Determining the Arbitrary Unit of Length · RMPH 2018 #A
Physics · mechanics
Problem
Using the available experimental apparatus (stopwatch, plummet, expanded polystyrene plate, pin, and grid-marked paper and plastic sheets), determine the distance in millimeters between the lines on the paper sheet and plastic sheet. This distance is called the arbitrary unit of length (a.u.). The gravitational constant value is g=9.8 ms−2.
A.1. Design an experiment to determine, in millimeters, the distance between the lines on the paper sheet and the plastic sheet using some of the available items. Fill the appropriate box in the answer sheet with a brief description of the experimental method that you propose.
A.2. Make measurements as in proposed method, and record measured data in the appropriate tables in the answer sheet.
A.3. Use a suitable processing of data obtained from measurements and determine (in mm.) the value of arbitrary unit of length - the distance between lines on the sheet of paper and plastic sheet. In the appropriate box in the answer sheet, specify the method that you have chosen for processing data, describe the calculations for determining the value of a.u. in millimeters and write the result in the format #.# mm.