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published by the PhET
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This Java simulation allows students to choose from a helium balloon, a hot air balloon, or a rigid sphere to explore the behavior of different gases in different containers. You can adjust volume, pressure, or temperature to see how each variable affects floating or sinking. Registered users have access to teaching tips and teacher-created lessons that incorporate the simulation.

Note:  As of 2020, the PhET Project has partnered with Leaning Technologies to allow Java sims to run in a PC browser via CheerpJ. May currently be difficult to run on iPads.

Please note that this resource requires Java Applet Plug-in.
Subjects Levels Resource Types
Fluid Mechanics
- General
- Statics of Fluids
= Density and Buoyancy
Thermo & Stat Mech
- Models
= Ideal Gas
- High School
- Lower Undergraduate
- Informal Education
- Instructional Material
= Activity
= Curriculum support
= Interactive Simulation
Appropriate Courses Categories Ratings
- Physical Science
- Physics First
- Conceptual Physics
- Algebra-based Physics
- AP Physics
- Activity
- New teachers
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Free access
© 2007 University of Colorado, Physics Education Technology
Additional information is available.
Gas law, buoyancy, fluids, gas , pressure, temperature, thermodynamics
Record Cloner:
Metadata instance created November 15, 2007 by Alea Smith
Record Updated:
October 30, 2020 by Caroline Hall
Last Update
when Cataloged:
November 15, 2007
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
(PhET, Boulder, 2007), WWW Document, (https://phet.colorado.edu/en/simulation/balloons-and-buoyancy).
PhET Simulation: Balloons & Buoyancy (PhET, Boulder, 2007), <https://phet.colorado.edu/en/simulation/balloons-and-buoyancy>.
APA Format
PhET Simulation: Balloons & Buoyancy. (2007, November 15). Retrieved May 21, 2024, from PhET: https://phet.colorado.edu/en/simulation/balloons-and-buoyancy
Chicago Format
PhET. PhET Simulation: Balloons & Buoyancy. Boulder: PhET, November 15, 2007. https://phet.colorado.edu/en/simulation/balloons-and-buoyancy (accessed 21 May 2024).
MLA Format
PhET Simulation: Balloons & Buoyancy. Boulder: PhET, 2007. 15 Nov. 2007. 21 May 2024 <https://phet.colorado.edu/en/simulation/balloons-and-buoyancy>.
BibTeX Export Format
@misc{ Title = {PhET Simulation: Balloons & Buoyancy}, Publisher = {PhET}, Volume = {2024}, Number = {21 May 2024}, Month = {November 15, 2007}, Year = {2007} }
Refer Export Format

%T PhET Simulation: Balloons & Buoyancy %D November 15, 2007 %I PhET %C Boulder %U https://phet.colorado.edu/en/simulation/balloons-and-buoyancy %O application/java

EndNote Export Format

%0 Electronic Source %D November 15, 2007 %T PhET Simulation: Balloons & Buoyancy %I PhET %V 2024 %N 21 May 2024 %8 November 15, 2007 %9 application/java %U https://phet.colorado.edu/en/simulation/balloons-and-buoyancy

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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Style.org: Electronic References.

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