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Pendulum Lab

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


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 1.0.3
Language   Play    
Basque All Basque Run now Pendulu-laborategia  
Bosnian All Bosanski Run now Matematičko klatno  
Bulgarian All български Run now Махало  
Chinese (Simplified) All 中文 (中国) Run now 钟摆实验  
Chinese (Traditional) All 中文 (台灣) Run now Pendulum Lab_鐘擺實驗室  
Croatian All hrvatski Run now Matematičko njihalo  
Danish All Dansk Run now Pendul-laboratorium  
Dutch All Nederlands Run now Slinger Lab  
French All français Run now Laboratoire pendulaire  
German All Deutsch Run now Pendel  
Greek All Ελληνικά Run now Εργαστήριο εκκρεμούς  
Hindi All हिंदी Run now लोलक प्रयोगशाला   
Hungarian All magyar Run now Ingalabor  
Italian All italiano Run now Laboratorio Pendoli  
Korean All 한국어 Run now 진자 실험  
Latvian All Latviešu Run now Svārsta laboratorija  
Norwegian Bokmal All Norsk bokmål Run now Pendellaboratorium  
Norwegian Nynorsk All Norwegian Nynorsk Run now Pendelforsøk  
Persian All فارسی Run now آزمایشگاه آونگ  
Polish All polski Run now Wahadło matematyczne  
Portuguese (Brazil) All português (Brasil) Run now Laboratório do Pêndulo  
Serbian All Српски Run now Математичко клатно  
Slovak All Slovenčina Run now Kyvadlo  
Slovenian All Slovenščina Run now Nitno nihalo  
Spanish All español Run now Laboratorio de péndulo  
Spanish (Mexico) All español (México) Run now Laboratorio de Péndulo   
Spanish (Peru) All español (Perú) Run now Laboratorio de Péndulos  
Swedish All svenska Run now Pendellabb  
Ukrainian All українська Run now Лабораторія маятників  
Vietnamese All Tiếng Việt Run now Con lắc