Understanding the Accepted Error in Stopwatch Usage

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SUMMARY

The discussion centers on the accepted error margin when using a handheld stopwatch for timing experiments. Participants agree that human reaction time significantly contributes to timing inaccuracies, with a consensus suggesting an accepted error of approximately +/- 0.1 seconds. The stopwatch in question is capable of measuring to 0.01 seconds, but this precision is often overshadowed by human factors. The conversation also references the Wikipedia article on reaction time for further insights.

PREREQUISITES
  • Understanding of human reaction time variability
  • Familiarity with stopwatch precision and limitations
  • Basic knowledge of experimental design and error analysis
  • Ability to interpret scientific articles and references
NEXT STEPS
  • Research the impact of human reaction time on experimental accuracy
  • Explore methods to minimize timing errors in experiments
  • Learn about statistical analysis of experimental data
  • Review the Wikipedia article on reaction time for comprehensive insights
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Students conducting experiments, educators teaching experimental design, and researchers interested in timing accuracy and human factors in measurements.

nicedazed
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Homework Statement



I'm not too sure if this is the correct forum, but I had an experiment where we were timing things with a hand held stopwatch. The stopwatch goes to 0.01 seconds, but clearly the human error would outweigh that error.

So, if anyone could help me, I would like to know what the 'accepted' error in pushing a stopwatch would be.

Yes, I know we all have different reaction times, but I was thinking along the lines of +/- 0.1 seconds?

Thanks



Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
half of that
try clicking it twice voluntarily and you know the error
neurons shoot at ahigh speed ,almost the same as on witnessing an event
 
nicedazed said:

Homework Statement



I'm not too sure if this is the correct forum, but I had an experiment where we were timing things with a hand held stopwatch. The stopwatch goes to 0.01 seconds, but clearly the human error would outweigh that error.

So, if anyone could help me, I would like to know what the 'accepted' error in pushing a stopwatch would be.

Yes, I know we all have different reaction times, but I was thinking along the lines of +/- 0.1 seconds?

Thanks



Homework Equations





The Attempt at a Solution


Wow, the wikipedia article has lots of stuff in it! Yoiks.

Anyway, you may be able to find good into to use in the article. You can even reference it in you lab report:

http://en.wikipedia.org/wiki/Reaction_time

.
 

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