A digital stopwatch reads to 0.01 s, but human reaction time makes the uncertainty in a hand-timed reading about:

  1. pm 0.01 s
  2. pm 0.0001 s
  3. pm 1 min
  4. pm 0.1–0.2 s
Answer

D) pm 0.1–0.2 s

Reaction time dominates. SLO P-11-N-12 · Application

Physics MCQ · More Experimental Skills and Data Analysis MCQs · Practise