Practice question · Select all that apply
Which modifications improve the accuracy of a pendulum experiment?
Hints
- Timing error is fixed per measurement, so spread it over many swings.
- The period formula only holds while the swing stays small.
Show the answer
- A. Timing many oscillations and dividing by the count
- C. Using a very heavy bob to reduce air resistance effects
- D. Using a small amplitude (< 10°)
Why
Timing many swings reduces timing error; small angles ensure the small-angle approximation holds.
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