lab report 2.docx

PRINCIPAL INVESTIGATOR: Morgan Green EXPERIMENT NUMBER: #1 EXPERIMENT NAME: Vernier and Micrometer Caliper DATE: 25 August 2008 OBJECT OF EXPERIMENT: To learn how to read a vernier and micrometer caliper. To measure the dimensions of a small object with each instrument and to compute the area, volume and standard deviation for each object. APPARATUS: Vernier Caliper Micrometer Caliper Metal Cylinder PROCEDURE: Following the same format in experiment 1, we measure the 3 dimensions of the wooden block using the vernier caliper. We then compute the area and volume, and the standard deviations for all quantities computed. Finally we record all results on the data sheet. MICROMETER CALIPER: The micrometer caliper divides the millimeter even further, into hundredths of a millimeter. We turn the screw to advance portions of a millimeter. The different scales are used to determine the number of millimeters, half millimeters, and hundredths of a meter, those three numbers added together will give us the full measurement of our object. PROCEDURE: Again, following the format used in experiment 1, we measure the dimensions of a small right cylinder, cylinder P, with the micrometer caliper. We then compute the area and volume, and standard deviations for each of the measurements. We then record all of the final results on the data sheet. DISCUSSION: In this experiment we were able to achieve our goals of learning how to read a vernier and micrometer caliper, measuring the dimensions of a small object with each instrument, and computing the area, volume, and standard deviation for each object. Error could have occurred in this experiment by measuring different parts of the object, one side could be slightly smaller than the other. Greater precision could have been obtained by measuring many different parts of the object and finding the average of all of these measurements.