In measuring g with a falling ball and light gates, the most significant uncertainty may be:

  1. the distance between the gates if small
  2. the colour of the ball
  3. the time, measured electronically to 0.001 s
  4. the value of pi
Answer

A) the distance between the gates if small

Electronic timing is precise. SLO P-11-N-26 · Understanding

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