Find G in Pendulum Experiment: Help Solve I Need

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SUMMARY

The forum discussion centers on a pendulum experiment aimed at calculating the gravitational acceleration "g" using the formula T² = 4π²/g. The user presents three trials with varying lengths (L) and corresponding time periods (T), but expresses confusion regarding the calculations for T² and the correct application of the formula. Key variables include Effective Length (EL), Time Period (TT), and the relationship between these measurements and the calculation of "g". The user seeks clarification on how to properly derive "g" from the provided data.

PREREQUISITES
  • Understanding of pendulum mechanics and the relationship between length and period
  • Familiarity with the formula T² = 4π²/g
  • Basic knowledge of experimental data collection and analysis
  • Ability to perform mathematical calculations involving squares and ratios
NEXT STEPS
  • Review the derivation of the formula T² = 4π²/g in the context of pendulum motion
  • Learn how to accurately measure and record time periods for pendulum swings
  • Explore the impact of varying lengths on the time period of a pendulum
  • Investigate common sources of error in pendulum experiments and how to mitigate them
USEFUL FOR

This discussion is beneficial for physics students, educators conducting pendulum experiments, and anyone interested in understanding the principles of gravitational acceleration and pendulum dynamics.

cpriyan
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I Need help...I'm not getting the value of "g" correctly..please someone help/
This is a pendulum experiment to find "g".

S L EL T TT T^2 G


1 80 82.43 35 35/80?? (35/80)^2?
2 70 72.43 33 33/70?? (33/70)^2?
3 60 62.43 31 31/60?? same


Plz help me find the value of g , time period and t^2...i'm getting confused...or missing out something...nd not getting the reqd result...when i apply T^2 = 4(pi)^2/g formula/...PLZ HELP!
 
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cpriyan said:
I Need help...I'm not getting the value of "g" correctly..please someone help/
This is a pendulum experiment to find "g".

S L EL T TT T^2 G


1 80 82.43 35 35/80?? (35/80)^2?
2 70 72.43 33 33/70?? (33/70)^2?
3 60 62.43 31 31/60?? same


Plz help me find the value of g , time period and t^2...i'm getting confused...or missing out something...nd not getting the reqd result...when i apply T^2 = 4(pi)^2/g formula/...PLZ HELP!

EL =Effctive Length
TT =Time Period
 
What are all your variables/values and what exactly are you trying to solve?
It looks like you have three trials with different values for everything but it isn't presented in a manner that makes sense without some more explanation.

S is sample? L is length? T is time?
 

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