This document provides the findings of pilot tests of 10 units for an applied science course for high school vocational students. Each of the reports on the pilot tests of the Principles of Technology units contains information on procedures, methodology limitations, sample, the pretest/posttest instrument and results, student attitude results, teacher results, and conclusions. Pilot test findings are presented for these units: force, work, rate, resistance, energy, power, force transformers, momentum, waves and vibrations, and energy convertors. Appendixes provide pretest/posttest by objectives (and by percentages for some units), mean scores, pretest/posttest frequencies, student attitude data, and teacher data and comments. (YLB)