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Gravity Force Lab

"Gravity Force Lab" is an educational simulation in HTML5, by PhET Interactive Simulations at the University of Colorado Boulder. For a description of this simulation, associated resources, and a link to the published version, visit the simulation's web page.

Try it!

Click here to run "Gravity Force Lab".

Screenshot

Documentation

The PhET Development Overview is the most complete guide to PhET Simulation Development. This guide includes how to obtain simulation code and its dependencies, notes about architecture & design, how to test and build the sims, as well as other important information.

Quick Start

(1) Clone the simulation and its dependencies:

git clone https://github.com/phetsims/assert.git
git clone https://github.com/phetsims/axon.git
git clone https://github.com/phetsims/babel.git
git clone https://github.com/phetsims/brand.git
git clone https://github.com/phetsims/chipper.git
git clone https://github.com/phetsims/dot.git
git clone https://github.com/phetsims/gravity-force-lab.git
git clone https://github.com/phetsims/inverse-square-law-common.git
git clone https://github.com/phetsims/joist.git
git clone https://github.com/phetsims/kite.git
git clone https://github.com/phetsims/perennial.git perennial-alias
git clone https://github.com/phetsims/phet-core.git
git clone https://github.com/phetsims/phetcommon.git
git clone https://github.com/phetsims/phetmarks.git
git clone https://github.com/phetsims/query-string-machine.git
git clone https://github.com/phetsims/scenery.git
git clone https://github.com/phetsims/scenery-phet.git
git clone https://github.com/phetsims/sherpa.git
git clone https://github.com/phetsims/sun.git
git clone https://github.com/phetsims/tambo.git
git clone https://github.com/phetsims/tandem.git
git clone https://github.com/phetsims/twixt.git
git clone https://github.com/phetsims/utterance-queue.git

(2) Install dev dependencies:

cd chipper
npm install
cd ../perennial-alias
npm install
cd ../gravity-force-lab
npm install

(3) Transpile the TypeScript code to JavaScript by running grunt output-js-project --live. This starts a file-watching process that will automatically transpile new or changed files.

(4) In a new terminal/command prompt, start an http-server

(5) Open in the browser: http://localhost/gravity-force-lab/gravity-force-lab_en.html (You will probably need to modify this URL based on your HTTP port and relative path.)

Optional: Build the simulation into a single file

(1) Change directory to the simulation directory: cd ../gravity-force-lab

(2) Build the sim: grunt --brands=adapted-from-phet. It is safe to ignore warnings like >> WARNING404: Skipping potentially non-public dependency, which indicate that non-public PhET-iO code is not being included in the build.

(3) Open in the browser: http://localhost/gravity-force-lab/build/adapted-from-phet/gravity-force-lab_en_adapted-from-phet.html (You will probably need to modify this URL based on your HTTP port and relative path.)

Get Involved

Contact us at our Google Group: Developing Interactive Simulations in HTML5

Help us improve, create a New Issue

License

See the LICENSE