On Earth all objects have a weight which Earths mass exerts on them to downward force of gravity. The weight of an object can find somethings weights in Newton unite. It calculated on multiply the mass in kilograms by the acceleration of gravity in the units of meters/seconds2. The purpose of this study was to design and develop an experimental setup for measuring the gravity acceleration. It involved designing by using free-fall motion method in vacuum tube based on digital Technology and photo gate sensor measured the velocity of the ball object. The data were analyzed by Microsoft Excel. The value of gravity acceleration obtained at 9.617 m/s2 from the experiment set up. The value from the experiment was compared with the obtained from true value at Bangkok Thailand. It found the error at 1.697 %. The assessment of the quality used a questionnaire for data collection. Five content experts in Physics teaching evaluated it. That found mean 4.89. The results of the study revealed that the experimental set up were excellent quality of and high efficiency. So that this experiment suitable to be used in physics classroom.

The purposes of this research were 1) to construct and evaluate the efficiency of the Computer Assisted Instruction (CAI) on Nuclear Physics class to have 80:80 effectiveness standards. 2) to compare learning achievement between pre-test and post-test scores after using the CAI 3) to study student’s opinion about CAI. Samples were the second year of Science and Technology students of the Rajamangala University of Technology Thanyaburi in 2011 academic year selected by simple random sampling. The first test was done by one-to-one evaluation and the second one by a small group in order to revise the CAI before implementing within the subject. The efficiency of the CAI was evaluated by experts both in content and production technique of the courseware. The results of this research were shown : 1) the CAI on Nuclear Physics contained the effectiveness at 87.00:85.33 which was higher than the standard criterion set (80:80) 2) the comparison between pre-test and post-test was found that the post-test score of students who studies with CAI were significantly higher than the pre-test score at .05 level and 3) the mean score of the student’s opinion about CAI was 4.35 shown that most of them satisfied the CAI on Nuclear Physics at good level.

The main problems of learning skills of a physics I for engineer’s course due to the lack of standard computer assisted instruction multimedia and its abstract nature therein were improved and repelled by using the invented teaching animation modules. Applying the established e-learning multimedia modules to the registered students from many faculties of the Rajamangala University of Technology Phra Nakorn via the learning management system it found that the improvement recipes have appropriate to increase both the learning skills and their highly attitude to this subject. The improved students by the invented media can effectively apply the contents to the higher levels study of concerning subjects.

The purpose of this study was to investigate obtained knowledge using from Physics I for Engineers for daily life application of undergraduate student from faculty of engineering Rajamangala University of Technology Phra Nakorn. Sample was 316 students which taken from four engineering majors; computer electrical industrial and mechanical engineering. A questionnaire a four point scale was used as testing tool. The statistical analyses were performed in mean standard deviation and one way analysis of variance. The results revealed that students used their obtained knowledge in moderate level (3.10). Students in each programs showed significantly different used their obtained knowledge at 0.05 level. Electrical engineering students (3.27) showed highest number of the course content using follow by mechanical engineering (3.09) computer engineering (3.07) and industrial engineering (2.75) respectively.