Length is one of the fundamental physical quantities. Using a meter stick of a foot rule is the simplest way to measure length. Centimetre and inch are two common units of length. Least count is the smallest value that can be read from any measuring device. A meter stick least count is one milimeter or 0.1 centimeter while the least count of English foot rule is 1/20 of an inch or 0.05 inch. Note that there may be other models of a foot rule whose least counts may differ from what was mentioned above. Objectives 1. Measure length using a meter stick and a foot rule. 2. Determine the number of centimeters in an inch. Materials A meterstick An English ruler A4 bond paper Procedure 1. Determine the least counts of your meterstick and foot rule. 2. Measure the length of an A4 bond paper using the meterstick. Make four other measurements of the same bond paper using different parts of the meter stick as the starting point for each of the four times. 3. The reading at the mark with which you start the measurement must be subtracted from the final reading. Record the measurements in the table below. 4. Repeat steps 2 and 3 using an English ruler this time. Record the measurements in the table below. 5. Using the data gathered from step 2, compute for the average of the length by finding the arithmetic mean of the measurements. Do the same for the data obtained in sten A 6. Using the averages oblained in step 5, compute the numuer ur centimeters in an inch. Compare your results with the accepted value by computing the percentage error. %error3(experimental theoretical)/theoretical x 100% Data Least count of meterstick Least count of English Ruler: Table 1 Length of A4 bond paper Length Trial Meterstick Foot rule 1 3 Average Experimental value: 1 inch = cm Accepted value: 1 inch 2.54 cm %3 Percentage error3 Computations Conclusion