RESUMO
This paper argues that Physics' reputation as a hard subject may be attributed to a number of variables, the most important being the method of teaching, characteristics of teachers and the learners. Keeping in view the recent changes in teaching methodology and concurrent advances in information technology [IT], the present study was designed to investigate the possible role of computer instructions in improving the learning process especially in the subject of physics at secondary school level. To achieve this objective, an experiment was performed at the university Wensam College Dera Ismail Khan. Matched group design was used. Based on scores on a pre-test in physics, the students were divided into an experimental and a control group. The control group was taught by the traditional lecture method and the experimental group by the use of computer instructions. Two achievement tests were conducted; the first one after one month teaching and the other one after three months of experiment. Findings of the study revealed that the experimental group performed much better than the control group in Physics achievement test. It was concluded that the use of educational technology has positive effect on the academic achievement and retention of the students at secondary level