region around a mass where another mass experiences a force of attraction. It is represented by vectors pointing towards the mass creating the field.

One Dimension: In the context of the simulation model, refers to analysis in a single axis of motion, typically vertical in the gravity context.

JavaScript HTML5 Applet: An interactive simulation built using JavaScript programming language and HTML5, designed to run in web browsers without needing plugins.

Open Educational Resources (OER): Educational materials that are freely available and can be used, adapted, and shared by others.

Simulation Model: A simplified representation of a real-world system used to explore and understand its behavior through interactive computer-based programs.

iFrame: An HTML element that allows you to embed one webpage inside another, used here to embed the simulation model into the page.

Creative Commons License: A set of licenses that allow creators to share their work with specific permissions, often promoting reuse and adaptation under certain conditions, like the attribution requirement.

EasyJavaScriptSimulations Library: A software library used to develop interactive educational simulations using Java and JavaScript.

Gravitational Potential Energy: The energy possessed by an object due to its position in a gravitational field.

Versions:

1. http://iwant2study.org/lookangejss/02_newtonianmechanics_7gravity/ejs/ejs_model_GFieldandPotential1Dv7EarthMoon.jar by Todd TimberLake and lookang Java version

Resources

 https://www.geogebra.org/m/va3dbqyd by Tan Seng Kwang

Frequently Asked Questions

1. What is the "Earth Moon Escape Velocity Field Strength One Dimension JavaScript HTML5 Applet Simulation Model" and what does it demonstrate?
2. This model is a simulation, created using JavaScript and HTML5, designed to visualize and explore the concepts of escape velocity, gravitational field strength, and potential between the Earth and the Moon. It allows users to manipulate variables and observe the resulting effects on a one-dimensional representation of the system. The model is intended for educational purposes, specifically for junior college level physics students, and can be used on various platforms, including computers, tablets, and smartphones.
3. What is the purpose of the website "Open Educational Resources / Open Source Physics @ Singapore" and who is it for?
4. The website serves as a repository of open-source educational resources, primarily focused on physics simulations. It is designed for educators, students, and anyone interested in interactive physics learning. The site includes a wide variety of models and simulations, covering diverse topics, and is particularly aimed at supporting junior college and secondary school physics education. The resources are freely accessible and adaptable for different learning contexts.
5. What does the tag "EasyJavaScriptSimulation" signify, and what does it imply about the models on the website?
6. "EasyJavaScriptSimulation" or "EJS" indicates that the models on the site are developed using the Easy Java Simulation tool (now known as Easy JavaScript Simulation, or EJSS). This signifies that the simulations are designed to be interactive and modifiable. It also points to a specific method of creating physics simulations that are readily accessible on web browsers and designed for ease of use and customization by educators.
7. Besides the Earth-Moon model, what other types of simulations can be found on this website?
8. The website hosts a diverse collection of simulations covering a broad range of physics topics. Examples include simulations related to kinematics, collisions, projectile motion, circular motion, energy, oscillations, waves, optics, electromagnetism, nuclear physics, and even some chemistry concepts. There are also models related to more practical applications, like circuit building, as well as models demonstrating more basic principles, like friction. The simulations often incorporate tracking and modeling capabilities. In addition to physics, the site contains interactive educational resources on topics like mathematics and chemistry.
9. What does "Open Source" refer to in the context of this website, and what are the implications?
10. The term "Open Source" signifies that the source code of the simulations on the site are freely available and can be modified, adapted, and shared by users. This allows educators and developers to customize the models to suit their specific needs, to create new simulations, and to contribute to the collaborative development of educational resources. It promotes a community driven approach to learning and makes these simulations free and accessible to everyone.
11. How are these simulations intended to be used in an educational context?
12. The simulations are intended to support interactive learning experiences in the classroom. They are meant to be used as a supplementary tool that enhances understanding of abstract physics principles by allowing users to visualize and experiment with them directly. The simulations allow students to manipulate variables, observe results and make connections between theoretical and actual physical processes. They can be integrated into lectures, laboratory activities, or self-directed study. The inclusion of modeling and tracking functionalities allows for further inquiry and exploration.
13. Are the simulations on the website available for commercial purposes?
14. While the majority of the content, created using EasyJavaScriptSimulation (EJSS), is licensed under the Creative Commons Attribution-Share Alike 4.0 Singapore License and can be used for educational purposes freely, commercial use of the EasyJavaScriptSimulations Library requires specific permission. Users intending to use the library for commercial purposes are directed to contact the relevant developers (This email address is being protected from spambots. You need JavaScript enabled to view it.) and review their license agreement for proper authorization.
15. What technology is used to create the simulations, and how does this affect accessibility?
16. The simulations are primarily built using JavaScript and HTML5, which are web-based technologies. This makes the simulations widely accessible across different platforms, such as Windows, MacOSX, Linux computers, laptops, Chromebooks, as well as Android/iOS tablets and smartphones, through a web browser without requiring any additional software installation. This platform accessibility is a core objective of the project.