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PhET Simulation: Balancing Act
published by the University of Colorado
In this PhET simulation, you can investigate how a teeter-totter balances, by moving objects of different masses to various positions. Can you make the teeter-totter balance?

This is one of a large number of physics simulations produced at the University of Colorado in the PhET project.
https://phet.colorado.edu/en/simulations/balancing-act
Subjects Levels Resource Types
Motion, Forces, and Energy
- Statics of Rigid Bodies
= Equilibrium
- Informal Education
- Middle School
- High School
- Instructional Material
= Interactive Simulation
Intended Users Formats Ratings
- Learners
- General Publics
- text/html
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Additional Information
Physics To Go This resource was a Physics To Go feature from May 1, 2012 until May 16, 2012. View the feature here!


Access Rights: Free access
License: This material is released under a Creative Commons Attribution 3.0 license. All use requires attribution.
Rights Holder: University of Colorado, 2018
Keywords: Torque, lever arm, torque
Record Creator: Metadata instance created April 24, 2012 by Ed Lee
Record Updated: Feb 22, 2025 by Lyle Barbato
Last Update
when Cataloged:		 May 26, 2015
Other Collections:

Next Generation Science Standards

Disciplinary Core Ideas (K-12)

Forces and Motion (PS2.A)
  • The motion of an object is determined by the sum of the forces acting on it; if the total force on the object is not zero, its motion will change. The greater the mass of the object, the greater the force needed to achieve the same change in motion. For any given object, a larger force causes a larger change in motion. (6-8)

Crosscutting Concepts (K-12)

Cause and Effect (K-12)
  • Cause and effect relationships may be used to predict phenomena in natural or designed systems. (6-8)
  • Systems can be designed to cause a desired effect. (9-12)
Scale, Proportion, and Quantity (3-12)
  • Proportional relationships (e.g. speed as the ratio of distance traveled to time taken) among different types of quantities provide information about the magnitude of properties and processes. (6-8)
  • Algebraic thinking is used to examine scientific data and predict the effect of a change in one variable on another (e.g., linear growth vs. exponential growth). (9-12)

NGSS Science and Engineering Practices (K-12)

Developing and Using Models (K-12)
  • Modeling in 9–12 builds on K–8 and progresses to using, synthesizing, and developing models to predict and show relationships among variables between systems and their components in the natural and designed worlds. (9-12)
    • Use a model based on evidence to illustrate the relationships between systems or between components of a system. (9-12)
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
(University of Colorado, Boulder, 2011), WWW Document, (https://phet.colorado.edu/en/simulations/balancing-act).
AJP/PRST-PER
PhET Simulation: Balancing Act (University of Colorado, Boulder, 2011), <https://phet.colorado.edu/en/simulations/balancing-act>.
APA Format
PhET Simulation: Balancing Act. (2015, May 26). Retrieved April 17, 2025, from University of Colorado: https://phet.colorado.edu/en/simulations/balancing-act
Chicago Format
University of Colorado. PhET Simulation: Balancing Act. Boulder: University of Colorado, May 26, 2015. https://phet.colorado.edu/en/simulations/balancing-act (accessed 17 April 2025).
MLA Format
PhET Simulation: Balancing Act. Boulder: University of Colorado, 2011. 26 May 2015. 17 Apr. 2025 <https://phet.colorado.edu/en/simulations/balancing-act>.
BibTeX Export Format
@misc{ Title = {PhET Simulation: Balancing Act}, Publisher = {University of Colorado}, Volume = {2025}, Number = {17 April 2025}, Month = {May 26, 2015}, Year = {2011} }
Refer Export Format

%T PhET Simulation: Balancing Act %D May 26, 2015 %I University of Colorado %C Boulder %U https://phet.colorado.edu/en/simulations/balancing-act %O text/html

EndNote Export Format

%0 Electronic Source %D May 26, 2015 %T PhET Simulation: Balancing Act %I University of Colorado %V 2025 %N 17 April 2025 %8 May 26, 2015 %9 text/html %U https://phet.colorado.edu/en/simulations/balancing-act


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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.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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