Pendulum Lab

Pendulum Lab Screenshot  Download  Embed
  • Periodic Motion
  • Simple Harmonic Motion
  • Conservation of Energy
Flash Logo Original Sim and Translations

Topics

  • Periodic Motion
  • Simple Harmonic Motion
  • Conservation of Energy
  • Period
  • Pendulum

Description

Play with one or two pendulums and discover how the period of a simple pendulum depends on the length of the string, the mass of the pendulum bob, the strength of gravity, and the amplitude of the swing. Observe the energy in the system in real-time, and vary the amount of friction. Measure the period using the stopwatch or period timer. Use the pendulum to find the value of g on Planet X. Notice the anharmonic behavior at large amplitude.

Sample Learning Goals

  • Design experiments to determine which variables affect the period of a pendulum
  • Quantitatively describe how the period of a pendulum depends on these variables
  • Explain the small-angle approximation, and define what constitutes a “small” angle
  • Determine the gravitational acceleration of Planet X
  • Explain the conservation of mechanical energy, using kinetic energy and gravitational potential energy
  • Describe the Energy Graph from the position and speed of the pendulum
Version 1.0.12

Teacher Tips

Download teacher tips PDF Overview of sim controls, model simplifications, and insights into student thinking ( PDF ).

Video Primer

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Teacher-Submitted Activities

Pendulum Basics Inquiry A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein MS Lab Physics
Pendulum Lab 2: Find g (Inquiry Based) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein HS
UG-Intro
HW Mathematics
Physics
Pendulum Lab 1: intro to pendulums (Inquiry Based) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein UG-Intro
HS
Lab
HW
Physics
Mathematics
Swinging Physics Using Pendulum Phet A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. John Lewis and Michi Ishimoto UG-Intro
HS
Lab
Discuss
Physics
Pendulum investigation for Middle School A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Jefferson County Middle School Workshop MS Lab Mathematics
Physics
Alignment of PhET sims with NGSS This contribution was designed by PhET. Trish Loeblein HS Other Chemistry
Earth Science
Physics
Biology
Mapping of PhET and IBDP Physics Jaya Ramchandani HS Other Physics
MS and HS TEK to Sim Alignment Elyse Zimmer MS
HS
Other Biology
Physics
Chemistry
KE and PE using the Pendulum Lab Judith Coburn MS
HS
Lab Physics
PhET Simulations Aligned for AP Physics C Roberta Tanner HS Other Physics
Qualitative Introduction to Energy Steve Banasiak HS
MS
Lab Physics
KE and PE with the pendulum, Student Don Loving UG-Intro
HS
MS
Lab
Guided
Physics
Pendulum Lab Bunyamin Purkaya MS Lab Physics
Matematičko njihalo Anica Antolek Hrgar HS Guided Physics
Mecânica (Atividades) nos OA's do PhET Artur Araújo Cavalcante e Gilvandenys Leite Sales UG-Intro
Grad
HS
Other
MS
Lab
Demo
HW
Discuss
Guided
Other
Other
Physics
Earth Science
Energia Mecânica (MHS) no Pendulum Lab (HTML5) Artur Araújo Cavalcante e Gilvandenys Leite Sales HS
MS
Other
Guided
HW
Other
Other
Physics
Mathematics
Earth Science
MHS para pêndulos e sistemas massa-mola Artur Araújo Cavalcante e Gilvandenys Leite Sales HS
Other
Other
Guided
HW
Earth Science
Physics
Mathematics
Cálculo da aceleração da gravidade (g) utilizando o pêndulo simples Rodrigo Nogueira Grad
HS
Discuss
Guided
HW
Demo
Lab
Physics
Earth Science
PERIODO EN UN PÉNDULO FRANCISCO CRUZ CANTU HS Demo
Lab
Guided
HW
Physics
Pendulo Simple Uriel De Jesus Argel casarrubia MS
UG-Intro
Guided
Lab
HW
Physics
Longitud de un péndulo y su periodo. Denis Salazar UG-Intro
MS
HS
Demo
Lab
Guided
HW
Mathematics
Physics

Language Download or Run Tips
Arabic All العربية Download Run now معمل البندول
Azerbaijani All Azerbaijani Download Run now Rəqqas labaratoriyası
Basque All Basque Download Run now Pendulu-laborategia
Belarusian All беларускі Download Run now Лабараторыя маятнікаў
Bosnian All Bosanski Download Run now Matematičko klatno
Bulgarian All български Download Run now Махало
Chinese (Simplified) All 中文 (中国) Download Run now 钟摆实验
Chinese (Traditional) All 中文 (台灣) Download Run now Pendulum Lab_鐘擺實驗室
Croatian All hrvatski Download Run now Matematičko njihalo
Danish All Dansk Download Run now Pendul-laboratorium
Dutch All Nederlands Download Run now Slinger lab
French All français Download Run now Laboratoire pendulaire
Georgian All ქართული Download Run now ქანქარა
German All Deutsch Download Run now Pendel
Greek All Ελληνικά Download Run now Εργαστήριο εκκρεμούς
Hindi All हिंदी Download Run now लोलक प्रयोगशाला 
Hungarian All magyar Download Run now Ingalabor
Irish All Gaeilge Download Run now Saotharlann Luascadáin
Italian All italiano Download Run now Laboratorio Pendoli
Japanese All 日本語 Download Run now 振り子の実験
Korean All 한국어 Download Run now 진자 실험
Latvian All Latviešu Download Run now Svārsta laboratorija
Marathi All मराठी Download Run now लंबकाची प्रयोगशाळा
Mongolian All Монгол (Монгол) Download Run now Математик дүүжингийн лаборатори
Norwegian Bokmal All Norsk bokmål Download Run now Pendellaboratorium
Norwegian Nynorsk All Norwegian Nynorsk Download Run now Pendelforsøk
Persian All فارسی Download Run now آزمایشگاه آونگ
Polish All polski Download Run now Wahadło matematyczne
Portuguese (Brazil) All português (Brasil) Download Run now Laboratório do Pêndulo
Serbian All Српски Download Run now Математичко клатно
Slovak All Slovenčina Download Run now Kyvadlo
Slovenian All Slovenščina Download Run now Nitno nihalo
Spanish All español Download Run now Laboratorio de péndulo
Spanish (Mexico) All español (México) Download Run now Laboratorio de Péndulo 
Spanish (Peru) All español (Perú) Download Run now Laboratorio de Péndulos
Swedish All svenska Download Run now Pendellabb
Ukrainian All українська Download Run now Лабораторія маятників Download teacher tips PDF
Vietnamese All Tiếng Việt Download Run now Con lắc

The new HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.

iPad:
iOS 11+ Safari
iPad compatible sims

Android:
Not officially supported. If you are using the HTML5 sims on Android, we recommend using the latest version of Google Chrome.

Chromebook:
Latest version of Google Chrome
The HTML5 and Flash PhET sims are supported on all Chromebooks.
Chromebook compatible sims

Windows Systems:
Microsoft Edge and Internet Explorer 11, latest version of Firefox, latest version of Google Chrome.

Macintosh Systems:
macOS 10.9.5+, Safari 9+, latest version of Chrome.

Linux Systems:
Not officially supported. Please contact phethelp@colorado.edu with troubleshooting issues.

Design Team Third-party Libraries Thanks To
  • Jonathon Olson (developer)
  • Amy Rouinfar (lead designer)
  • Michael Dubson (original designer)
  • Trish Loeblein
  • Ariel Paul
  • Kathy Perkins
  • almond-0.2.9.js
  • base64-js-1.2.0.js
  • FileSaver-b8054a2.js
  • font-awesome-4.5.0
  • game-up-camera-1.0.0.js
  • himalaya-0.2.7.js
  • jama-1.0.2
  • jquery-2.1.0.js
  • lodash-4.17.4.js
  • pegjs-0.7.0.js
  • seedrandom-2.4.2.js
  • text-2.0.12.js
  • TextEncoderLite-3c9f6f0.js
  • Mobile Learner Labs