A 21-item Likert-scale questionnaire was developed to use in this study for examining students’ perceptions towards the computer-simulated physics experiment on liquid pressure on six subscales: flow, enjoyment, perceived learning, perceive ease of use, perceive of usefulness, perceive of satisfaction. All of these 5-point Likert scale items obtained from (Cheng, 2014) and Barzilai and Blau (2014). From the English version, an identical version in Thai was constructed, and one expert was recruited to identify communication validity of the items. The respondents were required to consider each possible reason for computer simulation and rate how much the respondent agree with into five scale (1-strongly disagree; 2-disagree; 3-neutral; 4-agree; 5-strongly agree). The reliability for the overall questionnaire was 0.88 and for each
subscale was presented