Gravity Field Potential Lab

Contains Ads

an open source physics at Singapore simulation based on codes written by Anne Cox, Wolfgang Christian, Francisco Esquembre and Loo Kang WEE.
more resources can be found here

Every object sets up a gravitational field and thus potential around itself due to its mass. When two objects enter each other’s gravitational fields, they will be attracted towards each other.
Hence, a gravitational field is a region of space in which any object that lies in it experiences a gravitational force towards the object that creates the field, due to its mass.
The intent of these activities is to allow students be like a student-scientists and collect their own data to form an understanding of potential energy.
The test mass (green) is at r = 100 m, observe and record the value for U r=100 = -6.67 x10-11 J
Click play and pause the model when r = 90 m, record the value of U r=90 = ____________ J
Click play and pause the model when r = 80 m, record the value of U r=80 = ____________ J
Click play and pause the model when r = 70 m, record the value of U r=70 = ____________ J
Click play and pause the model when r = 60 m, record the value of U r=60 = ____________ J
Click play and pause the model when r = 50 m, record the value of U r=50 = ____________ J
Click play and pause the model when r = 40 m, record the value of U r=40 = ____________ J
Click play and pause the model when r = 30 m, record the value of U r=30 = ____________ J
Click play and pause the model when r = 20 m, record the value of U r=20 = ____________ J
Calculate the change in U from r = 100 to r = 50.
Answer is about ΔU=-[6.67x10-11(1)(100)50-6.67x10-11(1)(100)100]=-6.67x10-9J
Check the "your model" checkbox and a teal color line appear. For example if the model is , U=-GmMr, key in -6.67*1*100/abs(r) and observe the closeness of fit of the orange color line (data collected) versus the teal color line (model proposed).
Suggest with reason why you think the model -6.67*1*100/abs(r) is accurate.
Note that the model already has a multiple of x10-11 so there is no need to key it.
This is a Lab that allows the exploration of this in a one dimensional space.

Interesting Fact
This app produce real numbers to coincident with the real world data.

My sincere gratitude for the tireless contributions of Francisco Esquembre, Fu-Kwun Hwang, Wolfgang Christian, Félix Jesús Garcia Clemente, Anne Cox, Andrew Duffy, Todd Timberlake and many more in the Open Source Physics community. I have designed much of the above based on their ideas and insights.
This research is supported by the eduLab project NRF2015-EDU001-EL021 , awarded by the Prime Minister Office, National Research Foundation (NRF), Singapore in collaboration with National Institute of Education (NIE), Singapore and the Ministry of Education (MOE), Singapore.

Network Learn together?
FaceBook Fan Page:
Digital Library:
Read more

What's New

icon added

landing page is now the simulation
images are set to width = "100%"
better drawing for objects with radial SVG
smaller layout for iOS iPad and iOS, Android remains the best user experience
Read more

Additional Information

December 28, 2016
Current Version
Requires Android
4.1 and up
Content Rating
Interactive Elements
Users Interact, Shares Info, Shares Location, Digital Purchases
Offered By
Open Source Physics Singapore
©2019 GoogleSite Terms of ServicePrivacyDevelopersArtistsAbout Google|Location: United StatesLanguage: English
By purchasing this item, you are transacting with Google Payments and agreeing to the Google Payments Terms of Service and Privacy Notice.