Uncertainty and Error Date Of Experiment : 1st October 2013 Course Name and Code : Physics Lab 1 (PAYOFF) Instructor’s name : Dry. Gaza Nick Safer Objective 1. To measure Human Reaction Time 2. To find uncertainty and error of a measurement Apparatus 1. Ruler Theory Human Reaction Time is a measure of how quickly human can respond to a particular stimulus. This experiment is done by dropping a ruler and measuring the distance the ruler falls.
On this experiment, the purpose of conducting the human reaction time is as an example indirect measurement, where the direct measurements which is the distance the ruler is falling is calculated in order to calculate the indirect measurement which is the reaction time. The relationship of this reaction can be derived when the motion is at constant acceleration. Ay=vote+ h Ay = h tat s = h get (initial velocity is O)